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HomeMy WebLinkAbout20061208Part II.pdf127 accommodating our schedule.So we will continue.I believe we were finished with questions from the Commission. Are there any other questions from the Commission? (No response. COMMISSIONER SMITH:Then redirect, Mr. Kline? MR. KLINE:Thank you, Madame Chairman, I do have a couple of redirect questions. REDIRECT EXAMINATION BY MR. KLINE: Mr. Said, Mr. Woodbury asked you several questions regarding Intermountain Gas Company s purchase gas adj ustment mechanism.And in response to a question proposed by Mr. Woodbury on that issue , you stated that Intermountain Gas has a fuel adj ustment clause or a fuel adj ustment mechanism to purchase gas adj ustment mechanism based on a unit cost.Could you tell me about that a little bit? Yes.My understanding of Intermountain Gas s power -- gas power adj ustment -- I'm not sure of the exact name. Purchase gas adj ustment? -- purchase gas adj ustment is based on a dollar-per-therm, I believe, basis.And so it is a rate per 128 consumption of power that's used by customers.And the mechanism looks at the proj ected cost on a per unit basis compared to an existing component of rate that is also on a per unit of consumption basis. If Idaho Power Company s power cost adj ustment mechanism had been established as a unit cost as the Company originally proposed, would the Company have an issue today regarding the load growth adj ustment mechanism? I don t believe so, no.The Company s original proposal was on a per-unit basis.And that was the reason that we didn t feel a load growth adj ustment was required.And it was only when the Commission adopted a power cost adjustment based on dollars rather than a per unit cost that a load growth adj ustment rate became appropriate. Does Intermountain Gas Company s purchase gas adj ustment allow Intermountain Gas to recover its prudently-incurred commodity or fuel expenses associated with load growth between rate cases? Yes , it does. Commissioner Hansen asked you a couple of questions regarding the perception of customers when the power cost And he indicated that customers kindadj ustment occurs in June. of expect to pay more when there is a drought or when power costs are higher.And then in low water conditions -- I mean, they expect to see that.What about the situation where you 129 have got -- well , could you comment on that part of his questions? Yes.Commissioner Hansen s question then got more specific and suggested that perhaps in a high water condition there might arise a circumstance where customers would be expecting a rate decrease and instead would see a rate increase associated with the Company s proposal.In reality, I think the opposi te end of the spectrum is the more likely case that in a drought condition when the Company is experiencing high power supply expenses, Mr. Hessing s recommendation of a high load growth adjustment rate could potentially remove enough of those expenses such that customers were seeing a decrease in rates at a time when power supply costs were their highest.I think that's the more likely scenario when looking at the ends of the spectrum. Mr. Eddie, also on cross-examination , addressed a question to you regarding whether acceptance of the methodology that Idaho Power Company is proposing in this case would make it more attractive for the Company to encourage load growth. Idaho Power , under your proposal , is only being compensated for the costs incurred in the PCA, would Idaho Power have an incentive as he has discussed? No.That's the maj or point that, I think, I was trying to make in response to Mr. Eddie is that the best that the Company can possibly do even under the Company s proposal 130 is to recover the costs that it actually incurred to serve the new customer; and, therefore, there is no real incentive to go out and sell additional killowatt hours because the best we can do is recover our expenses.We are not going to recover more dollars than the cost that actually occurred. MR. KLINE:That's it. COMMISSIONER SMITH:Thank you, Mr. Kl ine . And thank you, Mr. Said. I don t know -- was there any agreement on the part of the parties as to who needed to go next or any time constraints on any of the witnesses? MR. KLINE:No. Okay.Then looks go toCOMMISSIONER SMITH: the Industrial Customers. MR. THOMPSON:Thank you. The Industrial Customers of Idaho Power would like to call Dr. Don Reading to the stand. DR. DON READING, produced as a witness as the instance of the Joint Applicants, being first duly sworn , was examined and testified as follows: DIRECT EXAMINATION: BY MR. THOMPSON: 131 Are you the same Dr. Don Reading who caused direct testimony with Exhibit No. 201 , your qualifications, to be filed in this proceeding? Yes. Was that pre-filed direct testimony and attached exhibi t prepared by you or under your supervision? Yes. Do you have any corrections or additions to make to your testimony and/or exhibits at this time? Yes, I do.I have a couple of exhibits that support some calculations that are not in the record that need to be in the record. Okay. MR. RICHARDSON:Madam Chair, may I have your permission to approach the witness and Commissioners and hand out exhibits to the parties? COMMISSIONER SMITH:Yes. (MR. RICHARDSON) The first exhibit is entitled on the cover sheet Idaho Power Company s Response to Commission Stats Request for Production No., indicate Case IPC-E-0608. And if that could be marked as Exhibit No. 205 in the record. COMMISSIONER SMITH:Thank you.We will mark this as Exhibit 205. MR. RICHARDSON:And then this second 132 exhibit is titled, Said Exhibit 20, filed in Case No. IPC-E-05-28, page 1 of 79.And I'd ask that it be marked as Exhibit 206 for identification in the record. COMMISSIONER SMITH:Thank you.Exhibi t 206 will be marked for identification. (MR. THOMPSON) Mr. Reading, are there any other additions or corrections that you would like to make? No, there are not. Thank you.Wi th those additions, if I were to ask you the same questions today that you were asked in your pre-filed direct testimony, would your answers be the same? Yes. Thank you. MR. RICHARDSON:With that, Madame Chair , I would move that the pre-filed direct testimony of Dr. Reading be spread upon the record in this matter as if it were read in full and Exhibit 201 and 205 and 206 be identified for the record. COMMISSIONER SMITH:Wi thout obj ection it is so ordered. (The pre-filed direct and rebuttal examination of Dr. Reading has been spread upon the record. 133 PLEASE STATE YOUR NAME AND BUSINESS ADDRESS. My name is Don Reading and my business address is Ben Johnson Associates, 6070 Hill Road, Boise, Idaho. WHAT IS YOUR OCCUPATION? I am a principal with Ben Johnson Associates. HAVE YOU PREPARED AN EXHIBIT OUTLINING YOUR QUALIFICATIONS AND BACKGROUND? Yes. Exhibit No. 201 serves that purpose. ARE YOU SPONSORING ANY OTHER EXHIBITS WITH THIS TESTIMONY? No. WHAT IS THE PURPOSE OF YOUR TESTIMONY IN THIS CASE NO. IPC-O6-08? I have been retained by the Industrial Customers of Idaho Power (ICIP) to review the load growth adjustment rate used in the true-up portion of the Power Cost Adjustment (PCA) methodology. DR. READING, COULD YOU PLEASE GIVE AN OVERVIEW OF THE POLICY DECISION PRESENTED IN THIS CASE FOR THE COMMISSION? Yes. While the specific calculations and applications of the load growth adjustment rate are complex, the policy choice for the Commission is straightforward and easily defined. The basic question being presented to the Commission is whether the calculation of the load growth adjustment rate should be changed from a marginal basis to Reading (Di) ICIP IPC-06- 134 an average basis. The complexity of the mechanism being discussed in the case can tend to cloud this central issue. All parties agree, however, that the load growth adjustment rate is currently based on a marginal analysis. Idaho Power is asking that this be fundamentally changed, and is advocating that the load growth adjustment be calculated on an average- or embedded-cost basis. Other PCA-related issues are not a part of this docket. SINCE THE LOAD GROWTH ADJUSTMENT IS PART OF THE POWER COST ADJUSTMENT, COULD YOU FIRST GIVE A BRIEF HISTORY WASIDAHOPOWER'COST ADJUSTMENTHOWPOWER EST ABLISHED? In 1981 , the Idaho Commission approved setting power supply costs based on multiple hydro years, or normalized conditions. See Case No. U-1006-185. It was assumed this approach would make the Company whole in the long run. However severe droughts followed which caused the Company to file for drought surcharges due to deteriorated hydro conditions. The Commission found this method of dealing with volatile hydro conditions to be undesirable, and the PCA was subsequently developed and implemented. In its Order implementing the PCA the Commission explained Since we adopted the current system of normalization, Idaho Power has requested and received two separate drought related surcharges. . . . We find that the current system of normalizing power supply costs and granting Idaho Power a surcharge during drought years is defective because it is unpredictable and ratepayers do not receive any rate reduction during high water years. . . . (W)hile ratepayers are subject to a surcharge in poor years, they currently do not receive any reduction in rates in high water years leading most customer groups to believe that the current system works to their disadvantage when hydro conditions are good. The PCA we adopt addresses this concern and will produce consumer benefit Reading (Di) ICIP IPC-06- .., 135 in the form of lower rates during years of favorable stream flows. (IPUC Order No. 24806, Case No. IPC-92-, March 1993 , pgs. 4 5). Thus, the PCA mechanism was established as a result of dissatisfaction on the part of the Company s customers and the Commission itself. Its purpose was to create a system where both Idaho Power and its customers would share in the costs and benefits of changes in power supply costs, caused primarily by variations in stream flows, that occur between general rate filings. The PCA looks at year-to-year changes in power supply costs caused primarily by changing water conditions. It is first set on a forward looking basis, then trued up after loads and power costs are known. BY ESTABLISHING A PCA BASED ON ANNUAL CHANGES IN STREAM FLOWS, AND HENCE POWER SUPPLY COSTS, WAS THE COMMISSION ABANDONING THE APPROACH IT TOOK IN 1981 OF NORMALIZING POWER SUPPLY COSTS BASED ON MULTIPLE HYDRO YEARS? No. The Commission stated expressly that it viewed the normalization procedure (basing power supply costs on multiple hydro years) as a valuable tool in setting rates in a general rate case. The PCA mechanism, on the other hand, is a limited exception to the usual reliance on normalization procedure. In adopting the PCA, the Commission explained the limited departure from the multi-year normalization procedure that the PCA represents. The Commission stated We find, therefore, that it is in the best interests of ratepayers and shareholders alike to adopt a PCA for Idaho Power. We emphasize however, that our decision is limited to the unique circumstances of Idaho Power s highly variable power supply costs. While it is difficult for a normalization process to capture these large annual changes, we continue to believe that normalization is a valuable ratemaking methodology for other types of expenses and revenues. Nothing in this Order should be Reading (Di) ICIP IPC-06- 136 construed to the contrary. (IPUC Order No. 24806, pg. 5) (emphasis added). Later, in the same order, the Commission explained the PCA was not intended to substitute for normal prudency review of costs incurred by Idaho Power to serve load growth. The Commission explained We recognize and support the Company s right to recover costs associated with prudent plant additions. Our decision to not allow PCA mechanism to recover costs to offset legitimate plant costs caused by load growth in no way prevents the Company from recovering these costs in traditional ratemaking proceedings. PCA is not intended to replace the prudency review process inherent in general rate case. (IPUC Order No. 24806, pg.20) (emphasis added). Thus, although the Commission believed it appropriate to allow a PCA to modify rates based on large annual changes in power supply costs due to variability in fuel costs (primarily hydro variations), it did not believe that the PCA should become a mechanism through which Idaho Power could avoid traditional ratemaking review of its other costs including costs incurred in order to serve load growth. The PCA is meant to adjust for the change (up or down) in power supply costs each year from those set between rate cases. The cost of generation used to serve additional load, that is, load in addition to the load accounted for in the PCA year, is different from the cost of generation established in a general rate case. It thus represents a different type of cost than that for which the PCA was intended to provide automatic recovery in rates. COULD YOU EXPLAIN BRIEFLY WHAT FUNCTION THE LOAD GROWTH ADJUSTMENT SERVES IN THE PCA MECHANISM? Reading (Di) ICIP IPC-06- 137 A. The load growth adjustment was implemented by the Commission to prevent the Company from double-recovering certain costs under the PCA. (IPUC Order No. 24806). The load growth adjustment factor is used to adjust for power supply costs that the Company has already recovered from customers through their rates. Although new customers (or other new loads) add to Idaho Power s power supply costs over and above those established through rate case normalization procedures, these new customers (or other increased loads) pay Idaho Power s rates for the power they receive. Allowing the Company to automatically recover in the PCA the full costs of serving new load would therefore result in an over-recovery by the Company. In other words, if the PCA were not adjusted to take into account the revenues the Company receives from new customers or increased load, the Company would again receive them automatically in the PCA higher power supply costs. Additionally, since this load growth is on the margin, Idaho Power incurs marginal power generation costs to serve the load. The load growth adjustment also serves the purpose of preventing the Company from automatically recovering the marginal costs of serving new load. As stated above, the marginal costs of serving new load are properly subjected to prudency review in general rate proceedings. HOW DOES THE PCA ADJUST FOR THE POTENTIAL OVER- RECOVERY OF POWER SUPPLY COSTS? Each year the PCA surcharge is established based on normalized Company loads and forecast stream flow conditions that are a significant driver of power supply costs. Because these are simply projections, actual power supply costs for the year will differ from the forecast. The difference between actual and projected power supply Reading (Di) ICIP IPC-06- 138 costs are 'trued-up,' and then become part of the coming year s PCA rate. During the true-up step, the load growth adjustment rate is multiplied by the difference between actual MWh sales and those used as base loads in the PCA original calculation. This amount is then subtracted from the costs that are to be recovered by the PCA surcharge. When the Company s loads are growing, the load growth adjustment results in a reduction of the PCA surcharge. This prevents the PCA from recovering an amount that would represent a double-recovery of the revenues it receives from new loads, and from collecting an amount that would automatically compensate the Company for the marginal costs it incurs to meet new loads. If the Company s loads decrease between the time the PCA is established and the time of the true-up, the load growth adjustment would increase the PCA rate. WASTHISCOMPLEXADJUSTMENTTHAT IMPLEMENTED BY THE COMMISSION IN ESTABLISHING THE PCA SURCHARGE. COULD YOU GIVE AN EXAMPLE TO HELP CLARIFY YOUR EXPLANATION? As stated above, the PCA is set based on assumptions of stream flow conditions and normalized loads.If all of the assumptions that go into the PCA calculations turned out to perfectly match actual conditions and costs, then forecasted power supply costs and actual power supply costs would be exactly the same. However if over the course of the PCA year the Company had experienced load growth or decline such that actual loads differed from what was assumed in the original PCA calculation then actual costs will not match forecasted costs. If loads have increased above forecasts then the costs of serving those loads would have been incurred by the Company and Reading (Di) ICIP IPC-06- 139 power supply costs will be higher than projected. Allowing the Company to collect all of those increased costs through the next year s PCA, however, would result in a double recovery by the Company of significant costs because the new customers (or other sources of increased loads) that came onto the system have already paid the Company rates for the power they have received. Without a load growth adjustment, the extra revenues received due to the increased load would not be accounted for, and the Company would simply collect its increased costs, without an offset for the revenues produced by the increased load. Also, in addition to preventing a double-recovery by the Company of the costs associated with new load, the load growth adjustment prevents the Company from automatically recovering the marginal costs of serving new load.The load growth adjustment currently removes from the PCA the marginal costs of serving new load. If it did not remove these costs, the Company would automatically get them through the PCA and the Commission and Idaho Power s customers would lose the opportunity to be involved in a review of the prudency of those costs. IS IT TRUE NONE OF THE PARTIES ARE REQUESTING THE ELIMINATION OF THE LOAD GROWTH ADJUSTMENT, BUT ARE RATHER PRESENTING DIFFERING METHODS OF HOW IT SHOULD BE DETERMINED? Yes.As stated above, the issue before the Commission in this proceeding is simply whether the load growth adjustment should be calculated based on the marginal costs of serving new load, or whether it should be calculated based on the embedded cost of serving load. Throughout the history of the PCA, the load growth Reading (Di) ICIP IPC-06- 140 adjustment has been based on marginal costs of serving new load. However, Idaho Power is now advocating that it should be based on embedded costs. WHAT ARE SOME OF THE REASONS THE IDAHO COMMISSION RELIED ON WHEN IT ORIGINALLY ADOPTED THE USE OF MARGINAL COSTS RATHER THAN AVERAGE COSTS IN DETERMINING THE LOAD GROWTH ADJUSTMENT? In its Order establishing the PCA mechanism for Idaho Power, the Commission agreed with the Commission Staff s recommendation that the load growth adjustment method be based on marginal costs. The Commission stated We find that the net power supply costs associated with serving differences in load between normal and actual should be removed from the PCA. We adopt the method proposed by the Staff for making this adjustment; it was the only method proposed. We agree with Staff that Idaho Power s proposal unduly broadens the scope ofthis proceeding, which is simply to devise a mechanism for the recovery of power supply costs that include the sum of fuel costs, non-firm energy purchases and CSPP costs less revenues from non-firm energy sales and FMC secondary sales. Idaho Power s proposed PCA allows it to double recover fuel costs associated with load growth which, essentially, offsets the cost of constructing additional plant. (IPUC Order No. 24806, p 20). IN HIS TESTIMONY IN THIS CASE, COMPANY WITNESS MR. SAID IMPLIES THAT THE COMPANY NEVER WEIGHED IN ON WHETHER THE LOAD GROWTH ADJUSTMENT SHOULD BE BASED ON THE MARGINAL OR EMBEDDED COSTS OF SERVING GROWTH.DO YOU BELIEVE THAT THE COMMISSION FAILED TO CONSIDER WHETHER THE LOAD GROWTH ADJUSTMENT SHOULD IN FACT BE BASED ON EMBEDDED COSTS RATHER THAN MARGINAL? No. The full Question and Answer you refer to by Mr. Said is: Reading (Di) ICIP IPC-06- 141 Q. In the original PCA case, did the Company state a position regarding the appropriateness of the Staff proposed load growth adjustment rate? A. No. At the time the PCA was created, the Staff s proposed marginal load growth adjustment rate seemed like a small detail compared to the larger goal of establishing a peA mechanism. It was only after some time had passed that the Company came to realize the impacts of the penalty introduced by setting the load growth adjustment at a marginal level rather than an embedded level. (Direct Testimony of Said, IPC- E- 06-p. 11). However an examination of the record in the original PCA case, as pointed out below, shows that the Commission had an ample opportunity to consider, and decide, on the record that the load growth adjustment should not be based upon embedded average costs. In the original PCA Case the Commission agreed with the marginal approach proposed by Staff. In the current docket the Commission is being asked to re-decide the same issue again. The Commission agreed with its Staff in the original PCA proceeding by ruling that the load growth adjustment should be based on the marginal costs of serving new load. The Commission rejected Idaho Power s proposed approach. It refused to allow the Company to automatically collect the costs it incurs in serving load growth. In surrebuttal testimony in the case establishing the PCA (IPC-92-25), Staff witness Mr. Hessing responded to an example presented by the Company witness Mr. Said of the types of costs Idaho Power incurs in serving load growth. In that example the Company assumed to serve a base load of 100 000 MWh at a cost of $300 000, or $3 per MWh. The Company went on to assume that an increase in load of 10 000 MWh would cost an additional $30 000 , meaning the costs for serving new customers would remain at $3 per MWh. (Said Rebuttal Testimony, IPC-92-, p. 19). Staff witness Hessing answered this Company example by stating, Reading (Di) ICIP IPC-06- 142 Although his example is technically possible it is far from normal. It requires that the Company s resources be operated in an uneconomic manner. The example assumes that 10 000 MWh of additional energy can be supplied in a given situation for the same average cost as the initial 100 000 MWh. Since load growth is served from the marginal resource it will be served at a higher incremental cost than average cost. Thus Mr. Said's example which demonstrates a $3 MWh additional and a $3 per MWh incremental cost is at best an anomaly. (Hessing Surrebuttal, IPe- 92-, p. 5). Thus, Staff made clear its position that Idaho Power incurs higher marginal costs in order to serve load growth and that the load growth adjustment should be based on those marginal costs. Additionally, the record shows that Idaho Power advocated for a PCA that would allow it to automatically collect the marginal costs it incurs in serving new loads. In his Rebuttal Testimony, Idaho Power witness Gail argued that Staff failed to include in the PCA a host of other factors that contribute to the costs of serving new load other than fuel costs. With increasing economic prosperity comes increasing employment and increasing population. Load growth associated with increasing population causes other costs than just variable energy costs. Load growth of this type means new services, line extensions, meters, meter reading, customer service activity, contract construction, and other miscellaneous costs which vary with additional customers. Witness Hessing fails to consider these other incremental costs in his analysis and his recommendation to exclude the power supply expenses associated with load growth from the PCA. (Gail Rebuttal, IPe-92-, p. 14). Thus, as demonstrated by the above quotes, Idaho Power was advocating for a peA that allowed it to automatically recover the costs of serving new load. Commission Staff on the other hand, argued that the marginal costs of serving new load should be removed Reading (Di) ICIP IPC-06- 143 from the PCA, and that those costs were more appropriately part of a general rate proceeding. After reviewing the positions of both the Commission Staff and the Company, this Commission accepted the marginal approach proposed by its staff. The Commission explained in its order adopting the PCA Our decision to not allow a PCA mechanism to recover costs to offset legitimate plant costs caused by load growth in no way prevents the Company from recovering these costs in traditional ratemaking proceedings. A PCA is not intended to replace the prudency review process inherent in general rate case. (IPUC Order 24806 , pg. emphasis added). HAVE YOU REVIEWED THE RECORD AND PARTIES' POSITIONS IN THE ORIGINAL PCA DOCKET? Yes. I have reviewed the record and the positions taken by Idaho Power and the Commission s Staff in the original docket. WHAT, IF ANYTHING, HAS CHANGED SINCE THAT TIME SUCH THAT THE COMMISSION SHOULD REVERSE ITSELF ON THIS ISSUE? Nothing. WHERE DO YOU STAND ON SETTING THE LOAD GROWTH ADJUSTMENT ON A MARGINAL OR AVERAGE BASIS? I agree with the Idaho Commission s decision in the original PCA case to set the load growth adjustment based on the marginal costs of serving new load. The Company s arguments presented in this docket simply rehash an issue settled by the Commission some time ago, when it established the PCA. The underlying reasons for Reading (Di) ICIP IPC-06- 144 setting the load growth adjustment based on the marginal costs of serving new load remain sound and compelling. The Company s proposal in this proceeding to set the load growth adjustment based on an average, embedded-cost basis would fundamentally change the nature of the PCA. WHY IS IT APPROPRIATE TO USE THE MARGINAL APPROACH FOR THE LOAD GROWTH ADJUSTMENT RATE? U sing a load growth adjustment based on the marginal cost of serving new load is the most appropriate method to prevent the Company from automatically recovering too much from the Company s customers under the PCA. Using a marginal cost-based load growth adjustment allows the PCA to achieve its intended purposes, and preserves the prudency review of other costs incurred by the Company to serve new load growth for general rate proceedings. The Commission can best evaluate the prudency of load growth costs in a general rate case, before they are charged to customers. The Company claims in its Application that there is a "mismatch" caused in using the marginal approach for the load growth adjustment because it collects costs at the embedded rate. However, new loads are served by the marginal units in the Company resource stack. These resources are higher cost resources and push up the power supply costs at a greater rate than the average of all the Company s resources. This increment is then reflected in higher power supply costs at the end of the PCA period. It is not a mismatch, then, to use the Company s marginal fuel costs to offset these higher power supply expenses incurred to serve load growth. Contrary to the Company s position, it is important for the load growth adjustment to be based on marginal costs of serving new Reading (Di) ICIP IPC-06- 145 load, so that it can prevent the Company s automatic recouping of those marginal costs without the appropriate prudence review. The Commission established the PCA to account only for annual changes in power costs, caused primarily by stream flow variations. The Commission has clearly stated however, that other costs that may be associated with serving additional load should be adjudicated in a general rate case and not through the PCA mechanism. I agree with the Commission s original position on this issue. The PCA should not become a mechanism through which Idaho Power can automatically recover the costs it incurs in serving new growth. Those costs should be reviewed in a general rate proceeding. PROBLEMS RAISEDARETHEREANYOTHER ALLOWING THE PCA TO BE USED BY IDAHO POWER TO RECOVER COSTS ASSOCIATED WITH LOAD GROWTH? Yes. The PCA moves on a very fast track. It is typically filed in late April or early May, with an effective date of June 1 st. There is not enough time to do a thorough prudency review in that short of a time. We would, in effect, have to turn each PCA into a general rate case, which would defeat the purpose of a PCA. WHAT IS THE CURRENT LOAD GROWTH ADJUSTMENT RATE? The current load growth adjustment rate is $16.84 per MWh. WHAT VALUE FOR THE LOAD GROWTH ADJUSTMENT RATE ARE OTHER PARTIES TO THIS PROCEEDING PROPOSING? A. Idaho Power is proposing that it be decreased to $6.81 per MWh. In the last general rate case that was fully presented to the Commission (IPC-03-13), Commission Reading (Di) ICIP IPC-06- 146 Staff advocated that it should be raised to $29.41 per MWh. The Staff s position has likely changed to reflect higher current marginal costs of serving new load. WHAT VALUE OF LOAD GROWTH ADJUSTMENT ARE YOU ADVOCATING? As stated above, I believe the marginal approach, which is consistent with the Commission s orders, is the correct method to use. Staff, in its calculation, uses the AURORA power supply model and increases loads 10MWa for each hour of the year and then compares that to fuel costs for the base amount and finds the incremental fuel costs. I do not have the AURORA model available and cannot verify its algorithms or input assumptions. However, there are several proxies that can be found that indicate marginal fuel costs for Idaho Power. COULD YOU PLEASE OUTLINE THOSE PROXY MEASURES THAT COULD BE USED AS ESTIMATES FOR MARGINAL FUEL COSTS FOR IDAHO POWER? There are three that come immediately to mind. First, one could use the marginal cost study that the Company uses in general rate cases for rate design, which finds marginal fuel costs. Second, the AURORA model is used to calculate PURP A rates paid to Qualifying Facilities (QFs). The energy portion of the current PURPA rate can be used because it represents marginal fuel costs for the Company. Third, the Company fuel costs of the Company s newest resource, Bennett Mountain, could be used under the assumption that its latest resource is its marginal unit. Reading (Di) ICIP IPC-06- 147 COULD YOU PROVIDE THE VALUES FOR EACH OF THESE PROXY MEASURES OF MARGINAL OR INCREMENTAL FUEL COSTS FOR IDAHO POWER? The Company provided its 2005 Marginal Cost Study in Case IPC-05- 28 (Brilz workpapers). On Schedule 1 of that study the Company lists "Marginal Energy Cost at Service Level: Power Supply" with an annual value of $40.96 per MWh. According to the text of the document, the Company s marginal cost analysis follows the concept and design from the National Economic Research Association (NERA) with input values primarily from their 2004 IRP. The energy portion ofthe current QF rates were set in IPC-04-25. The adjustable portion of that rate for Idaho Power was set at $36.42 per MWh. This value is derived by using the cost of a surrogate avoided plant - in this case a gas combined cycle combustion turbine. The Commission has found this type of plant to be the Company s avoided resource. Therefore its fuel costs are a reasonable proxy for marginal fuel for the Company. For costs of Bennett Mountain, the Commission could refer to page 403 of Idaho Power s 2005 FERC Form 1 , which lists the costs and output for its Bennett Mountain plant over the course of2005. Line 12 shows generation from the facility of 56 222 000 Kwh and line 20 lists the fuel expense at $2 744 349. Dividing output by fuel expense yields 4.881 cents per Kwh or $48.81 per MWh. Since Bennett Mountain is the last resource brought on line by Idaho Power, it is its marginal unit and its fuel costs are the Company s marginal fuel cost. Reading (Di) ICIP IPC-06- 148 Marginal fuel costs found for these three proxies are relatively close and range from $36.42 to $48.81 per MWh. They are, of course, very different from the $6. advocated by the Company based on an embedded approach. What is clear is that the Company s marginal fuel costs to serve new load centers around $40 per MWh. Without the use of the AURORA model, I would recommend the use of the Company s latest marginal cost study that yields $40.96 per MWh as the value to be used for the load growth adjustment. It is based on an accepted marginal cost methodology and adjusts for line losses. Any of the proxies or the results ofthe AURORA model would be acceptable. The important decision is that a marginal approach be used for estimating the value of the load growth adjustment. YOU STATED ABOVE THAT THE COMMISSION'S STAFF HAS CALCULATED THE LOAD GROWTH ADJUSTMENT BY RUNNING AURORA WITH A LOAD INCREASE OF 10 AVERAGE MW FOR EVERY HOUR. DO YOU KNOW WHAT THIS APPROACH YIELDS? The Commission Staff asked Idaho Power to perform an AURORA model run with the same 10 aMW load increase. (Response to Request No., First Production Request of Staff). The results indicate power supply costs $3 578 900 higher than the base amount filed in the Company s last rate case (IPC-05-, Exhibit 20). This means the marginal cost of power supply for the Company is $40.86 per MWh. (3578900/87600). This value is essentially the same level as that found in the Company marginal cost study that I recommended to use as the load growth adjustment above. Reading (Di) ICIP IPC-06- 149 VISTA ALSO HAS A POWER COST ADJUSTMENT MECHANISM. DO YOU KNOW IF THEY USE A LOAD GROWTH ADJUSTMENT, AND IF IT IS SET ON A MARGINAL ENERGY COST BASIS? The Commission does use the marginal cost of generation in adjusting for load growth in Avista s power cost adjustment. According to page 46 ofthe Commission s Order No. 29602 in Case No. A VU-04-, the current level is $36. dollars per MWh. DO YOU HAVE ANY ADDITIONAL COMMENTS FOR THE COMMISSION THAT DEAL WITH THE LOAD GROWTH ADJUSTMENT? Yes. The load growth adjustment is a "two-edged sword.That is when loads are growing, the adjustment reduces the level of the PCA surcharge. Conversely, when loads decrease, the load growth adjustment will increase the PCA rate over what it would otherwise be. The load growth adjustment is comprised of two components: 1) the estimate of fuel value, and 2) the change in loads. The Company is advocating a significant lowering of the value of the load growth adjustment. Should the Company embark on an aggressive conservation program it potentially could reduce load growth. In that case a high load growth adjustment value would tend to increase the peA surcharge and allow the Company to charge higher rates. At a minimum, load growth could be moderated and the impact of the load growth adjustment would be lessened. This fact logically fits with the marginal approach originally approved by the Commission. To the extent that the Company can avoid using its higher cost units, the greater the savings in power supply costs, and therefore a smaller offset is needed. Reading (Di) ICIP IPC-06- 150 DOES THIS CONCLUDE YOUR TESTIMONY? Yes, it does. Reading (Di) ICIP IPC-06- - 19 - Present position Education Professional and business history Don C. Reading 151 Exhibit No. 201 IPC - E-O6- ICIP Don C. Reading Consulting Economist with Ben Johnson Associates, Inc. , Economics - Utah State University , Economics - University of Oregon Ph., Economics - Utah State University Idaho Public Utilities Commission: 1981-86 Economist/Director of Policy and Administration Teaching: 1980-81 Associate Professor, University of Hawaii-Hilo 1970-80 Associate and Assistant Professor, Idaho State University 1968-70 Assistant Professor, Middle Tennessee State University Dr. Reading provides expert testimony concerning economic and regulatory issues. He has testified on more than 25 occasions before utility regulatory commissions in Alaska, California, Colorado , the District of Columbia, Idaho , Nevada, Texas, Utah , and Washington. His areas of expertise include demand forecasting, long-range planning, price elasticity, marginal pricing, production-simulation modeling, and econometric modeling. He has also provided expert testimony in cases concerning loss of income resulting from wrongful death , injury, or employment discrimination. Dr. Reading has more than 30 years experience in the field of economics. He has participated in the development of indices reflecting economic trends , GNP growth rates , foreign exchange markets, the money supply, stockmarket levels, and inflation. He has analyzed such public policy issues as the minimum wage , federal spending and taxation , and import/export balances. Dr. Reading is one of four economists providing yearly forecasts of statewide personal income to the State of Idaho for purposes of establishing state personal income tax rates. Dr. Reading s areas of expertise in the field of energy include demand forecasting, long-range planning, price elasticity, marginal and average cost pricing, production-simulation modeling, and econometric modeling. Among his recent cases was an electric rate design analysis for the Industrial Customers of Idaho Power. While at Idaho State University, Dr. Reading performed demographic studies using a cohort/survival model and several economic impact 152 Don C. Reading Exhibit No. 201 IPC - E-O6- ICIP studies using input/output analysis. He has also provided expert testimony in cases concerning loss of income resulting from wrongful death , injury, or employment discrimination. Among Dr. Reading s current projects are a FERC hydropower relicensing study (for the Skokomish Indian Tribe) and an analysis of Northern States Power s North Dakota rate design proposals affecting large industrial customers (for J.R. Simplot Company). Dr. Reading has also recently completed an analysis for the Idaho Governor s Office of the impact on the Northwest Power Grid of various plans to increase salmon runs in the Columbia River Basin. Publications The Economic Impact of Steel head Fishing and the Return of Salmon Fishing in Idaho, Idaho Fish and Wildlife Foundation, September, 1997. Cost Savings from Nuclear Regulatory Reform , Southern Economic Journal , March , 1997 , with R. Canterbery and B. Johnson. A Visitor Analysis for a Birds of Prey Public Attraction, Peregrine Fund Inc., November, 1988. Investigation of a Capitalization Rate for Idaho Hydroelectric Projects Idaho State Tax Commission, June, 1988. Post-PURPA Views " In Proceedings of the NARUC Biennial Regulatory Conference, 1983. An Input-Output Analysis of the Impact from Proposed Mining in the Challis Area (with R. Davies). Public Policy Research Center, Idaho State University, February 1980. Phosphate and Southeast: A Socio Economic Analysis (with J. Eyre, et al). Government Research Institute of Idaho State University and the Southeast Idaho Council of Governments, August 1975. Estimating General Fund Revenues of the State of Idaho (with S. Ghazanfar and D. Holley). Center for Business and Economic Research Boise State University, June 1975. A Note on the Distribution of Federal Expenditures: An Interstate Comparison , 1933-1939 and 1961-1965." In The American Economist Vol. XVIII , No.2 (Fall 1974), pp. 125-128. New Deal Activity and the States, 1933-1939." In Journal of Economic History, Vol. XXXIII (December 1973), pp. 792-810. 153 - 167 THIS PAGES INTENTIONALLY LEFT BLANK 168 Dr. Reading isMR. RICHARDSON:Thank you. now available for cross-examination. COMMISSIONER SMITH:Thank you. Mr. Eddie, do you have any questions? I do not have any questions.MR. EDDIE: COMMISSIONER SMITH:Mr. Woodbury? Thank you, Madam Chair.MR. WOODBURY: CROSS-EXAMINATION BY MR. WOODBURY: Good afternoon , Dr. Reading.On page 8 of your testimony, you identified the issue before the Commission as whether the load growth adjustment should be calculated based on the marginal costs of serving new loads or based on the embedded cost of serving loads. When -- with respect to the embedded cost, you are talking about for existing customers as opposed to new load and distinguishing between those two? That would be for new load. Okay.If the intent of the Commission was that power supply costs associated with changes in load be factored out of the PCA as evidenced from their order language, is that intent best accomplished by a load growth adj ustment based on an embedded cost or marginal cost? 169 As I stated in my testimony, I believe marginal cost as I interpreted the Commission s original intent. Is it your understanding that the Commission uses historic test years in Idaho Power s general rate cases? Yes. And by historic test years, is the Company between rate cases restricted to recovering just it's historic normalized costs embedded in rates? Yes. Isn t tracking growth-related power supply costs through the PCA contrary to the purpose of using a historic rather than a forecasted test year? I think I heard a phrase there.Could you repeat? Would you repeat the question, please? Isn t tracking growth-related power supply cost through the PCA contrary to the purpose of using a historic rather than a forecasted test year? I guess I would answer that as saying it is addendum As explained in the Commission s original order, whento it. the Commission went to making rates on a normalized test year you know , taking the average of 64 or 78 or whatever the number of water years was at that particular time -- they recognized, as has been discussed here earlier, that Idaho Power s resources were sufficiently impacted by changes in snow pack and stream flow; that it would be more equitable to the Company and the 170 customers to have an adj ustment between rate cases for those changes in stream flows.So I don t think it's contrary, I think it's a recognition of the kind of resources and the kind of utility Idaho Power is to treat both the Company and the customers more fairly. Than k you. MR. WOODBURY:Madam Chair , no further questions. COMMISSIONER SMITH:Mr. Kline? MR. KLINE:Thank you, Madam Chair. CROSS- EXAMINAT ION BY MR. KLINE: Dr. Reading, I would like to direct your attention to page 16 of your testimony.And on page 16 you discusses three proXles that you are recommending for a way of measuring marginal costs; is that correct? I think I've picked the marginal cost studies byYes. the Company as the preferred of the , but Yeah. -- there are three ways to do it. m sorry.You mentioned three, and we have already discussed the first and the third, so I just want to talk about the second one.In your second proxy, you propose to use the 171 adjustable portion of Idaho Power s avoided costs for the surrogate of water resource; is that correct? Yeah.That would be a method that could be used. And it's your second proxy; correct? Right.I guess if I had to rank them , I would put it in third place. The adj ustable portion that we re talking about here is based on the fuel and variable OLM costs for the surrogate-avoided resource, which is currently a combined cycle combustion turban; correct? Yes. And a combined-cycle combustion turbine, of course, is a base load resource, is it not? Yes. And Idaho Power has not constructed a combined-cycle combustion turbo; is that correct? That's correct.And that's one of the reasons I put it in third place. In the past the Commission has used a coal-fired plant as the surrogate avoided resources, have they not? Yes. If the next surrogate avoided resource that the Commission chooses is a coal plant, and it has the typical coal plant fuel cost of around $15-17 , I take it from your testimony you would still think that was the good proxy for Idaho Power 172 marginal cost? It would be a reasonable proxy for those kinds of As I said I would pick it as the third unit -- theplants. I guess I would add if it's the marginal plantthird choice. that the utility is constructing. MR. KLINE:That's all I've got. Do you have questions fromCOMMISSIONER SMITH: the Commission? COMMISSIONER HANSEN:No. COMMISSIONER KJELLANDER:No. Any redirect?COMMISSIONER SMITH: I don t, Madam Chair.Thank you,MR. THOMPSON: Dr. Reading. The Northwest Energy Coalition willMR. EDDIE: call Peter Weiss. PETER WEISS, produced as a witness as the instance of the Joint Applicants, being first duly sworn, was examined and testified as follows: DIRECT EXAMINATION BY MR. EDDIE: Mr. Weiss, will you state your name and spell your last name for the record, please? 173 Steven Weiss, W- E- I -S-S. Madam Chair, with yourMR. EDDIE: indulgence I would ask that you spread the testimony, the direct and rebuttal, of Mr. Weiss. COMMISSIONER SMITH:(Nods head. Are you the same Steven Weiss that caused to be filed 16 pages of direct testimony together with two exhibits in this case? Yes. Wi th respect to the direct testimony that you filed, do you have any supplemental comments or changes you would like to make at this time? Throughout this testimony, I have used examplesYes. of rates and prices and so on starting on page 6 of my direct And I just want to make it clear that first of all,testimony. the rate that I used, the 6.5 cents for the residential rate, as was pointed out in rebuttal by Mr. Said, probably was too high. I was reading -- I included the customer charge -- fixed customer charge.But I just want to make it clear that the numbers I am using in my entire testimony are just illustrative And that whether it's 6.5 or 6.1 or as was said hereexamples. 9 I think was the average because there is a summer and winter rate, doesn t really for the point of my discussion.These are illustrative examples.If the Commission was to accept our recommendations, they would have round them in actual numbers. 174 Is it fair to say that you (inaudible) to the Commission , and the figures are simply illustrative of that? Yes. And do these changes affect your recommendation to the Commission here? No. Did you also cause to be pre-filed in this caseOkay. six pages of rebuttal testimony together with one exhibit? And you have no changes that testimony at this time? No. Madam Chair, with that I moveMR. EDDIE: that the direct and rebuttal testimony of Steven Weiss be spread upon the record as well as Exhibits 301 , 302, and 303 be marked for identification. COMMISSIONER SMITH:Is there any objections? (No response. If not, it is so spreadCOMMISSIONER SMITH: and the exhibits marked for identification. (The following pre-filed direct testimony of Steven Weiss is spread upon the record. .., 175 PLEASE STATE YOUR NAME AND BUSINESS ADDRESS. My name is Steven Weiss. I am employed by the NW Energy Coalition, 219 First Ave. South, Suite 100, Seattle, W A 98104. WHAT ARE YOUR POSITION AND RESPONSIBILITIES? I am a Senior Policy Associate and frequently represent the Coalition in regulatory proceedings with the Bonneville Power Administration and in the State of Oregon. I am also an advocate for clean and affordable energy in many other forums including the NW Power and Conservation Council, Columbia Grid and the Oregon Legislature. PLEASE SUMMARIZE YOUR EDUCATIONAL BACKGROUND AND PROFESSIONAL EXPERIENCE. I received a Masters in Science Education from Bucknell University in 1976 and Bachelor of Arts in Physics and Math from the University of California at Berkeley in 1968. Previous professional experience includes employment as Assistant Professor at Clarion State College in Pennsylvania from 1975-, and I was elected to the Board of Salem Electric (Co-op) four times from 1982-94. I also owned and operated a retail bicycle shop from 1980-96. I have been employed by the Coalition since 1994 and have participated in numerous Oregon, BP A and regional policy forums and rate cases. I also co-authored Oregon s electricity restructuring law (SB 1149). My resume is included as Exhibit 301. Weiss, Steven - Dl NW Energy Coalition 176 HA VE YOU APPEARED BEFORE UTILITY REGULATORY COMMISSIONS IN OTHER PROCEEDINGS? Yes, I have represented the Coalition in numerous dockets, including rulemakings. Examples in Oregon include Northwest Natural's filings regarding its Weather Adjusted Rate Mechanism (UG 152) and decoupling (UG 143), POliland General Electric s decoupling filing (UE 126), and Cascade Natural Gas Corporation Conservation Alliance Plan, inclusive of a decoupling mechanism (UG 167). In Washington, I served as a witness for the Coalition in the 2004 Puget Sound Energy (PSE) rate case , focusing on rate design issues; and in the ongoing PSE gas decoupling rate case (UG-060267 & UE-060266). Also I have represented the Coalition in ~1lImerous Integrated Resource Planning Processes, as well as at workshops and conferences over the past dozen years. PLEASE SUMMARIZE THE CONTENTS OF YOUR TESTIMONY. My testimony is arranged as follows: (1) I first discuss how traditional ratemaking impacts the utility s (and customers ) incentives and risks between rate cases. (2) Second I describe the effect on Idaho Power s net revenues resulting from each new kWh and each new customer hookup. (3) I then discuss how the policy implications of the peA cannot be discussed in a vacuum. On this point, I believe the peA issues at stake here are linked to the outcome of the decoupling proposal in IPC- E-04-l5 (a proposal that essentially guarantees that Idaho Power s recovery of fixed costs for existing customers regardless of changes in their loads, and would allow the Company s fixed cost recovery to grow along with growth in customer numbers). (4) . Finally, I will make a proposal that, assuming a decoupling mechanism is approved in Weiss, Steven - Di NW Energy Coalition .., 177 IPC-04-, will lead to a revenue-neutral proposal regarding new customer numbers while providing an incentive for IPC to encourage reduced usage per customer. By modifying Idaho Power s proposal in this case, and approving a decoupling mechanism in IPC-04-, the Commission would both maintain traditional shared risks, while also creating a strong incentive for the utility to fully obtain and advocate for conservation and efficiency improvements, which are by far the least-cost resources available to customers. Cunently Idaho Power likely enjoys net positive revenues from load growth, providing both a disincentive to the Company to promote conservation and an unwarranted windfall unrelated to its actions. To reflect that fact in the peA, a Load Growth Adjustment must be added but the methodology must be different than presently used. The scope of my testimony does not include a specific recommended amount, but does provide an example of how that could be developed. I. Traditional Ratemaking WHAT INCENTIVES AND DISINCENTIVES ARE EMBEDDED IN TRADITIONAL UTILITY REGULATION AND WHAT EFFECT DO THEY HA VE? Utilities have traditionally been regulated based on their costs, including an opportunity to earn a reasonable rate of return. In periodic rate cases, a review of revenue and cost levels occurs , and rates determined such that the utility can earn that rate of return. But just as important an element of regulation is how the rate structure and any trackers, affects the Company betvveen rate cases. This is known as Regulatory Lag. For it is between rate cases that any reduction in costs and/or Weiss, Steven - Di NW Energy Coalition .., 178 increase in revenues go straight to the utility s bottom line. Thus the incentives provided by the rate structllre are important motivators for utility actions. Regulatory lag, in my opinion, is one of the most imp0l1ant considerations regulators should be aware of when designing or approving rates. On the cost side regulatory lag is largely beneficial for customers because it provides the utility the incentive to reduce costs and improve productivity, which are then incorporated into lower,rates.in the next rate case.' But on the revenue side, the issue is more complicated. That is because regulatory lag can produce utility incentives that are at cross-purposes with customer interests, promote unabated load growth and lead ultimately to higher costs. WHAT FACTORS INFLUENCE REVENUES BETWEEN RATE CASES? Broadly, two factors are important: (a) changes in revenue per customer from load changes; and, (b) changes in the number of customers. To understand the utility incentives, it is necessary to determine what the financial impact to the utility is from increases or decreases in these two factors. Revenue per customer between rate cases has two determinants: First is change in usage per cust0l11,er multiplied by the marginal rate for that customer. Second is change in the number of customers. All ratemaIeing regulation provides utilities with incentives or disincentives to behave in a certain manner. By focusing on how the addition (or reduction) of one Ie Wh of load or one new customer affects the utility s bottom line between rate cases one can describe those incentives and disincentives. In addition, one can see if the rate structure causes undeserved increases or decreases in a utility s net revenues that I This is not an unalloyed benefit. Many regulators also require utilities to have in place strong service quality and reliability standards to ensure that cost-cutting is not over done. Weiss, Steven - Di NW Energy Coalition 179 are unrelated to the utility s actions. Such a result is simply an undeserved loss or windfall to the utility, and even if symmetric (i., equally likely to benefit shareholders or customers over the long term) may increase net revenue volatility unnecessarily.2 Ideally, utilities should be rewarded based on how well they meet their customers ' energy service needs , but that is not always the case. Sometimes the utility s incentive is to encourage load growth even though cost-effective conservation would be less costly to customers. (This issue is thoroughly covered in the decoupling discussion in IPC-04-, so I will not repeat it here.) And sometimes the utility is rewarded or punished with windfall profits or losses unrelated to its activities. Thus it is impOliant to examine the issue closely in order to have a result that is fair to all parties and in the public interest II. The Effect of Marginal Changes in Load and Customer Count WHAT HAPPENS TO IPC'S NET REVENUES UNDER CURRENT POLICY WHEN LOAD INCREASES BY 1 KWH? For this discussion, I first assume that this increase in load is not accompanied by a higher customer count and that it is a residential load (and, of course, decoupling has not been implemented). Perhaps someone adds a battery charger after the rate case has set load levels. Below I address a scenario where the load groWth occurs from the addition of a customer. 2 For example, changes in weather, totally out of the utility s control, can produce volatility in its returns that serve no purpose other than simply raising its cost of capital-a co:,t that must eventually be paid by customers. A weathel' decoupling mechanism , however, can reduce that volatility. Weiss, Steven - Dl NW Energy Coalition 180 A number of things determine how much IPC's net revenue changes. First, its revenues increase by about 6.5~, because that is how much extra the customer pays for the kWh.3 But its costs also increase, and this is where it gets a little complicated. To serve this new load, Idaho Power must either purchase the electricity from the market (or forego the same amount of money from reduced sales). Let's assume for discussion a market price of 4~ ($40IMWh-note: all prices per MWH have been converted to cents/kWh in this discussion). While a portion of those costs would covered by the peA, I will put aside the peA for the moment and focus on what it really costs the Company. . In addition to the 4~ for additional power, the Company also incurs some incremental "fixed" costs. While the embedded costs of its hydro and coal facilities won t change, each additional increment of load will incur an incremental cost for additional O&M, bigger or more numerous transformers, substations, etc., that kWh's share if incremental distribution costs. But, for the most part, these distribution costs will not increase between rate cases , especially in this scenario where the load growth is not associated with a new customer. The system is built robustly enough that incremental load growth in existing neighborhoods will not increase distribution and O&M costs much. The "robustness" (i.e. the headroom available to accommodate load growth) has already been included in the capital costs of the system, which will not change. Larger distribution costs, such as new substatioi1s and larger transformers may eventually be needed if average loads increase substantially, but their costs will be added into rate base at the next rate case. 3 I have assumed that the additional kWh is priced at the higher, marginal block rate. Weiss, Steven - Di NW Energy Coalition 181 So though I camlOt precisely say how much new distribution costs the new kWh will cause, it lllost likely is less than 5t. An exact number is not important for my point. My point is that it is very likely that the costs of serving the new kWh will not match the added revenue from that kWh. In my example, the additional costs totaled 5t while the additional revenue was 5t. In this likely situation, the Company will see an increase in its net revenue of2t and thus have a powerful incentive to encourage increased load and to be less-than-enthusiastic about conservation. WHAT HAPPENS TO IDAHO POWER'S NET REVENUES WHEN IT ADDS A NEW CUSTOMER? I will assume for this example that this is a residential customer, and his or her load is exactly the same as the average of all other customers. This customer s load also pays about 5t for each kWh. (Not exactly true due to Idaho Power s 2-block rate plus the customer charge, but close enough for this discussion.) For each kWh used by this customer, Idaho Power s power cost is about 4t as in the previous example. But because this is a new hook-up, the Company added distribution costs are higher than in that case. The Company has to string wire install a new meter and perhaps a (pOliion of) a new transformer-all between rate cases. Ignoring any construction costs paid by the new customer due to IPC's line extension policy, perhaps this costs 2t per kwh for the average new customer. IPC therefore receives 5t in net revenues. So now, the mismatch between cost and revenue is less than the first scenario (0.5t on each new kWh compared to 2t). That would reduce the utility s incentive to increase loads from new customers compared to the previous example, but it would still exist. Weiss, Steven - Di NW Energy Coalition 182 PLEASE SUMMARIZE YOUR CONCLUSION THUS FAR. Putting aside regulatory treatment of all this, I draw two conclusions. (a) If the incremental cost of increased load or increased customers does not match the incremental net revenue produced, the utility will have incentives that mayor may not be in the public interest; and, (b) the critical numbers one must look out to understand what is really happening are the incremental costs (and revenues) of new load and new customers , not the embedded costs. PLEASE EXPLAIN THE CURRENT REGULATORY TREATMENT OF THE TWO SCENARIOS DISCUSSED ABOVE. The two regulatory mechanisms that bear on this issue are the PCA and any decoupling mechanism that might be approved. I will stmi with the peA. The first thing to point out is that the peA is not affected by customer count. Therefore the peA impact is the same for any increase in load regardless of whether it came from an existing or new customer--'-the PCA only adjusts the power cost impact, but does not address the different distribution cost impacts of the two scenarios. Therefore, the PCA cannot provide an appropriate regulatory impact for both scenarios at the same time, since the peA treats these two scenarios-though they have quite different net revenue impacts - as if they were the same. Second, the PCA formula depends on embedded costs. The added base rate revenue from each additional kWh is pmotly allocated toward peA costs (about 0.7~ and the rest to non- peA costs). Yet it is clear that the incremental power cost to serve the new load is higher, in the 4~ or more range, and the incremental fixed cost is different in the two scenarios (and certainly much less than the embedded fixed cost). Weiss, Steven - Di NW Energy Coalition 183 In short, the PCA adjustment is not linked to the actual incremental changes in costs and revenues that I went through above. Only by extraordinary luck could it avoid a result that either rewards or punishes IPC for new loads and/or new customers due to the almost inevitable mismatch between the increll1ental costs and revenues that result from growing loads. The result-ei'ther a reward or a penalty-becomes the incentive to either encourage or discourage load growth. I believe it is poor public policy to have this key result driven by the arbitrary and essentially random differences between the incremental costs of serving new loads and customers. Currently the PCA reduces the amount the utility can recover from its additional power costs by abotlt 1~/kwh (using the current $16.84/MWh load growth adjustment minus the $6.71/MWh embedded peA cost). Gregory Said's direct testimony (p. 12) describes a "penalty" of around 1.16~/kWh using older numbers but the calculation is the same. As I estimated above, without the peA the Company s actual net revenues increase by 2~/kWh for load growth of existing customers, so including the PCA would probably result in the Company still having a positive incentive of 1 ~/kWh to increase load. But for new customers, the PCA would penalize the Company through a net revenue loss of 0.5~/kWh. Clearly this is a bizarre result. IPC is proposing to remove this "penalty," which would 'mean all load growth would benefit the Company. DO YOU AGREE WITH THE CaMP ANY THAT THE PRESENT peA PENALIZES IDAHO POWER FOR LOAD GROWTH? Seen in isolation, it would seem that way. However, the peA only deals with the cost of new power, not the cost of incremental distribution nor the effect of increased Weiss, Steven - Di NW Energy Coalition 184 revenue. In addition there is another reason to suspect that it is not really a penalty. If it really were true that the Company was not allowed to recover a significant amount of money because of load growth, one would expect it to be aggressively pursuing conservation. Sadly, that is not really the case. DOES IDAHO POWER'S INVESTMENT IN DEMAND-SIDE MANAGEMENT OVER THE LAST DECADE EVINCE A COMPANY THAT SUFFERS A PENALTY FROM GROWING LOADS? No. Idaho Power has been very slow to implement demand-side management, even in the face of growing loads. Idaho Power s system load in its 1994 rate case was about 14.5 million MWh's. The Company s system load increased over the next six (6) years up to a high point of about 15.8 million MWh's in 2000-2001. Over that same six (6) year period, Idaho Power s spending on demand-side management dropped precipitously from about $6.19 million in 1995 down to about $1.7 million in 2000 and 2001. In response to the energy crisis of 2000-0 1 , system loads dropped before resuming their growth. See Exhibits 302 at pages 2, 5 (Idaho Power Response to Production Requests). WHY DO YOU BELIEVE THOSE FACTS ARE IMPORTANT? The fact that Idaho Power dis-invested in DSM in the late 1990's in the face of growing loads indicates that the Company is not penalized enough by the Load Growth Adjustment in the peA, as indicated in the Direct Testimony of Gregory Said (page 12)to overcome the underlying marginal increase in the net revenues it receives from adding load. If there was a detectable penalty in the peA (as part of Idaho Power s overall rate design), the Company was behaving irrationally. Weiss, Steven - Di NW Energy Coalition 185 IS IDAHO POWER INVESTING IN ENOUGH DSM TODAY? NW Energy Coalition believes the Idaho Power is rapidly improving its DSM program. I understand that the Company s draft 2006 Integrated Resource Plan proposes to further accelerate DSM program investments nearly up to the approximately levels ofDSM potential estimated by the NOlihwest Power and Conservation Council in 2004. That said, the Company s actually estimated savings are still very low (3.25 MWa in 2004, and 4.71 MWa in 2005 , both including estimated savings from programs run by Northwest Energy Efficiency Alliance). Exhibit 302 at page 9. I am certain those savings will accelerate rapidly in coming years, but they are still low compared to other Northwest utilities. It is NW Energy Coalition s position that all cost-effective DSM resources should be acquired before supply resources are acquired. Very simply, there is no easier, cheaper, or cleaner way to keep both rates and customer bills low. GIVEN THIS WEAK RECORD ON CONSERVATION, IS THE COMPANY BEHAVING IRRATIONALLY? No. As I noted above, even with the PCA's "penalty," the Company likely has an incentive to promote load growth, especially by existing customers. Therefore it is serving its shareholders well by having a lukewarm attitude toward conservation even though it is compensated completely for its conservation costs. WHAT IS YOUR CONCLUSION REGARDING THE PCA? The PCA, as presently designed, can never result in rates that are exactly "right" in balancing the impact of new load on the Company. But because of that mismatch, it is never neutral. Instead it provides an incentive (for or against load growth) Weiss, Steven - Di NW Energy Coalition 186 depending on the level of the load growth adjustment. If the Commission wishes to provide Idaho Power an incentive toward conservation by providing a penalty, it should do so directly. I do not believe the Commission should address this impOliant policy issue obliquely through the load growth adjustment. WHAT WOULD BE A BETTER DESIGN FOR A PCA ADJUSTMENT? A better design would be ensure the peA has a neutral impact by reflecting as close as possible the actual incremental changes in costs and revenues that load growth and new customer growth creates. That is, the PCA should reimburse the Company for (90% 4 of) the incremental cost of new power, less the incremental revenues received from the customer, rather than relying on embedded costs that have little relation to the actual net revenue impacts. That calculation would necessarily be different for the two scenarios examined-load growth from existing customers versus load growth from new customers-because they have different incremental revenues. Therefore there would be two different peA adjustments: one for load growth from existing customers, and the other for load growth from new customers.This design is neutral to the Company in that it does not provide any incentive or disincentive to encourage load growth. If the Commission wishes to provide an incentive for the Company to reduce load growth, it should do so directly, and not rely upon this opaque mechanism to achieve that policy result. IS YOUR SUGGESTION FOR MANY DIFFERENT ADJUSTMENT FACTORS TOO COMPLICATED? 4 If the Commission wishes to provide a stronger incentive to the Company to make smmi purchases between ratecases, it could lower this percentage.s These two would apply to residential customers. Different adjustments would also have be used for the other customer classes. Weiss , Steven - Di NW Energy Coalition .., 187 I don t believe that two factors for each customer class is all that complicated. However, a second best solution is to set the load growth adjustment rate such that the PCA results in an adjustment that reflects the average incremental change that load growth causes for each class, and not differentiate between new and existing customers. There should still be a different adjustment for each other customer class however, as the incremental cost changes for commercial and industrial load increases are quite different than for residential customers. COULD YOU PROVIDE AN EXAMPLE USING THE NUMBERS YOU HAVE BEEN USING SO FAR? Yes. Please note that this example does not assume a decoupling adjustment. I assumed that a new kWh to serve an existing residential customer was acquired at a cost of 4~. That new kWh produced incremental revenues for the Company of 6~ (rate of 6.5~ minus the incremental increase in distribution costs of 0.5~). Without a PCA, the utility would enjoy a windfall of2~. Therefore the load growth adjustment must be set at a level that produces a refund to customers of 2~ (this would calculate to $26.71/MWh, or $20/MWh plus the $6.71/MWh embedded peA amount). Using this amount as the adjustment makes the Company neutral in regard to load groWth from existing customers. A different load groWth adjustment can similarly be designed for the case of load growth due to a new customer hoohlP. Using my example, it would be $11.71 ($5 + $6.71). COULD THE COMMISSION USE YOUR DESIGN TO SHIFT LOAD GROWTH RISK TO THE COMPANY? Weiss, Steven - Di NW Energy Coalition 188 15. Yes. If the Commission wanted the PCA to provide a stronger incentive to the utility for pursuing conservation, it could raise the load growth adjustment higher so as to penalize the company when load growth occurs. Another effective way to motivate the Company that we favor is to set concrete DSM targets and benchmarks connected to rewards and penalties. THE SECOND MECHANISM THAT HAS AN IMP ACT ON THIS ISSUE IS DECOUPLING. HOW DOES DECOUPLING AFFECT THE TWO SCENARIOS? While the peA addresses changes in power costs between rate cases, decoupling addresses changes in fixed costs. Under the decoupling proposal being discllssed in IPC-04-, revenue changes between rate cases resulting from loads being higher or lower than normal for existing customers are adjusted to provide the Company with the same embedded fixed costs per customer as approved in the most recent rate case. As such, the mechanism is neutral in relation to existing customers and provides neither an incentive nor disincentive for IPC to encourage load growth (or promote conservation). In addition, the proposed decoupling mechanism would also maintain that same average level of embedded non-power related costs for new load created by new hookups regardless of their usage level. However, the incremental non-power costs of serving a new customer are most likely lower than the embedded cost imputed to existing customers of about 3.25~/kwh.6 That is because the incremental cost of serving a new customer is just the cost of additional distribution. There is no additional impact to the other embedded costs of the system such as 6 The non-power costs of about $138 million are divided into average usage of about 4.5 billion kWh. I obtained these figures from the direct testimony of Mike Youngblood in the decoupling docket (IPC-O4-15) pp. 14-J 6. Weiss, Steven - 01 NW Energy Coalition 189 generation costs and other debt. Thus, the Company will receive a windfall from new customers (regardless of their usage) by recovering average embedded fixed costs rather than the much smaller incremental amount. So while the mechanism does indeed remove the incentive to encourage load growth, it is not neutral. It provides an incentive to hook up more customers. (A discussion of whether or not this is a desired outcome is not part of this proceeding, however.) MODIFYING THE DECOUPLING PROPOSAL IS NOT A SUBJECT OF THIS DOCKET, HOW IS IT RELEVANT TO THIS DISCUSSION? It is important for the Commission to understand the coill1ection between the peA discussion and the decoupling discussion. The incentive the Company will see, and the overall fairness of the rates, depends on how they are both designed. In summary, it is necessary to look at the complete package. It is impossible to understand how the PCA and decoupling mechanisms will reward or penalize Idaho Power for pursuing and encouraging conservation without looking at their combined effects on marginal changes in load. DOES THE COALITION HAVE A RECOMMENDATION? Yes. We recommend that the peA be redesigned so that it is based on the different incremental costs of load growth caused by existing customers versus load growth caused by new customers, thus making it neutral to the Company and customers. In the alternative, the load growth adjustment should be set to come as close to that result as possible. I have provided an example of how that could be done. All thatis missing to do the calculation are estimates of the incremental Weiss, Steven - Di NW Energy Coalition 190 costs of serving new load and new customers based on Idaho Power s system data. Staff and the Company are best equipped to identify those numbers. To provide the Company with a clear incentive to encourage conservation: (a) decoupling should be approved in order to remove the disincentive on the revenue side; and, (b) either: (i) raise the load growth adjustment another $10. or so from the number determined in #1 above to pl'ovide a clear incentive for conservation; or, (ii) use direct conservation targets and benchmarks with incentives and penalties. DOES THIS CONCLUDE YOUR TESTIMONY? Yes. Weiss, Steven - Di NW Energy Coalition Current Position Experience 191 Steven Weiss Senior Policy Associate, NW Energy Coalition 1995 - Present NW Energy Coalition Senior Policy Associate Sr. member of the policy team implementing NWEC's policy goals relating to a clean and affordable energy future. Areas of responsibility include Bonneville Power Administration, Oregon PUC Oregon Legislature, NW Power Planning Council, Grid West/Columbia Grid" Oregon Advisory Committee on Energy (low-income issues), occasional DC lobbying. Seattle, WA 1993-1995 Clients: NW Energy Coalition, OR Dept. of Energy, W A Utilities and Transportation Commission Consultant Policy development and advocacy on Regional energy issues. Published newsletter on BPA's Power Sales Contract Negotiations. 1984-1996 Salem Electric Co-op Director - Elected to four 3-year terms . Chair, 1989- . Initiated, or major co-sponsor of the following initiatives: Inverted residential rates Salem, OR . Low-mcome energy assistance program Efficient appliance rebates, recycling rebates, at-cost CFLs, etc. Salem Electric "Building Code" which gives builders incentives for efficient building practices. Integrated Resource Planning. Representative to NWPP A, PPC, NRECA 1980-1996 Owner - 2 stores Staff of 8 Sales of $450 000 annually Salem, ORBicycle Doctors bicycle shops 1971-1985 nstructor/Professor . 1971-1977 Physics Instructor, Bucknell University 1977- I 979 Assistant Professor, Clarion State College. Research and teaching on campus demonstration high school. . 1980-1985 Math/statistics instructor (part-time), Chemeketa Community College Salem, OR Exhibit No. 301 192 2003-Present Board of Directors Elected to Citizens ' Utility Board board of directors , 2002 and 2005 Prepared testimony and participated as key Witness for NW Energy Coalition: Regulatory and other 1996, 200 I , 2002, 2006 Boill1eville Power Administration ratecases Policy Experience Numerous BP A proceedings including Power Function Review, Resource Adequacy Forum, Comprehensive Review, Subscription process, Regional Dialogue, etc. 1998, 2000 2003, 2006 PacifiCorp and Portland General Electric Integrated Resource Planning dockets. 1996 docket on purchase ofPGE by Enron 1999 docket on purchase of Pacifi Corp by Scottish Power 2001 PGE decoupling docket 2001 PacifiCorp and PGE restructuring dockets following passage ofSB1149 2002 UM 1 066 docket on Regulatory Policies affecting resource development 2002 NW Natural dockets establishing decoupling, public purpose charges 2004 Puget Power gas and electric docket on rate design 2005 Oregon dockets on competitive bidding, and Least Cost PlaIll1ll1g reqUIrements 2004~5 Oregon dockets instituting decouplinglpublic purposes for Cascade Natural Gas Lead negotiator for NW Energy Coalition: 1996 BP A contract negotiations on tiered rates Development of Grid West (RTO) 2001 BPA's "Safety-Net" rate adjustments 2002-05 BPA's Regional Dialogue Education 1968 BA Physics and Math, Univ. of California, Berkeley 1975 MS Education, Bucknell Univ., Lewisburg, Pennsylvania 1997 , 1999 Oregon Legislative sessions -- Co-authored and lobbied to pass SB 1149 Accomplishments Oregon s electricity restructuring law. with NW Energy Co-founded the Fair and Clean Energy Coalition, Oregon public interest lobbying Coalition coalition Expert witness in numerous Oregon PUC dockets and rulemakings, including proposals to decouple PGE and NW Natural's distribution rates, least-cost plans, etc. Expel1 witness in BP A rate caSes, including developing rate adjustment mechanisms now pm1 of the agency s rates. Environmental representative to GridWest development group. Filed testimony and comments to FERC on RTO West and other transmission and market issues. Serve on Governor s Advisory Committee on Energy which advises Oregon agencies on low-Income issues. Served on Portfolio Advisory Committee which develops portfolio choices for Oregon consumers under SB 114~. Serve on Energy Trust of Oregon s Conservation Advisory Council. Provide analysis and coordination with salmon advocates and tribes relating to energy/salmon issues. Exhibit No. 301 BARTON L. KLINE ISB #1526 MONICA B. MOEN ISB #5734 Idaho Power Company O. Box 70 Boise, Idaho 83707 Phone: (208) 388-2682 FAX: (208) 388-6936 bkline (g) idahopower.com mmoen (fj) idahopower.com Attorneys for Idaho Power Company Express Mail Address 1221 West Idaho Street Boise, Idaho 83702 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF THE PETITION OF IDAHO POWER COMPANY FOR MODIFICATION OF THE LOAD GROWTH ADJUSTMENT RATEWITHIN THE POWER COST ADJUSTMENT METHODOLOGY CASE NO. IPC-06- 193 IDAHO POWER COMPANY' RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY COMES NOW , Idaho Power Company ("Idaho Power" or "the Company") and , in response to the First Production Requests of NW Energy Coalition to Idaho Power Company dated August 8. 2006 , herewith submits the following information: . IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page Friday, September 15, 2006.max EXH'B'T 3v).. 194 REQUEST FOR PRODUCTION NO. Please state Idaho Power company s normalized system loads for each year starting with year' 1995 through 2005. RESPONSE TO REQUEST FOR PRODUCTION NO. Idaho Power company s normalized system loads for 1995 through 2005 in MWh' are as follows: 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 14656029 15141574 15180588 14758836 15240817 15837958 15759779 14276689 14193837 14536634 14819152 The response to this request was prepared by Gregory W. Said , Manager of Revenue Requirement, Idaho Power Company, in consultation with Barton L. Kline Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 2 Friday, September 15, 2006.max 195 REQUEST FOR PRODUCTION NO. Please explain the basis for Witness Greg Said's use of normalized system load to calculate the current embedded PCA-related cost of serving load (which he states to be $6.81/MWh), as oppo$ed to using normalized firm system sales to calculate the same figure.. RESPONSE TO REQUEST FOR PRODUCTION NO. The Load Change Adjustment, as calculated in the Company s PCA Deferral Report is based upon the change from Normalized System Load to Actual System Load. It would be inappropriate to use an adjustment rate based upOn sales unless the growth measured was also based upon sales, i.e. a sales change adjustment rather than a load change adjustment. Please also see the Company response to Staff Request for Production No. The response to this request was prepared by Gregory W. Said, Manager of Revenue Requirement, Idaho Power Company, in consultation with Barton L. Kline Senior Attorney, Idaho Power Comrany- IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 3 Friday, September 15, 2006.max 196 REQUEST FOR PRODUCTION NO. Please state Idaho Power Company s current average unit cost of serving load growth. RESPONSE TO REQUEST FOR PRODUCTION NO. From the Company s perspective average unit cost is synonymous with embedded cost. As stated in Mr. Said's testimony, the current embedded PCA related cost of serving load is $6.81 per MWh. The response to this request was prepared by Gregory W. Said, Manager of Revenue Requirement, Idaho Power Company, in consultation with Barton L. Kline Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 4 Friday, September 15, 2006.max 197 REQUEST FOR PRODUCTION NO. Please state Idaho Power Company s total amount of spending on demand-side management ("DSM") programs or initiatives (including payments to the Northwest Energy Efficiency Alliance ("NEEA") for each year starting with year 1995 through 2005. RESPONSE TO REQUEST FOR PRODUCTION NO. The following table details Idaho Power Company s total amount of spending on demand-side management ("DSM") programs or initiatives (including payments to the Northwest Energy Efficiency Alliance ("the Alliance )) for each year starting with year 1995 through 2005 as provided in the Company s respective DSM Annual Reports (previously termed Conservation Plan) filed with the Commission. Total System (nominal $) 1880 $6 186 558 1996 $4 350 128 1997 $3 189 173 1998 $2 681 668 1999 $2 127 840 2000 $1 609 217 2001 $1 694 314 2002 $2 143,103 2003 $2,482 972 2004 $3 707 280 2005 $6,700 973 Notes: Expenses are reported on a cash basis. The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline , Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THI::: FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 5 Friday, September 15 , 2006.max 198 REQUEST FOR PRODUCTION NO. Please state an estimate of Idaho Power Company s expected total amount of spending on DSM programs or initiatives (including payments to NEEA) in 2006. RESPONSE TO REQUEST FOR PRODUCTION NO. Idaho Power Company s expected total amount of spending on DSM programs or initiatives (including payments to the Alliance) in 2006 -is $12 670 000. The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline, Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSl:: 10 rHEFIRST PRODUCTION REQUEST OF Nw ENERGY COALITION TO IDAHO POWER COMPANY - Page 6 Friday, September 15, 2006.max 199 REQUEST FOR PRODUCTION NO. Please state the total amount collected by Idaho Power Company under Schedule 91 ("Energy Efficiency Rider") for each year starting with year 2002 through 2005. RESPONSE TO REQUEST FOR PRODUCTION NO. The total amount collected by Idaho Power Company under Schedule 91 ("Energy Efficiency Rider") on a system basis for each year starting with year 2002 through 2005 is provided in the following table. Idaho Power Company DSM Rider Funds - GL Account 254201 & 254202 Idaho & Oregon Yearly Data from 2002-2005 2002 2003 2004 2005 2002-2005 Total 761 727.43 12,575 298.44 105,269.200 885. 866 997.776 183. 101,742.42 101 742. 3,475.475. 105 217.105 217. Idaho Rider Funding Interest Idaho Total 577,984. 063. 592 048,77 587,753.98 . 2 647,832. 044.19 '. 39,507.40 629 798.17 2,687 339. Oregon Rider Funding Interest Oregon Total **Oregon Rider approved in August 2005. In August 2005, $141 089.64 was transferred into the rider account from a dcfCrITaI account. Year end available funding balance wa~ $246,307.14. The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline, Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 7 Friday, September 15, 2006.max 200 REQUEST FOR PRODUCTION NO. Please state an estimate of Idaho Power Company s expected total collections under the Energy Efficiency Rider in 2006. RESPONSE TO REQUEST FOR PRODUCTION NO. Idaho Power Company's expected total collections under the Energy Efficiency Riders in Idaho and Oregon in 2006 is approximately $8 740 979 based upon forecasted normalized sales. Idaho customers are expected to provide approximately $8 334,415 and $406 564 is expected from Oregon customers. The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline, Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 8 Friday, September 15, 2006.max REQUEST FOR PRODUCTION NO. 201 Please state the total amount of estimated energy savings (expressed as average megawatts) Idaho Power Company and its customers have achieved as a result of DSM programs (including any savingsj achieved as a result of NEEA programs) for each year statting with year 1995 through 2005. RESPONSE TO REQUEST FOR PRODUCTION NO. The following table details the total amount of estimated energy savings (expressed as average megawatts) Idaho Power Company and its customers have achieved as a result of DSM programs (including any savings achieved as a result of Alliance programs) for each year starting with year 1995 through 2005 as provided in the company s respective DSM Annual Reports (previously termed ConseNation Plan) filed with the Commission. Year 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 005 Annual Energy . Savings excluding Alliance (Mwa 2.42 Alliance Reported Energy Savings * (Mwa) 29** Total Annual Energy Savings (Mwa) Noles: Alliance Savings not available prior to 2004. The Alliance savings based on regional load allocation percentage of 6.5%. Preliminary estimate from the Alliance, February 24 2006 IDAHO POWER COMPANY'S RESPONSE TO THE: f-IHST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 9 Friday, September 15, 2006.max 202 The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline, Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 10 Friday, September 15, 2006.max 203 REQUEST FOR PRODUCTION NO. Please state the total amount of estimated energy savings (expressed as average megawatts) Idaho Power Company and its customers are expected to achieve as a result of DSM programs (including any savings achieved as a result of NEEA programs) in 2006. RESPONSE TO REQUEST FOR PRODUCTION NO. Idaho Power Company and its customers are expected to achieve energy savings of approximately 3.6 average megawatts in 2006 as a r~sult of DSM programs. This estimate does not include savings achieved as a result of Alliance programs as such estimate is not available to Idaho Power at this time. The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline , Senior Attorney, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page Friday, September 15, 2006.max 204 REQUEST FOR PRODUCTION NO. 10: Please provide any studies , reports , memoranda, or similar analyses which estimate the potential energy or peak demand savings which may be achievable through DSM programs in Idaho Power s service territory. RESPONSE TO REQUEST FOR PRODUCTION NO.1 0: Idaho Power objects to this request on the grounds that it does not specify any timeframe for producing studies , reports , etc.This objection notwithstanding, the enclosed CD contains copies of the studies, reports, etc. addressing the Company most recent estimates of DSM potential. The response to this request was prepared by Tim Tatum, Senior Analyst, Idaho Power Company, in consultation with Barton L. Kline, Senior Attorney, Idaho Power Company. DATED this 5th day of September, 2006, at Boise , Idaho. (lJci Y-:-- BARTOJ L. KLINE Attorney for Idaho Power Company IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION REQUEST OF NW ENERGY COALITION TO IDAHO POWER COMPANY - Page 12 Friday, September 15, 2006,max . Q, A.. 205 PLEASE STATE YOUR NAME AND BUSINESS ADDRESS. My name is Steven Weiss. I am employed by the NW Energy Coalition Coalition ), 219 First Ave. South, Suite 100, Seattle, W A 98104. HAVE YOU TESTIFIED BEFORE IN THIS PROCEEDING? Yes. I provided direct testimony. WHAT IS THE SUBJECT OF YOUR REBUTTAL? I will respond to the direct testimony of Mr. Reading (Industrial Customers of Idaho Power, or "ICIP") and Mr. Hessing of the Commission Staffwho address the testimony of Mr. Said (Idaho Power). WHAT ARE THE POSITIONS OF THESE PARTIES? Mr. Reading and Mr. Hessing take similar positions in this docket: that the load growth adjustment should continue to be based on the marginal cost of power. Mr. Said, on the other hand, believes that the adjustment should be based on the embedded cost of serving load, because to do otherwise unfairly penalizes the Company. Mr. Reading summarizes the issue at the page 2 (line 22) through page 3 (line 1) of his direct testimony: "The basic question being presented to the Commission is whether the calculation of the load growth adjustment rate should be changed from a marginal basis to an average basis. WHATARE THE UNDERLYING REASONS FOR THEIR POSITIONS? Staff and ICIP make a strong case that the Commission s intent of the load growth adjustment was to limit the PCA such that it allows the recovery of unpredictable changes in power supply costs between rate cases due to variations in hydro output Weiss, Di-Reb NW Energy Coalition 205a and fuel costs incurred to serve existing loads. Their position is that the PCA-related costs of load growth however, should be absorbed by the Company Until those costs are included in the base rates through a general rate case. To accomplish this goal Staff and ICIP assert the load growth adjustment must be based on marginal costs, so that the costs of load growth are completely removed from the PCA and therefore not recovered by the Company. Mr. Said, for Idaho Power, also makes a strong case that whatever the intent of the original peA, the Company should not be penalized " .. . for serving new customer loads while at the same time the Company has an obligation to serve those customers." (page 11, lines 19-21) He continues that , " Just as the Company has no discretion with regard to QF pricing, the Company also has no discretion not to serve new customer loads." To accomplish this goal, he argues that the Company should recover all (subject to 90%110% sharing per the PCA) of the incremental power costs of serving new load, so the load growth adjustment should include only the embedded power cost in the rate. WHAT IS YOUR VIEW OF THESE TWO POSITIONS? I see these positions as bookends. If adopted, the StafflICIP proposal to set the adjustment at today s true marginal costs (in the range of$40/MWh) - probably- would result in Idaho Power losing money as a result of load growth, while the Company s position-probably-would result in a windfall of revenues above actual costs. WHAT IS YOUR CONCERN WITH THE COMMISSION CHOOSING ONE OF THESE TWO POSITIONS? Weiss, Di-Reb NW Energy Coalition 205b First, there is an equity concern. The mechanism should strive to be neutral and not unjustly benefit either customers or shareholders. But the Commission is well-aware of this issue. My second concern was the subject of my direct testimony where I stressed that In periodic rate cases, a review of revenue and cost levels occurs, and rates determined such that the utility can earn that rate of return. But just as important an element of regulation is how the rate structure, and any trackers affects the Company between rate cases. (p. 3) In other words, the Commission s treatment of the load growth adjustment will likely affect the Company s attitude toward load growth-and thus its attitude toward conservation. This concern, in my opinion, should be an important criterion for the Commission s consideration because the Company s attitude toward conservation should not be addressed obliquely through a complex component of an annual rate adjuster. IN THE QUESTION BEFORE LAST, WHY DID YOU EMPHASIZE THE WORD PROBABL Y" Because whether load growth benefits or harms the Company is an empirical matter not a theoretical on , and it depends upon a number of facts. As I explained in detail in my direct testimony, new load creates both new revenues and new costs. It is not always readily visible whether the new revenues outweigh the new costs. The only way that can be determined is by ascertaining the incremental costs and revenues of the new load. And generally speaking, the incremental costs are usually different than the amounts embedded in rates. ARE THERE OTHER COMPLICATIONS? Weiss, Di-Reb NW Energy Coalition 205c Yes. For one thing, the incremental costs ofload growth are different for new load from an existing customer versus new load from a new customer. For example according to Idaho Power s response to production requests in this case, the incremental fixed costs of serving new customers added between the Company s two most recent rate cases are much higher than the fixed costs per existing customer in the rate cases. In the IPC-03-13 and -05-28 rate cases, the Company in~icates that total fixed costs per existing customer were about $395/customer and $422/customer respectively. The incremental fixed costs of serving customers added to the system between rate cases is about $7911customer, according to the Company s response. See Exhibit 303 (Idaho Power response to production requests). The incremental costs of serving load growth caused by a new customer are higher than the costs for serving an existing customer due to a number of factors, including line extensions, a new meter, etc. Second, the incremental costs are customer-specific (or at least class- specific). Third, Idaho Power s line extension policy will also affect how much revenue new customers provide. FinaIty, the incremental revenues received from additional load may be adjusted depending upon the outcome of IPC-04- (evaluating disincentives to conservation programs). WHAT CAN YOU CONCLUDE FROM THESE COMPLICATIONS? Together, these factors do not make it obvious whether any particular KWh of new load will benefit or hurt the Company s bottom line without further analysis. Therefore, it is not clear what the Company s incentives will be regarding load growth of any particular customer class, or between existing and new customers. Weiss, Di-Reb . NW Energy Coalition 205d WHAT PRINCIPLES, THEREFORE, DO YOU BELIEVE THE COMMISSION SHOULD ADHERE TO IN DETERMINING THIS ISSUE? It is the Coalition s opinion that: (1)The Commission should not use the PCA to set conservation policy, because IPC- E-04-15 case is addressing that issue precisely. In other words, the Commission should not attempt to set the growth adjustment mechanism too high (towards the Staffs bookend) as a substitute for a comprehensive conservation policy. (2)The correct policy position in this case, when taken together with the outcome in IPC-04-, should be one where the Company is neutral toward load growth, neither harmed nor benefited. Following these principles would be consistent with the goal of decoupling: to remove the incentive to promote load growth. HOW WOULD YOU RECOMMEND THE COMMISSION PROCEED? I would recommend a two-step process. First, the Commission should decide what goal it is attempting to pursue in this proceeding. The StafflICIP position is that power costs incurred to serve load growth should not be dealt with in the PCA at all but should only be addressed via general rate cases. This position is certainly in line with the original intent of the peA. However, it has the serious unintended consequence of failing to address the incentive or disincentive that policy would give the Company between rate cases. With regard to Idaho Power s position, the Commission should decide whether the Company should recover power costs incurred to serve load growth on the same basis as it recovers power costs incurred to Weiss, Di-Reb NW Energy Coalition 205e serve system loads reviewed in the most recent rate case. These competing positions each could potentially undermine the intent of the IPC-O4-15 docket, by creating incentives that decoupling should neutralize. The third choice is one that the Coalition recommends. It is that the combined outcome of this proceeding and IPC-04-15 should result in rate designs that, as close as possible, make the Company neutral toward changes in load. WHAT WOULD BE THE SECOND STEP? Implementation. Assuming that the Commission chose the third option, above, the Commission would require the Company to develop class-specific incremental net revenues (net of incremental costs) received from new loads. Each class would have at least two results: (1) net revenues due to new load from existing customers, and (2) net revenues due to new load from new customers. In developing these numbers the Company would have to take into account both the outcome of the decoupling docket, and its line extension policies. These incremental net revenues would then become the load growth adjustments the Company would use in calculating its PCA. I provided examples of this calculation in my direct testimony. The result would be a . mechanism that would recover neither too much nor too little revenue through the PCA, and therefore neither benefit nor harm the Company. This, in my opinion is the only result that would be consistent with a rate design policy of ensuring th Company s neutrality toward changing loads and changing customer numbers. DOES THIS CONCLUDE YOUR TESTIMONY? Yes. Weiss, Di-Reb NW Energy Coalition 205f BARTON L KLINE ISB #1526 LISA D. NORDSTROM ISB #5733 Idaho Power Company O. Box 70 Boise, Idaho 83707 Phone: (208) 388-2682 FAX: (208) 388-6936 bkline CW idahopower.com mmoenCWidahopower.com Attorneys for Idaho Power Company Express Mail Address 1221 West Idaho Street Boise, Idaho 83702 .Y' ' BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF THE PETITION OF . IDAHO POWER COMPANY FOR MODIFICATION OF THE LOAD GROWTH ADJUSTMENT RATE WITHIN THE POWER COST ADJUSTMENT METHODOLOGY CASE NO. IPC-O6- IDAHO POWER COMPANY' RESPONSE TO THE SECOND PRODUCTION REQUEST OF NW ENERGY COALITION COMES NOW, Idaho Power Company ("Idaho Power" or "the Company") and, in response to the Second Production Request of NW' Energy Coalition to Idaho Power Company dated September 29, 2006, herewith submits the following information: IDAHO POWER COMPANY'S RESPONSE TO THE SECOND PRODUCTION REQUEST OF NW ENERGY COALITION - 1 EXHIBIT ~v3 Thursday, October 19, 2006 (2).max 205g REQUEST FOR PRODUCTION NO. 11: " " Please provide actual-or in their absence, best "estimates-of the average fixed costs per customer that the Company incurs to serve new customers for each of the three (3) most recent years that are available. Please break down these costs by customer class for each class that would be affected by the PCA mechanism at issue in this docket. RESPONSE TO REQUEST FOR PRODUCTION NO. 11: Actual fixed costs by customer class are not determined on a regular basis. The Company's best estimate of the average fixed costs per customer would be derived by completing a cost-of-service study. The cost-at-service study is one part ot the analyses completed in preparing for a general rate case. The information from the cost-at-service studies for the Company s two most recent general rate cases, IPC- 03-13 and IPC-O5-, will provide the Company's "best estimate" for the fixed costs perJ' customer in the most recent years. The table below shows the number ot customers and the class fixed costs for each of the last two general rate case filings. The difference between the two rate cases would be the Company's best estimate of the average fixed costs per customer thafthe Company incurs to serve new customers in recent years. Residential Customers Class Fixed Costs IPC.E.O3-13 IPC.O5-28 Change 334,917 359 802 24 885 $132 442 770 $152,131,314 $19,688,544Incremental Fixed Cost per New Customer $791. Small Commercial Customers Class Fixed Costs IPC-E-O3-13 IPC-E-O5-28 Change618 34,310 692 $11 545.342 $13.435.685 $1 890,344Incremental Fixed Cost per New Customer $2 731. IDAHO POWER COMPANY'S RESPONSE TO THE SECOND PRODUCTION REQUEST OF NW ENERGY COALITION - 2 Thursday, October 19, 2006 (2).max 205h Large Commercial'IPC-E-O3-IPC-E-O5-Change Customers 213 17,587 374 Class Fixed Costs $45,408,159 $56,109,964 $10,701 205 Incremental Fixed Cost per New Customer $28,612. Industrial IPC-E-O3-IPC-E-O5-Change Customers 116 116 Class Fixed Co$ts $17,611,901 $22 696,177 $5,084,276Incremental FIxed Cost per New Customer N/A Irrigation IPC-E-O3-IPC-E-05-28 Change Customers 737 15,085 348 Class Fixed Costs $52 606 270 $51 362,375 ($1,243,896) Incremental Fixed Cost per New Customer ($3,574.41) Total Company IPC-E-O3-13 IPC-E-O5-28 Change Customers 400 601 426,899 26,299 Class Fixed Costs $259.615,042 $295,735 516 $36,120,473 Incremental Fixed Cost per New Customer $1,373. These computations are based on net investment after customer contributions in aid of construction. The response to this request was prepared by Mike Youngblood, Pricing Analyst J' " , Idaho Power Company, in consultation with Lisa D. Nordstrom, Attorney II, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE SECOND PRODUCTION REQUEST OF NW ENERGY COALITION - 3 Thursday, October 19, 2006 (2).max 205i REQUEST FOR PRODUCTION NO. 12: Please provide the same information requested in the previous question net of any line extension revenues. In calculating the line extension revenues per customer per year, assume an appropriate amortization time period. RESPONSE TO REQUEST FOR PRODUCTION NO. 12: The question references line extension revenues which the Company believes is a reference to customer contributions in aid of construction. Such contributions are direct offsets to investment for ratemaking purposes. Please see Response to Request for Production No. 11. The response to this request was prepared by Mike Youngblood, Pricing Analyst , Idaho Power Company, in consultation with Lisa D. Nordstrom, Attorney II, Idaho..J"' ,' Power Company.. ti DATED this /.2 day of October, 2006, at Boise, Idaho. iltit~ LISA D. NaRDS ROM Attomey for Idaho Power Company IDAHO POWER COMPANY'S RESPONSE TO THE SECOND PRODUCTION REQUESTOF NW ENERGY COALITION. 4 Thursday, October 19, 2006 (2).max 206 Wi th that, Mr. Weiss is available forMR. EDDIE: cross. COMMISSIONER SMITH:Mr. Woodbury, do you have any questions? Thank you, Madam Chair.MR. WOODBURY: CROS S - EXAMINAT I ON BY MR. WOODBURY: Good afternoon Mr.Weiss. Good afternoon. appears from your testimony that you have reviewed the Commission s PCA methodology order? (Nods head in an affirmative response. 24806? Yes. Did you understand theIs that a correct assumption? PCA mechanism approved by the Commission to have a limited purpose? It seems to.There was argument by the Company that there was some differences, but I think the clear language the language is pretty clear that it had a fairly narrow purpose, yes. You state in your rebuttal on page 3 that the Commission s treatment of load growth adj ustment will likely 207 affect the Company s attitude toward load growth and its atti tude toward conservation.You state on page 5 that the Staff Industrial Customers ' position is that the power costs incurred to serve load growth should not be recovered in the And you conclude that this position is certainly more inPCA. line with the original intent of the PCA? Yes. I agree that we should be conscience of unattended consequences of Commission s order and track mechanisms.But you state that -- let's just say -- assuming this original intent carries forward, what is your perception of how this will affect the Company I S attitude toward load growth? Well, as I attempted to explain with examples in my testimony, the Commission in its decoupling -- and I know this is not a decoupling docket.But in the decoupling docket, there seems to be a purpose of that -- a public interest goal to have the Company be neutral to load growth so that it is not punished if it helps conservation.Now , what I see that we re advocating Tha t the PCA loadthat the same type of approach be used here: growth adjustment should be set so that the Company is again And what I pointed out, there is twoneutral to load growth. types of load growth that occur that really have different impacts.One is -- -- existing customers? -- existing customers and new customers, yes. 208 And ifexisting customers, the fixed costs are pretty much set. existing customers used an extra kwh , the additional fixed cost should be zero if you really cost it fixed cost.There might be some tiny, small , incremental cost.But in general the additional rate, kwh rate, that that existing customer will pay about 5.9 cents can be used to help offset the added cost of going out and purchasing power.And so in that sense, the Company, if it's given -- if the Company s proposal , for instance, is accepted and even the Staff's proposal still at cents or so, still has a benefit to the Company of load growth of existing customers.Now , for new customers, because the extra revenue would get is more than the cost they are having to pay for new power -- for new customers the situation may be qui te different and is probably quite different in a daily request we got from the Company they say that new customers because you have to add a meter and you have to extend a line and you have many more additional costs than simply going out and buying the power -- that the additional costs that a -- the addi tional revenue that a customer, a new customer produces, may be on a net actually negative or zero -- that is, the additional And if thekwh generates additional revenue of about 5.9 cents. cost of the new line and the power and the meter and the extra service and the new transformer and all those things add up to 9 or more then the Company actually receives no new revenue from that -- no new net revenue.And so in that case they have 209 So the situation isto eat the entire cost of the power cost. qui te different for those two things.And our argument is to make the Company neutral , you can t use one load growth adj ustment.You have to use one load growth adj ustment for existing customers and a different one for new customer load growth.And together you want a policy that leaves the Company neutral as seems to be the Commission -- or at least many parties ' goal in the decoupling case. Okay. Sorry for that long explanation. Do I understand your position to be that if the Commission were to go forward factoring PCA out that the Company would be more favorably inclined toward existing customers as opposed to new customers? Again, the actualYes.That's what it looks like. But I think it's pretty clearnumber -- these aren t actuals. For new customers, it's probablyfor existing customers. It's on the edge whether a new customer s in kwhmarginal. actually helps the Company or not. At you state if inThe conclusion that you arrive: fact this were a penalty in place on the way to PCA presently operates -- and to the extent that the Company says that it that is in intui ti ve -- that perhaps would be investing more in And so your conclusion is thatDSM and it is not doing that. company is not being penalized enough?Is that what you are 210 saying? mean the feel that the Company word penalized goes a little too far. should be neutral, not be penali zed. shouldn t be punished for load growth , but it should be neutral to load growth.And so right now we think at least for existing customers that they are benefitting from load growth.And that's one of the reasons why they haven t invested very strongly.They claim -- the Company s claim that when loads grow , they are eating.That's basically their testimony; and, therefore, they have to have a lower load growth adj ustment number.If that were true they would be doing -- they would madly doing conservation.Except for the last year or so when they ve ramped up, and that's very good, they haven t done gang busters on conservation.So they must be making money on load growth. MR. WOODBURY:Okay.Thank you, Mr. Weiss. Madam Chair , no further questions. COMMISSIONER SMITH:Questions, Mr. Thompson? MR. THOMPSON:The Industrial Customers have no questions for Mr. Weiss. COMMISSONER SMITH:Mr. Kline? MR. KLINE:I do have a couple of questions, Madam Chairman. CROSS-EXAMINATION 211 BY MR. KLINE: Mr. Weiss, m -- I guess a little bit confused. I need to ask a few questions to make sure I understand the Coali tion ' s position at the end here.I would like you to take a look at your rebuttal testimony on page And on the top of the page there , you summarize the Coalition s position on the correct policy to come out of this proceeding.And looking on line 4 there, you say the Commission should not use the PCA to set conservation policy because the 04-15 case -- and that's the decoupling; correct? Yes. -- is addressing that issue precisely.And then you go on to say that the Commission should not attempt to set the load growth adj ustment mechanism too high toward the Staff' bookend as a substitute for a comprehensive conservation policy. Let me go on here.And then No., we will get your principles down and then I will have a couple of questions for you.The second principle that you ve described there -- and I will just read it because it's short -- the correct policy position in this case when taken together with the outcome in the IPC-E-04-15 case should be one where the Company is neutral toward load growth , neither harmed nor benefitted. Now , my question to you is:In order to achieve that state of neutrality, you are proposing three things 212 as I see it.First of all, you think that the Commission in this case should be considering what's going to come out of the decoupling case? Yes. I think you are also saying we should look at the line extension policy? Yes. And the third thing is to look at rate designs which is what you kind of described in your testimony.Do all those things need to be together -- done together to come up with the right decision -- is that your testimony? Yes, it is.So that -- because all of those things affect the revenues and the costs that the Company collects or bears, you have to look at all of those factors to adj ust the load growth -- if the load growth is the last adjustment you are doing.To make the Company neutral, you are going to have to take into account all of those factors, yes. So I would assume from that then , Mr. Weiss, that re not going to get that done in this case.Is that your testimony? That is true.And my recommendation is that the Commission would first decide that's what it wants to do because that's a maj or issue here.But if that is, and I think it should be something they should do, because over in Decoupling they seem to be wanting to maintain neutrality; and then the 213 second step would be to -- probably collaborative with the Staff , the parties in this case -- look at the actual numbers and come up with a policy, some load growth adj ustment numbers, that do make the Company neutral. I believe in your testimony you also indicate that we need to look at the Company s line extension policy as well; correct? Probably.Because often new load growth -- some of the cost of new load growth are paid for my -- through the line extension policies.So one would have not reset it or not redo it -- I'm not saying that, but just take into account when you look at how a new customer revenues and costs change when a new customer is put on the system. MR. KLINE:Okay, I believe I understand. Than k you. That's all I have. COMMISSIONER SMITH:Any questions from the Commissioners? (No response. COMMISSIONER SMITH:I just have one. CROSS-EXAMINATION BY COMMISSIONER SMITH: Are you engaged or involved at all in the decoupling 214 case? m not. THE WITNESS:Is Northwest? It's okay.It was directed to you personally. Oh.m involved in the Avista, puget Sound, and Cascade Natural Gas Decoupling in Washington right now, and was in the Northwest Natural Decoupling Case in Oregon. In any of your discussions with the Company and during this case, did the Decoupling case ever come up with any link between them? In our discussions with the Company?I didn t have discussions with the Company preparing the testimony. All right.Thank you.COMMISSIONER SMITH: Any redirect, Mr. Woodbury? MR. WOODBURY:I have no redirect. COMMISSIONER SMITH:Thank you very much. MR. WOODBURY:Thank you, Madam Chair. Staff would call Keith Hessing. KEITH HESSING, Produced as a witness at the instance of the Joint Applicants, being first duly sworn, was examined and testified as follows: DIRECT EXAMINATION 215 BY MR. WOODBURY: Would you please state your full name and spell your last name for the record? My name is Keith Hessing.My last name is spelled, H- E-S-S- I -N-G. staff. And to whom to you work and in what capacity? m employed by the Idaho Public Utilities Commission m a staff engineer. And in that capacity did you have occasion to prefilled in this case direct testimony consisting of 16 pages and three exhibits, Exhibits 101 through 103? Yes. And have you had the opportunity to review that testimony and those exists prior to this hearing? Yes. And was it necessary to make any changes or corrections? No. If I were to ask you the questions set forth in your testimony, would your answers be the same? They would. MR. WOODBURY:Madam Chair, I would ask that the testimony be spread on the record as its read and exhibits be marked.And I would present Mr. Hessing for cross-examination. 216 COMMISSIONER SMITH:If there is no objection, we will spread the pre-filed testimony of Mr. Hessing upon the record as its read and identify Exhibits 101 , 102, and 103. (The following pre-filed direct and rebuttal testimony of Keith Hessing is spread upon the record. 217 please state your name and business address for the record. My name is Keith D. Hessing and my business address is 472 West Washington Street , Boise , Idaho. By whom are you employed and in what capacity? I am employed by the Idaho Public Utilities Commission as a Public Utilities Engineer. What is your educational and experience background? I am a Registered Professional Engineer in the State of Idaho.I received a Bachelor of Science Degree in Civil Engineering from the University of Idaho in 1974. Since then , I worked six years for the Idaho Department of Water Resources, and two years for Morrison-Knudsen. have been continuously employed at the Commission since August 1983. As a member of the Commission Staff , my prlmary areas of responsibility have been electric utility power supply, revenue allocation and rate design. What is the purpose of your testimony in this proceeding? I will address the Company s filing to reduce the load growth adjustment multiplier, sometimes called the Expense Adjustment Rate for Growth (EARG), which is used in the Power Cost Adjustment (PCA) true up calculation. CASE NO. IPC-06-9/14/06 HESSING, K (Di) STAFF 218 As a member of the Commission Staff have you worked on Idaho Power Company s annual PCA mechanism since its inception in 1992? Yes I have. Wha t is the purpose of the Company s PCA? The PCA was created to address the problem of fluctuating water conditions that caused widely varying power supply costs. What does the load growth adj ustment multiplier do in the PCA true up calculation? When the Company s load grows between general rate cases the power supply costs of serving that load growth are captured in the PCA true up mechanism.All part of those costs are removed from the mechanism by applying the multiplier to the amount of load growth and removlng the resulting cost from actual power supply costs incurred.Any costs removed in this manner are not available for deferral as part of the PCA true up and therefore, will not be recovered in PCA rates. Please provide an example of this calculation and the associated adjustment. Staff Exhibit No. 101 , pages 1 and 2, shows the PCA true up calculations from the Company ' s last PCA case, Case No. IPC-06-The expense adj ustment associated with load growth for the month of April 2005 CASE NO. IPC-06- 9/14/06 HESSING , K (Di) STAFF 219 calculated on lines 9 through 12.Lines 9 and 10 show the actual load and the normalized load.Line 11 calculates the load growth and line 12 is the product of the load growth and the load growth adj ustment mul tipl ier. ( 1 , 0 02 , 52 8 MWh - 9 74 , 0 6 6 MWh = 2 8 , 4 62 MWh)(28,462 MWh x 1 6 . 8 4 $ / MWh = $ 4 7 9 , 3 0 0 )Line 12 shows the calculated expense adjustment for April to be $479,300.This amount is carried to line 23 where it is shown as a reduction to actual power supply expense.Page 2 , lines 12 and 23, shows the total adj ustment for the PCA year to be $10 291,160. What does the Commission need to decide in thi s proceeding? There are two parts to the decision that the commission is being asked to make in this case.The first part is a matter of policy.Should Idaho Power Company be allowed to recover the variable costs of power supply associated with load growth that occur between general rate cases through the PCA mechanism?The second question follows.What is the appropriate load growth adjustment multiplier that accomplishes the policy decision? Please provide some history and background information on Idaho Power s PCA mechanism. Prior to PCA implementation , if the Company load grew , the Company sold the additional energy at CASE NO. IPC-06- 9/14/06 HESSING, K (Di) STAFF 220 approved retail rates and the Company incurred costs in serving the new load.The revenues and costs associated wi th serving load growth were not necessarily balanced. costs exceeded revenues, the Company could file a general rate case to increase rates to cover the costs on a prospective basis.I f the cost of serving load growth did not exceed the costs embedded in rates, no rate increase would be justified. Please discuss Idaho Power Company s initial PCA filing. Idaho Power Company filed for a PCA in 1992 and it was approved and implemented in 1993 with some modification.Idaho Power s 1992 PCA filing was made to address the problem of fluctuating water conditions that caused widely varying power supply costs.When water condi tions were poor , power supply costs were higher than what was authorized for recovery in rates.A general rate case provided no relief from high power supply costs associated with below normal water conditions since water condi tions and power supply costs are normalized in a general rate case. Staff observed that in the Company s original PCA proposal ! variations from the normalized costs of power supply were due to water conditions and power supply cost increases caused by load growth.Staff believed that load CASE NO. IPC-E- 06 - 89/14/06 HESSING! K (Di) STAFF 221 growth costs could be significant and that load growth costs were not the kind of costs that the PCA should recover.Staff proposed a load growth adj ustment mechanism in the PCA that removed actual power supply costs associated with load growth by multiplying the amount of load growth by the marginal cost of power supply and subtracting the result from actual power supply costs. Staff approximated the marginal cost of power supply as 16.84 $/MWh which was the average of the variable costs of Valmy and Boardman, the Company s two highest operating cost resources at that time.In that case Staff also argued that without the adjustment the Company would double recover the normalized cost of power supply h€cause it was included in base rates and in actual booked power supply costs that accumulated in the PCA true up mechanism. The Commission accepted Staff's load growth adj ustment to the PCA in its final Order. We find that the net power supply costs associated with serving differences in load between normal and actual should be removed from the PCA. We adopt the method proposed by Staf f for making this adj ustment; it was the only method proposed. We agree with Staff that Idaho Power s proposal unduly broadens the scope of this proceeding, which is simply to devise a mechanism for the recovery of power supply costs that include the sum of fuel costs, non- firm energy purchases and CSPP costs less revenues from non-firm energy sales and FMC secondary sales. Idaho Power s proposed PCA allows it to double recover fuel costs associated with load growth which , essentially, offsets the cost of constructing additional plant. We recognize CASE NO. IPC-E- 06 - 8 9/14/06 HESSING , K (Di) STAFF 222 and support the Company s right to recover costs associated with prudent plant additions. Our decision to not allow a PCA mechanism to recover costs to offset legitimate plant costs caused by load growth in no way prevents the Company from recovering these costs in traditional ratemaking proceedings. A PCA is not intended to replace the prudency review process inherent in a general rate case. (Order No. 24806 , pg. 20, Emphasis added) . The load growth adj ustment has been made in every PCA true up calculation since the PCA was established.Staff's intent from the initial PCA cas~ was to update the load growth adj ustment mul tipl ier to reflect the average marginal cost of power supply as part of each general rate case.So doing would continue to remove the variable power supply costs associated with load growth that accumulate in the PCA at the marginal cost of supplying power. Please discuss Staff's reVlew of the power supply cost load growth issue the next time it came up. The Company s next general rate case was Case No. IPC-94-In that case Staff used the difference in power supply costs from two different power supply model runs to determine the marginal cost of power supply.The only difference in the two power supply model runs was that the second run was designed to meet an incrementally larger load.From those results a marginal cost of power supply of 16.22 $/MWh was calculated.(Case No. IPC-03- Hessing Direct, pg. 21 , line 7).This result was CASE NO. IPC-06-9/14/06 HESSING, K (Di) STAFF 223 sufficiently close to the 16.84 $/MWh already in use that Staff proposed no change in the marginal cost multiplier by entering no testimony concerning this issue.No other party proposed that the multiplier change.The case contained no testimony concerning the multiplier. The power supply cost associated with load growth was an issue in the Company s next general rate case.Please discuss the case in that context. The Company s next general rate case was the IPC-E- 03 -13 Case filed nearly 10 years later.In that case the Company proposed to reduce the multiplier , that it called the Expense Adjustment Rate for Growth or EARG, to 13.98 or 7.30 $/MWh based on two different interpretations of the purpose of the adj ustment .In that case Staff did not use its own calculation of the marginal cost of power supply but used the "Marginal Cost of Energy " from Idaho Power s response to Request No.3 0 of the Idaho Irrigation Pumpers Association.The amount from the study was 27. $/MWh which became 29.41 $/MWh when 8.9% losses were included.Based on those results Staff proposed a 29. $/MWh marginal cost multiplier.(Case No. IPC-03- Hessing Direct , pg. 20 , line 16) The Commission did not decide the magnitude of the multiplier in that case but set the issue aside along with several other issues to be settled by the parties. CASE NO. IPC-06-9/14/06 HESSING, K (Di) STAFF 224 the give and take of settlement negotiations the multiplier stayed at 16.84 $/MWh but was, by specific settlement language, to be reevaluated in the next general rate case. The settlement was accepted by the Commission. Please discuss the power supply cost of load growth issue that was part of the Company s most recent general rate case. The Company s next general rate case was Case No. IPC-05-28.This entire case was settled and the settlement was accepted by the Commission.During settlement discussions the Staff and Company differed substantially on the magnitude of the PCA load growth adj ustment mul tiplier.The settlement called for a separate proceeding t6 decide the issue.This is that proceeding. Are Idaho s other regulated electric utilities allowed to track and defer differences between normal and actual power supply costs associated with load growth that occur between general rate cases for later recovery? Rocky Mountain Power has no PCA and no tracking mechanism that allows it to track and recover these costs between rate cases.Avista Utilities has a PCA that is very similar to Idaho Power Its purpose is to track hydro conditions as they affect power supply costs. By Commission, Order Avista removes power supply costs CASE NO. IPC-06- 9/14/06 HESSING, K (Di) STAFF 225 associated with load growth that occur between rate cases by multiplying load growth by the marginal cost of power supply and subtracting that amount from actual power supply costs.In Case No. AVU-E- 04 -1 the Commission established the load growth adjustment multiplier as 36.38 $/MWh. (Order No. 29602 , pg. 46) Do you believe that Idaho Power Company should be allowed to recover the power supply costs of load growth through the PCA mechanism between rate cases? No, I do not.Staff's position is the same as it was in the initial PCA case previously discussed in this testimony.It is also clear that the Commission ordered PCA that went into effect in 1993 was very specifically designed to remove the power supply costs of load growth. Was the Company required to absorb the power supply costs of load growth between rate cases prior to PCA approval? The Commission s decision to remove loadYes. growth costs leaves the Company in the same position that it was in prior to the PCA.The Company receives revenue from sales of the growing load and has costs associated wi th serving the new load.If costs are more than revenues the Company can do what it has always done, make a rate filing to recover the difference prospectively. Do any other costs, established during a rate CASE NO. IPC-06- 9/14/06 HESSING, K (Di) STAFF 226 case using a historic test year, vary in between rate cases? Yes.Cost differences occur in virtually hundreds of utility accounts and must be trued up in a general rate case unless special treatment is approved by the Commission. I s ther~ another reason that you oppose recoverlng the costs of load growth between rate cases? Yes.It does not always follow that the costs of serving new load exceed the revenues derived from supplying new load.Generation and transmission investments are made in large increments.A single generation or transmission proj ect may supply tens of thousands of new customers.This means that some of the costs that may be included in base rates are not incurred when load grows yet the Company receives revenue from the application of existing rates that may more than cover these embedded costs. I s there a long- standing reason why the actual costs associated with individual accounts or groups of accounts are not simply tracked through with annual rate adjustments between general rate cases? In any given year the costs associatedYes. with some accounts may increase while the costs associated wi th other accounts may decrease.It is not fair or CASE NO. IPC-06- 9/14/06 HESSING , K (Di) STAFF 227 reasonable to exclusively select one group of costs or the other.The only fair way to establish rates is to look at all the utilities costs together as is done in a general rate case. Is there another difference between the variable power supply costs associated with load growth and the variable power supply cost associated with fluctuating water conditions? Yes.Load growth related power supply costs are addressed in a general rate case but power supply costs associated with abnormal water conditions are not.In a general rate case abnormal water conditions and their associted costs are normalized out. Do you .have another concern with allowing the Company to recover the variable cost of power supply associated with load growth between rate cases? This concern pits demand side managementYes. (DSM) programs against the two very different revenue streams that the Company could realize depending on the Commission s decision in this case.I would submit that the Company s incentive to grow load , or the disincentive for effective demand side management, is greatly increased when the Company receives the retail revenue from increased load and PCA reimbursement for power supply costs on the margin as opposed to just the retail revenue.In the first CASE NO. IPC-06- 9/14/06 HESSING, K (Di) STAFF 228 case, for example, the Company could receive 84 $/MWh (8. ~ /kWh)This could occur if retailfor growing load. revenue were 55 $/MWh and the marginal cost of power supply were 41 $/MWh which becomes 29 $/MWh when it is jurisdictionally allocated and shared before becoming a PCA rate ((41-81) *941*90=29) .This scenario assumes that the Commission s decision in this case allows the Company to recover load growth power supply costs on the margin between rate cases.If the Commission does not allow this recovery then the Company receives only the retail revenue of 55 $/MWh.The incentive for growing load, not implementing effective DSM, is substantial if the Company receives 84 $ /MWh in revenues from load growth. Does the Company currently have another filing before the Commission that is intended to remove the DSM disincentive that you have just described? The Company does currently have another filing before the Commission , Case No. IPC-E- 04 -15, aimed at removing DSM disincentives , but it does not address the DSM disincentive that would be created in this case by the Company s proposal.In fact , because this other filing looks at use per customer, it is quite possible for PCA load to grow and use per customer to decline in which case the Company would receive additional revenues between rate cases from both adj ustment mechanisms. CASE NO. IPC-06- 9/14/06 HESSING 1 K (Di) STAFF 229 What are the rate choices that the Commission could make for the load growth multiplier? If the Commission decides to allow the Company to recover the variable cost of power supply associated wi th load growth between rate cases, then only the embedded variable cost of power supply should be subtracted from actual power supply costs in the PCA mechanism.This is what the Company proposes to do with its 6.81 $/MWh multiplier.The application of this mul tiplier prevents the double counting of embedded power supply costs. If it is the Commission s decision to not allow the Company to recover the variable power supply costs associated with load growth through the PCA between general rate cases I then the adj ustment should be made using the variable cost of power supply on the margin. Staff's most recent calculation of this amount is 40. $/MWh.The application of this multiplier prevents the double counting of embedded power supply costs and also prevents the PCA recovery of the power supply costs associated with load growth between rate cases.The calculation of this number is shown on Staff Exhibit No. 102.The number comes from two power supply model runs that differ by an increment of load.The base run is the model run presented by the Company in its most recent general rate case, Case No. IPC-05-28. CASE NO. IPC-06- 9/14/06 HESSING, K (Di) STAFF 230 Do the Company s proposed number and the Staff's proposed number come from the same power supply mode 1 ? Yes.Both numbers come from the Company Aurora power supply model. Have you prepared an Exhibit that estimates the impacts of the various load growth adjustment multipliers? Yes I have.Staff Exhibit No.1 03 shows estimated annual load growth adjustments assuming a 40 MWa growth in load.Column (3) shows the annual adjustment at the current load growth adjustment rate of 16.84 $/MWh to be $5.9 million per year, Column (4) shows the adjustment at the Company proposed rate of 6.81 $/MWh to be $2. million per year and Column (5) shows the amount of the adjustment at the Staff proposed rate of 40.87 $/MWh to be $14.3 million per year.This load growth adj ustment amount is cumulative between general rate cases until the base load is reestablished.For example, under Staff' proposal , the adjustment is estimated to be $28.6 million if the Company goes two years between general rate cases. Because these amounts can get quite large in a very few years, especially if Staff's load growth adj ustment rate is accepted , this could be a significant factor affecting the frequency of Company rate case filings. CASE NO. IPC-06- 9/14/06 HESSING, K (Di) STAFF 231 A portion of the PCA rate that the Commission puts in place each year comes from the PCA forecast.How lS the PCA forecast affected by the Company s proposal? The Company is not proposing to change the forecast.Therefore, stream flow runoff forecasts would continue to be used to predict variations from normal power supply costs that would be expected under th~ normalized load.The problem is that under the Company s proposal the true up portion of the PCA is not tracking power supply costs under normalized load conditions but power supply costs under actual load conditions which includes the power supply costs associated with load growth that accumulate at the marginal cost of power supply.The result is that when load grows normal water conditions produce an increase in PCA rates and , gobd water conditions that should produce PCA rate reductions, could actually produce rate ' increases. This occurs because the true up mechanism is capturing costs associated with load growth rather than water condi tions.The problem grows with time between general rate cases because load growth costs accumulate from year to year as previously discussed.Under the Company proposal the PCA forecast based on water conditions would never be accurate and the customer prlce signal value of the forecast is significantly reduced if not completely lost. CASE NO. IPC-06- 9/14/06 HESSING , K (Di) STAFF 232 Does the Staff's position establish a bright line that identifies the purpose of the PCA? Yes it does.It establishes the primary purpose of the PCA as a mechanism that tracks abnormal power supply costs primarily associated with variations in water conditions and market prices for a Commission approved normalized fixed load. What is the situation if the Company position is accepted by the Commission? Acceptance of the Company s position establishes a precedent for the recovery of costs between rate cases that could otherwise be captured in a general rate case and addressed with all other costs. Does this conclude your direct testimony in this proceeding? Yes, it does. CASE NO. IPC-06- 9/14/06 HESSING , K (Di) STAFF DESCRIPTION 3 PCA Revenue 4 Normalized Idaho Jurisd. Sales 5 Forecast Rate 6 Revenue 8 Load Change Adjustment 9 Actual System Firm Load - Adjusted 10 Normalized Firm Load 11 Load Chan 12 Expense Adjustment (cg)16.84) 14 Non-QF PCA 15 ACTUAL: 16 BPA Water Option Agreement 17 Cloud Seeding Program 18 Fuel Expense - Coal 19 Fuel Expense - Danskin 20 Fuel Expense - Bennett Mountain 21 Non-Firm Purchases 22 Surplus Sales 23 Ex ense Ad ustment (cg)16.24 Sub-Total 26 BASE: 27 Fuel Expense - Coal 28 Fuel Expense - Danskin 29 Fuel Expense - Bennett Mountain 30 Non-Firm Purchases 31 Surplus Sales 32 Sur lus Sales Adder33 Sub-Total 35 Change From Base 36 Deferral (Shared and Aliocated) 38 QF Deferral 39 Actual (includes Net Metering) 40 Base 42 Change From Base 43 Deferral (Allocated) 45 Intervenor Funding 46 Credit From IDACORP Energy 47 Settlement Agreement (ON 29600) 48 Bennett Mtn. Credit (ON 29790) 49 Total Deferral (-6+36+43+45+46+47+48; 51 Principal Balances 52 Beginning Balance 53 Amount Deferred 54 Ending Balance 56 Interest Balances 57 Accrual thru Prior Month 58 Interest cg) 2% per Year 59 Prior Month's Interest Ad 60 Total Current Month Interest 61 interest Accrued to Date 62 Balance (True-Up & Interest) 64 True-Up of the True- 65 True-Up Revenues66 True Up Rates67 Actual Idaho Sales68 Total 70 Beginning Balance 71 Adjustments per ON 2979372 Fuel Expense Adjustment73 Intervenor Funding 74 Irri ation Lost Revenues ON 2966975 Sub-Total 76 Interest cg) 2% per Year 77 Revenue Applied to Interest 78 Revenue Applied to Balance 79 True-Up of the True-Up Balance Units MWh mlKWh TRUE-UP CALCULATIONS FOR 2005 - 2006 FOR IDAHO POWER COMPANY PCA CASE NO. IPC-06- Commission Decision 2005 APR 862,931 2.499 156,465 MWh MWh MWh 002 528 974 066 28,462 (479 300) 788 527,289 333 725 098 341 (5,434 762) 479 300 103 080 108 200 264 800 000 187 500) 786 500) 889 580 528 585 131 025 815 766 (684 741 ) (644 341) (166 667) (804 167) 756 946 756 946 756 946 757 003 2005 MAY 881 064 2.499 201,779 020 216 142 316 122 100 056 164 256 201 516 168 114 958 169 001 500 338 (18 370 968) 056 164 (758 138) 800 600 278 500 664 100 (6,566 900) 176 300 934,438) 638 276) 605 364 160 399 (555 035) (522 288) (166 667) (804 167) 333 176) 756 946 333 176 576 230) 262 231 287 569 943) 2005 JUN 002,040 288 296 748 272 295 258 858 13,437 (226 279) 878 317 114 108 654,700 234 832 (14 206 066) 226 279 6,449 612 344,900 275 700 931 000 558 900) 992 700 1,456 912 233 859 359 151 508 847 (149 696) (140 864) (166 667) (804 167) 986) 178 571 ) 576 230) 178 571 754 801 ) 287 627) 627) 660 751 141) 2005 JUL 185 074 288 081 597 641 692 1,491 793 149 899 524 299) 168 717 191,888 1,480 609 198 870 (11 376 337) 524 299 139,448 714 800 279 600 335 100 385,400) 944 100 195 348 9,481 340 810 850 702 897 107 953 101 584 (166 667) (804 167) 986) 526 508 754 801) 526 508 228 293) 660 591) 595) 935 234 228) 2005 AUG 303,702 288 590 274 538 801 1,424 633 114 168 922 589) 963 765 274 450 682 146 513 360 602) 922 589 368 042 721 300 280 000 842 900 371 000) 473 200 894 842 767 542 6,490 347 6,422 258 089 071 (166 667) (804 167) 986) 266 520 228 293) 266 520 038 227 935) 714) 145 569) 504 028 722 2005 SEPT 164 116 288 991 729 190 787 179 173 11,614 (195 580) 093 240 (639 672) (875 540) 710,413 (12 538 689) 195 580 554 171 8,446 500 264 800 480 800 702 300) 3,489 800 064 371 135 916 038 841 081 395 (42,554) (40,D43) (166 667) (804 167) 986) (870 676) 038 227 870 676 167 551 504) 064 105 959 545 163 005 ~lkWh kWh 3707 0.3707 0.4024 0.4024 0.4024 0.4024 840 704 656 939 127 871 1 054 848 703 1 325 929 728 1 309 551 663 1 137 579,165 164 039 3 002 187 2 701 380 2 176,780 2,406 699 2 173 844 921 564 (250 506) 671 058 118 118 102 921 568 138 Note: Negative amounts indicate benefit to ratepayers U\kh",i"",,"O607\Com,~y C".\TRUE UPS & RATES 9/12/2006 KDH 568 138 (45 675) 13,482 882 005 345 342 342 923 845 081 500 081 500 081 500 73,469 73,469 627 910 453 589 41,453 589 453 589 089 089 107 691 345 898 345 898 345 898 576 576 341 123 004 775 004 775 004 775 61,675 675 112 169 892 606 233 2005 OCT 925 105 288 966 850 051 573 055 943 370 591 374 911 285 872 783 7,4 77 ,280 (13 902 800) 591 315 636 727 700 272,300 700 982 500) 053 200 737 564) (1,471 543) 068 572 792 830 (724 258) (681 526) (166 667) (804 167) 986) 094 739) 167 551 094 739 927 189) 545) 613 603 943 928 131) 0.4024 975 839 218 1,723 273 892 606 892 606 154 154 665 118 227,488 Exhibit No. 101 Case No. IPC-06- K. Hessing, Staff 9/14/06 Page 1 of DESCRIPTION 3 PCA Revenue 4 Normalized Idaho Jurlsd. Sales 5 Forecast Rate 6 Revenue 8 Load Change Adjustment 9 Actual System Firm Load - Adjusted 10 Normalized Firm Load 11 Load Chan 12 Expense Adjustment ((QJ16.84) 14 Non-QF PCA 15 ACTUAL: 16 BPA Water Option Agreement 17 Cloud Seeding Program 18 Fuel Expense - Coal 19 Fuel Expense - Danskin 20 Fuel Expense - Bennett Mountain 21 Non-Firm Purchases 22 Surplus Sales 23 Ex ense Ad ustment ((QJ16. 24 Sub-Total 26 BASE: 27 Fuel Expense - Coal 28 Fuel Expense- Danskin 29 Fuel Expense - Bennett Mountain 30 Non-Firm Purchases 31 Surplus Sales 32 Sur lus Sales Adder 33 Sub-Total 35 Change From Base 36 Deferral (Shared and Allocated) 38 OF Deferral 39 Actual (includes Net Metering) 40 Base 42 Change From Base 43 Deferral (Allocated) 45 Intervenor Funding 46 Credit From IDACORP Energy 47 Settlement Agreement (ON 29600) 48 Bennett Mtn. Credit (ON 29790) 49 Total Deferral (-6+36+43+45+46+47+48) 51 Principal Balances 52 Beginning Balance 53 Amount Deferred 54 Ending Balance 56 Interest Balances 57 Accrual thru Prior Month 58 Interest (QJ 2% per Year 59 Prior Month's Interest Ad 60 Total Current Month Interest 61 Interest Accrued to Date 62 Balance (True-Up & Interest) 64 True-Up of the True- 65 True-Up Revenues66 True Up Rates67 Actual Idaho Sales68 Total 70 Beginning Balance 71 Adjustments per ON 2979372 Fuei Expense Adjustment73 Intervenor Funding 74 Irri ation Lost Revenues ON 29669 75 Sub-Total 76 Interest (QJ 2% per Year 77 Revenue Applied to Interest 78 Revenue Applied to Balance 79 True-Up of the True-Up Balance TRUE-UP CALCULATIONS FOR 2005 - 2006 FOR IDAHO POWER COMPANY PCA CASE NO. IPC-06- Commission Decision Units MWh mlKWh 2005 NOV 885 609 288 797,491 MWh MWh MWh 137 344 079 817 527 (968 755) 798 142 377 898 759 196 111 728 267) 968 755 675 887 8,445 200 264 700 610 900 (1,414 700) 906 100 769 787 192 633 095 280 204 739 (109,459) (103 001) (166 667) (804 167) 986) 682 679) 927 189) 682 679 609 867) (943) 212) 212) 155 619 022) 2005 DEC 965 920 288 141 865 354 735 220,489 134 246 260 703) 414 022 902 700 314 726 523 632 754 148 (15 037 170) 260 703 611 354 727 000 272 800 884 100 357,300) 526 600 084 754 315 978 315 598 193 531 122 067 114 865 (166 666) (804 167) 986) 314 159 609 867) 314 159 704 291 155) (11 016) (11 036) 191 684 100 2006 JAN 043 993 288 4,476 642 244 146 207 127 019 (623,400) 140 182 468 720 885 790 190 694 (33,421 590) 623,400 175 719) 8,460 000 272 500 397 900 811 600) 318 800 (5,494 519) 653 308) 792,655 164 012 628 643 591 553 (804 167) 986) 346 550) 704 291 346 550 642 258) (20 191) 174 175 016 656 274) 2006 FEB 968 236 288 151 796 124 755 032 883 872 547 124) 137 597 178 162 089 480 292 649 (32,412 950) 547 124 (12 263 097) 371 000 257 500 700 681 800) 400 (12 298 497) (10,415 597) 707,472 073 610 633 862 596 464 (804 167) 986) (14 779 081) 642 258) 779 081 (20,421 340) (14 016) (9,404) (9,403) 23,419 (20 444,758) ~lkWh kWh 0.4024 0.4024 0.4024 0.4024 890,496,444 1 005,408 010 1 078 920 738 1 016 643 093 568 690 1 889 864 1 988 372 1 739 243 227,488 227,488 379 379 513 310 714 178 Note: Negative amounts indicate benefit to ratepayers Ulkhmio'pcoO6O7\Comp"" C.,,'TRUE UPS & RATES 9112/2006 KDH 714 178 714 178 857 857 837 007 877 170 877 170 877 170 795 795 938 577 938 593 938 593 938 593 564 564 692 679 245 915 2006 MAR 909 048 288 897 998 139 815 040,475 340 672 886) 102 305 762 059 0)6 205 921 12,443 565 (37,458 046) 672 886 (17 588 065) 282 200 273,400 700 074 900) (441 600) (17 146,465) (14 521 342) 2,497 723 292 773 204 950 192 858 (804 167) 986) (19 034 634) (20,421 340) 034 634 (39,455 973) (23,419) (34 036) 276 (34 312) 730 (39 513 704) 234 TOTALS 096 838 751 234 14,718 687 107 573 611 114 (10 291 160) 108 094 100 632 189 992,041 995 540 188 243 754 (211 248 247) 291 160 72,432,211 149,400 256600 376 900 (63 094 800) 688 100 744 111 955 787 912,878 46,413 057 (500,179) (470 669) 500 000) 650 000) (39 858) (39,455 973) 39,455 973 (57,488) 242 (57 730) (39 513 704) 0.4024 954 795 701 12 529 844 990 776 360 26 310 731 245 915 245 915 743 43,743 732 617 513 298 416 271,416 (250 506) (45 675) 13,482 882 429,458 117 715 764 594 967 513 298 Exhibit No. 101 Case No. IPC-06- K. Hessing, Staff 9/14/06 Page2of2 235 IDAHO POWER COMPANY CASE NO. IPC-06- STAFF MARGINAL COST CALCULATION IPC-05-28 AURORA POWER SUPPLY BASE Units Annual IPC-05-28 Energy MWh 866 817. IPC-05-28 Cost 975. IPC-05-28 +10 MWa Energy MWh 954 391. IPC-05-28 +10 MWa Cost 554. Energy Difference MWh 573. Cost Diffeence 578. Marginal Cost $/MWh 40. Exhibit No. 102 Case No. IPC-06- K. Hessing, Staff 9/14/06 236 IDAHO POWER COMPANY CASE NO. IPC-O6- STAFF LOAD GROWTH ADJUSTMENT CALCULATIONS (1)(2)(3)(4)(5) Description Units Load Load Load Growth Growth Growth Adjustment Adjustment Adjustment (ill 16.84 (ill 6.81 (ill 40.87 Load Growth Adjustment Rate $/MWh 16.40. Load Growth Energy (40 MWa)MWh 350,400 350,400 350,400 Load Growth Adjustment 900 736 386 224 320 848 Exhibit No. 103 Case No. IPC-06- K. Hessing, Staff 9/14/06 237 THIS PAGE INTENTIONALLY LEFT BLANK 238 MR. WOODBURY:And I present him now for cross-examination. COMMISSIONER SMITH:Mr. Eddie? MR. EDDIE:Than k you.I have a few questions. CROSS- EXAMINATION BY MR. EDDIE: Mr. Hessing, is it fair to summarize your position basically that Idaho Power should not recover costs the company incurs to purchase fuel or power of market? Not recover through the PCA mechanism, yes. Would your answer to that question change if I changed the question to ask about fixed cost?For example, if the question was this:Should Idaho Power recover costs the company incurs to build new substations or additions between rate cases? I guess my answer maybe would have two parts to that. Those kinds of fixed costs have never been part of the PCA mechanism.And the Company earn a return on equity to deal with risks between rate cases that deal with costs like fixed costs that vary. So the answer is because the costs are recovered differently that they should be treated differently? Well , they haven t been addressed directly in the PCA 239 mechanism.The Company has varying costs between rate cases of And that's been recogni zed for a long time in theall kinds. The Company earns a return on equity thatrate-making process. deals with risks that revenues from selling -- well, revenues And that's all balanced when a rate case iswon I t offset costs. held.One of the things that has come out of this hearing so far to me is that between rate cases there are a lot of costs that vary and there are revenues that are collected associated And a balancing of that is something that iswi th load growth. In between that period of timedone In a generate rate case. they are just business risks for the Company, and they are addressed in the return on equity. Okay.After reading your testimony, I came up with the assumption that Staff does support the acquisition of all cost effective demands by the Company? Our testimony in this case is about the PCA, which really doesn t have a thrust of demand-side management.Because the rates that the Company recovers when they sell kilowatt hours or don t sell kilowatt hours affect the Company s attitude toward demand-side programs, I think it has to be factored in. We thinkBut those weren t considerations in our case directly. this case is addressed at other things.But you can t ignore the fact that saving kilowatt hours or growing load or reducing load, those are the same things.They are opposite views of the same thing and they affect each other. 240 Do you agree that one way that Idaho Power could avoid the impact of the -- if Commission if were to adopt your recommendation, one way for them avoid impact of recommendation would be aggressively pursue all cost-effective demand side management? I think that's an appropriate action for the Company to take and the staff is interested in pursuing all cost effective demand side management. But in other words, they can avoid that the outcome or the result of your recommendation would be to file general rate cases as soon as possible? I think generate cases deal with true-ing it up after the fact.The return on equity, the risk that revenues won cover costs between rate cases, deals with the other part of it. Is the filing of frequent rate cases a goal that the Staff is advocating as far as recommendation? Well , I guess that may depend somewhat on what frequent rate cases are.The nine or ten-year period that the Company went between the 94-5 case and the 03-case think from Staff'view was long time and things got long ways out of balance.Now whether we have to have rate case every year or not, I don t know that we would look forward to that, but we get paid to work on rate cases.And if the Company chooses to file rate cases, that often will certainly be here. Okay.My last question deals with page 3 and onto 241 of your direct testimony.You were discussing the treatment of load growth before the PCA went into effect.Specifically, page 4, lines 2 and The revenues and costs associated with serving load growth were not necessarily balanced. I see that. Would you agree that achieving the symbalance of cost and revenue balance between rate cases is an appropriate policy goal for the Commission to consider? I missed the first part of that question.Could you ask it one more time? Would you agree that achieving the symbalance of cost and revenue balance between rate cases is an appropriate goal for the Commission to consider? I think that that's already addressed between rate cases by the business risks of whether those two things will balance, and that's captured in the return on equity.But as far dollar to pick out? already about fixed cost for dollar recovery is concerned, it's difficult And there has been much discussion in this hearing picking out one thing or the other , whether it be or a variable cost, and trying to match it with a revenue from selling an additional kwh.One thing that's known is that that's very difficult to do.And the only time you really do it thoroughly and do it right is when you have the advantage of looking back on that test year and matching those things -- those revenues and costs and balancing them.And 242 that's what a generate rate case does. MR. EDDIE:Thank you.I have nothing further. THE WITNESS:Thank you. COMMISSIONER SMITH:Mr. Thompson? MR. THOMPSON:We have no questions for Mr. Hessing. COMMISSIONER SMITH:Mr. Kline? MR. KLINE:Thank you, Madam Chair. CROSS- EXAMINATION BY MR. KLINE: Mr. Hessing, I would like to start off with some questions regarding the role that market sales and market purchases play in the load growth adj ustment amount that you have calculated and presented in this case.And in order to reduce the complexity of that a little bit because we have spent some time talking about it here today already.m hoping thi s will make it a little less complex.I would like to pose a hypothetical case and see if that can give us some additional insight as to how this would work.I need you to have you make a couple of assumptions.The first assumption is that year one Idaho Power has just completed a new generating plant.Let' call it Valmy And it is base load coal plant, 250 MGw.Next 243 assumption I would like you to make is that the variable cost of Valmy 3 is $20.I think that's generally consistent with the variable cost of a coal plant.Would you agree? Yeah.I think that's ballpark. Okay. The third assumption is that Valmy 3 makes the Company The fourth assumption is the market price is100 MGw surplus. $41, approximately the same as the load growth adjustment that you have computed and are proposing.At this point I would ask you the question then , Mr. Hessing, do you agree in this hypothetical, the difference between the $20 variable cost and the $41 market cost is Idaho Power s opportunity cost?Is that a -- Well, it is the difference between the embedded cost and the market price.And if you choose to call it an opportunity cost, I guess that's okay. You wouldn t disagree with it though? Not necessarily -- no, I wouldn Okay. I do have one question about your assumption.You talked about year 1, year -- those are relative to what? re getting there. Okay. Year 2 , this is the year after -- well, still in year one Idaho Power sells the surplus from Valmy 3 on the market and 244 it captures the opportunity cost , the $21 approximately.And the other PCA flows that through to its customers and they get the benefit.Now That wouldn t happen unless you were talking about after a rate case. Okay.All right.That's right.All right.Now, in year 2, Idaho Power s native load grows 10 MGw , okay? Okay. The variable cost is still 20, the market is still and the opportunity cost is still 21.Now, at this time when you got the load growing by 10 MGw , under your proposal there would be a $ 41 load growth adj ustment credit applied to the MGw of load growth; is that correct? Yes. All right.Now, assuming that we don I t change the way that we make rates in Idaho, does the Company have the option not to serve that 10 MGw of load growth and sell the 10 MGw at the opportunity cost in order to avoid the loss of that $21 that's the difference between variable and market? Well, I guess I agree that the Company does have the obligation to serve that load.I don t know that it's a loss of $21 because the company gets some revenues when they sell that load.And I don t know whether that's a loss or not. But the incremental amount that they have sold -- just the incrementals is what we re talking about here. 245 (Nods head. Well, let me ask it this way:Does the Company have the opportunity to charge the new 10 MGw $41 rather than $20? No.The Company doesn t have that opportunity. So I guess the next question is:Is -- other than the retail rate recovery of those costs in sales to the 10 MGw will Idaho Power ever get the cost $21 in opportunity costs under Staff's proposal? I believe that those costs -- well, you excluded the revenues from the retail sales.And I don t think it' appropriate to exclude that to begin with. Okay. But the fact that load grows and that there are costs associated with that, and the fact that there are revenues recovered are a business risk of the Company.And between rate cases -- it was that way before the PCA and that was fair then. I believe it's fair to continue to do that now and only deal wi th the power supply cost associated with fluctuating water condi tions and not load growth in the PCA. Let me ask you -- all right, let me direct your attention now to page 2 of your testimony, lines 6 and 7 there. And there you say the PCA was created to address the problem wi th fluctuating water conditions. Now , isn t it true Mr. Hessing that even in 1992 everybody acknowledged that the PCA would also address the 246 need to recover expenses associated with CSB proj ects.Isn that correct? Yes.The PCA -- that was a power supply cost that was included in the PACA at 100 percent. And those CSB weren t related to water fluctuations, were they? , they weren Before they were included the PCA, the Company had a deferral mechanism in place where they were referred until the general rate case.And they were allowed the company was allowed a 100 percent recovery in general rate cases, including in the PCA mechanism basically allowed them to be passed on an annual bases instead of a accumulated between rate cases because they were federally mandated. And isn t it true that this Commission actually directed Idaho Power to come in and file a case to avoid the increasing size of that deferral account?Do you remember that? I don t have a personal knowledge of that. Do you know what percentage of total power supply costs in the PCA on a normalized bases are attributable to CSBB expenses? Like Mr. Said recited earlier , I think it's roughly half. It's about forty-six or forty-seven million dollars for CSB and about the same for all other power supply expenses on a normali zed basis? 247 That's my understanding, yes. Do you know how much the non QF power supply expenses have grown over the period say since 1992?Have you ever looked at that? I haven And of course, on the non QF side it's true, isn t it, that variations come from much more than water conditions and changes in the power supply expense? Water conditions are -- well, in 1992 water conditions were the main driver.The power supply costs were a lot more stable -- not as much volatility and a lot lower.There are other things that affect power supply costs other than water condi tions, and one of them is load growth.And there are some others too. Coal costs? Yeah.The Staff's adjustment was aimed in the 1992 case at the variable cost of power supply associated with load growth because that was a big one and that was one we thought we could address and knew how to address , and so we fashioned the mechanism that was accepted by the Commission. And since 1992 the Commission has approved several other adj ustments to the PCA and how it's determined, have they not? There have been other things -- some have come and They were short-term things.Whether -- there have beengone. 248 other adj ustments that are still there. One example is several years ago we changed the true-up mechanism -- or calculations to be based on sales rather than loads.Isn t that correct? That's correct. And it's also true that we have added cloud-seeding expense as a component of the PCA? Yes.And that may not be there pass the next general rate case because some normal amount would be included in rates. I don t know that how that's going to work exactly, but it' there now. Yeah.And also it's true that we have adj usted the rate to include the emissions credits that are currently being flowed through; is that correct? That's correct. All right.So the fact is that the PCA really hasn been frozen or stagnant since 1992.If the Commission has found good reason to adj ust the PCA, it's done that to change it to accommoda te new conditions? That's true. If the Commission looks at the record in this case and looks at the things that have changed since 1992 -- things like the load growth that Idaho Power is currently experiencing; the volatili ty that it now sees in coal costs and gas costs.And if it makes a determination that today s conditions or so much 249 different than they were in 1992, that would be consistent with the way we have operated the PCA since the beginning, wouldn it? I believe that it's wi thin the Commission s authority to make changes because of changes that have happened and condi tions.Whether they choose to do that or where they choose to have those addressed in the way they have been traditionally addressed is their choice.And we re discussing those in this case. But it wouldn t be inconsistent with the way we have done the PCA previous? I believe the Commission could choose to change the PCA to address power supply costs associated with load growth differently than it has done in the past. MR. KLINE:Thank you.That's all the questions I have. COMMISSIONER SMITH:Do we have questions from the Commission? COMMISSIONER HANSEN:No. COMMISSIONER KJELLANDER:No. CROSS-EXAMINATION BY COMMISSIONER SMITH: Kei th, I think -- I thought I understand this, but now 250 not sure.So just help me with this one thing that has come up since your discussion with Mr. Kline.Are revenues from off system sales run through the PCA for the benefit of customers? Net power supply cost set in generate case include basically four accounts.And one of those accounts is 447, which is revenues from off-system sales.Now , purchase power, costs are there, and fuel costs for coal and gas are there also. They are run through the PCA and always have been because the Company, even though it has a resource that may not be used at that particular time, may choose to purchase power.You know there have been a lot of discussion about secondary sales revenues and whether that's appropriate, but the Company proposal is to exclude purchase power costs and secondary sales revenue.And so the Company can choose to purchase power because it's cheaper than generating its own resources.And on the secondary sales revenue side , it's been from my view those costs have been in the PCA A and should be in this adj ustment calculation because secondary sales are in the mechanism and they have been there.And the Company makes choices.Now , the point was brought out here that the Company doesn -- it has an obligation to serve new load, but it doesn t have an obligation to sell power to these people they sell power to.The obligation the Company has with regard to secondary sales revenue is customers are paying for that resource and a big Company has an obligation to mitigate the cost.And so the 251 Company sells when it can and make a profit on it and that mitigates costs.All of these things are tied together in the PCA mechanism and need to be there in order to remove the power supply costs associated with load growth.I don t know; I think I got your question. Well , I hadn t got to my question yet, which is back to my simplistic view of simplistic regulations.But if the revenue from the off-system sales is flown back in the PCA to reduce the power supply and thus we benefit the customers through their ratings, then how is the Company out anything if the -- in Mr. Kline s hypothetical , the off-system sales are reduced by ten megawatts. Well, the numbers -- the dollars that are actually are in the PCA mechanism , part of the differences between secondary sales and a normalized circumstance; and the difference in secondary sales and the difference with load growth.And secondary sales are reduced when the company grow load, as has been pointed out.Purchase power costs are also reduced -- sorry, increased; and fuel costs are increased.Those things all work together in the PCA mechanism to benefit customers or harm customers, if you want to view it that way -- cost customers money.And it's Staff's belief that all of the things need to be addressed and adj usted because they interplay.One wi thout the other is meaningless. COMMISSIONER SMITH:Do you have any 252 redirect, Woodbury? MR. WOODBURY:I have no further customers. COMMISSIONER SMITH:Thank you, Mr. Hessing. According to my notebook that's the end of the witnesses. Does any party wish the opportunity for closing statements or to file lengthy legal briefs? (No response. COMMISSIONER SMITH:Well , then seeing nothing further to come before the Commission in this hearing or after it, I will declare that the record in this case is closed. And the Commission will deliberate upon this and issue an order as speedily as possible.I don t know of any time constraints on this. Any reason why it has to be done by a date certain? (No response. COMMISSIONER SMITH:So we will get to it as quickly as we can. (Proceedings concluded at 2:35 p. 253 This is to certify that the foregoing is a true and correct transcript to the best of my ability of the proceedings held IN THE MATTER OF PETITION OF IDAHO POWER Company FOR MODIFICATION OF THE LOAD GROWTH ADJUSTMENT FACTOR WITHIN THE POWER COST ADJUSTMENT (PCA) METHODOLOGY commencing on Monday, October 30, 2006 at the Commission hearing Room , 472 West Washington Street Boise, Idaho , and the original thereon for the file of the Commission. Accuracy of all pre-filed testimony to this Reporter and incorporated herein Commission is the sole responsibility of as originally submitted at the direction of thethe submitting parties. ~ , -.