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HomeMy WebLinkAbout20180126Angell Rebuttal.pdfIJ.ECEIVED ?0i8 JA,q 26 PH h: 29 r-. ' '^, f)r :;.:.i iai ' -ll-: ,.,;;1 ' . ''-l'i :' l.i ''0i''i'liiSl0N BEFORE THE IDAHO PUBLIC UT]LITIES COMMISSION IN THE MATTER OF THE APPLICATION OF IDAHO POWER COMPANY FOR AUTHORITY TO ESTABLISH NEW SCHEDULES FOR RESIDENTIAL AND SMALL GENERAL SERVICE CUSTOMERS WITH ON-SITE GENERATION. CASE NO. IPC-E-17_13 IDAHO POWER COMPANY REBUTTAL TESTIMONY OE DAV]D M. ANGELL ) ) ) ) ) ) ) 1 2 3 4 5 6 7 B 9 O. Pl-ease state your name. A. My name is David M. Ange11. O. Are you the same David M. Ange11 that previously presented direct testimony? A. Yes. O. Have you had the opportunity to review the pre-filed direct testimony of the City of Boise's witness Stephan L. Burgos; the Idaho Clean Energy Association, Inc.'s ("ICEA") witnesses Kevj-n King, Michael Leonard, and Stephen White; the Idaho Conservation League's (*ICL") witness Benjamin J. Ottoi Sierra Club's witness R. Thomas Beach; the Idaho Irrigation Pumpers Association, fnc's wltness Anthony J. Yankel; the Snake River Al-li-ance and NW Energy Coalition's (*SRA/NW Energy") witness Amanda M. 15 Levin; Vote Solar's witness Briana Kober,' Auric So1ar, Utilities76 LLC's witness Elias Blshop; and the fdaho Public 77 Commission ("Commission") Staff's ("Staff") witnesses 1B Mlchael Morrison and Stacey Donohue? have.19 Yes, I What is the 10 11 72 13 74 ZU 27 The 22 present evidence 25 scope of your rebuttal testimony? of my rebuttal testimony is to Ioad service requirements and residential and small general23 usage characterlstlcs of 24 service (*R&SGS") are different than A o A purpose that the customers who instal-l- on-site generation that of R&SGS customers without on-slte ANGELL, REB 1 Idaho Power Company 1 2 3 4 5 6 1 d 9 generation, and to respond to various arguments raised by intervening parties and Staff in their direct testimonies. My testimony is comprised of three sections. In Section I, I explain in detail, the additional- analyses performed by the Company and how the Company has demonstrated that the load service requirements and pattern of use are distinctly different for residential customers with on-site generation as compared to residential customers without on-site qeneration. fn Section II, I explain how the utilization of the grid by customers with on-site generation 1s distinct and dj-scuss the lmpacts to the grid. In Section IIf, I explain why the proposed changes to Schedule 12 are very minor and can easily be addressed as part of this case. I wil-l also explain that the Commission and Staff wiII have the opportunity to review the Institute of Electrical and Electronic Engineers (*IEEE") requirements before it is adopted. I. A}IAIYSIS SUPPORTING ESTABLISHMENT OF SEPARATE CI,ASSES 10 11 72 13 14 15 76 71 1B 19 20 2I 22 23 24 O. Did other parties agree with Company ("Idaho Power" or "Company") that with on-site generation are different than customers and therefore require a separate Idaho Power R&SGS customers standard R&SGS customer cl-ass? ANGELL, REB Idaho Power 2 Company 25 1 2 3 4 5 6 1 B 9 A Company did not R&SGS customers R&SGS customers No. Several partiesl suggested that the provide sufficient evidence to justify that with on-site generation are different than without on-site generation. 10 O. What factors distingulsh customers with does the Company believe on-site generation from those without on-site generation? A. The Company continues to believe that the Ioad service requirement and the pattern of use shoul-d be used to evaluate whether a segment of customers is different from their current customer classification. 1. Load Servi,ce Re+l+qengq! 11 72 13 O. How does the l-oad service requirement of a 74 customer with on-site generation differ from that of a 15 standard service residential customer? L6 A. The load service requlrements of a customer 71 with on-si-te generation is fundamentally different than 18 that of a customer without on-site generation. Customers L9 with on-site generation are "partial requi-rements" 20 customers. A partial requirements customer is one who 2L generates al-l- or some of their own electricity. The 22 utility provides only part of the customer's energy needs. 23 Partial- requirements customers still- require a varlety of t. J 1 Levin DI, p. 1, Donohue DI, p. t, ff. 9-10; Kobor DI, p. 32,1. 18 through p. 33, Itr ANGELL, REB Idaho Power 3 Company 1 Z 3 4 5 6 1 9 servj-ces from the utiJ-ity even al-I thej-r own energy. So long connected to the utility, they services from the utility. As testimony, include: motor loads such though they provide some or as these customers remain conti-nue to take other described in my direct in-rush current requirements as air conditioning the ancillary services they require typically capacity to meet the for starting compressors, availabl-e at supplemental services night, and frequency when solar is not services to maintain 10 power quality. fdaho Power can economically provide 11 partial requirements service that al-l-ows customers with on- 1,2 site generation flexibility in meeting their energy needs 13 with the reassurance that the utility is avaj-labl-e to 74 handle al-I their el-ectrical needs should their on-si-te 15 generation be interrupted or fail. 16 0. What analyses did the Company perform to L7 evaluate the load service requi-rement? 18 A. The Company studied the load factor for both 19 groups of customers. 20 Load Factor 27 O.Why is the load factor an important measure to with on-site22 determine that residential customers 23 generation are different than residential customers without on-site generation?24 ANGELL, REB Idaho Power 4 Company 25 1 A. The l-oad factor is the average load divided by 2 the peak load in a specified time period. It is a measure 3 of variabil-ity of consumption; a low Ioad factor indicates 4 that load is hiqhly variable, compared to consumers with 5 steady consumption. The more consj-stent the consumption, 6 the higher the load factor. A l-ow l-oad factor identifies a 7 customer with infrequent high demand and the capacity 8 required to serve that peak demand sits idl-e for long 9 periods. Thus, customers with a lower l-oad factor use the 10 Idaho Power system capacity less efficiently and, when 11 considering the existing rate design which col-l-ects most \2 fixed costs for system capacity, through the volumetric 13 kilowatt-hour ("kwh") charge, are subsidized by customers L4 with higher load factors. 15 O. Pl-ease describe the load factor analysis that 16 was performed by the Company. 71 A. The Company ca1culated the monthly load 18 factors for residential customers with on-site generation 1,9 and residential customers without on-site generation who 20 were billed for energy in the 2016 cal-endar year. The 2L analysi-s inc1uded all- Idaho residential customers and al-l- 22 Idaho residential customers with on-site generatj-on. To 23 calculate the monthly average kwh, the bifled energy was 24 divided by the number of days in the biIIlng period which 25 was then divided by 24 hours. For each customer, the ANGELL, REB 5 Idaho Power Company 1 average kWh was then divided by the segments largest kwh 2 for each billing period. 3 Q. What did the Company's load factor analysis 4 conclude? 5 A. The Company's load factor analysis 6 demonstrated that residential customers with on-site 7 generation have notably lower load factors than residential 8 customers without on-sj-te generation. The monthly load 9 factors for both groups are provided in Figure 1. 10 Figrre 1. Averagte Monttrly Load Factor Average Load Factor 30% 25% 20o/o L5% L0% 5% o%llllr MayFeb Mar Apr DecNovJulJunAugsepOct 11 t2 13 t4 15 t6 77 r Residential r Net metered O. Please summarize your conclusions of the l-oad factor analysis. A. Residential customers with on-site generation consistently have notably lower l-oad factors than residential customers without on-site generation. In fact, for months May through August, the l-oad factor for the customers with on-site generation is l-ess than half of the ANGELL, REB 6 Idaho Power Company 18 1 2 3 4 5 6 1 B 9 residential customers without on-site generatj-on. The Company also compared the annual load factor of both qroups of customers. While the annual- load factor was generally better for both groups, 2L percent for residential customers with on-site generation and 45 percent for residential customers without on-site generation, the annual load factor for residential customers with on-site generation was still less than half of the residential customers without on-site generation. 10 2. Pattern of Usag'e 11 O. Did the Company perform additional- analyses on 12 the use patterns of resldential customers with on-site 13 generation and residential customers wlthout on-sj-te 74 generation? 15 A. Yes. 1,6 O. What analyses did the Company perform to 77 eva1uate the pattern of use of both groups? 18 A. The Company studied the load profile, system- 79 coincident demands (*SCD"), and non-coincident demands 20 (*NCD"), for both groups of customers. 2L Load Profil-e 22 O. dld the Company initially proflle of either group? Regarding the load profile for both perform any analyses of groups, the load23 24 25 ANGELL, REB 1 Idaho Power Company 1 2 3 4 5 6 1 I A. Yes. In her dj-rect testimony, Connie A. Aschenbrenner presented a graph comparing the average hourly consumption of a customer with on-site generatj-on to that of a residential- customer without on-site generati-on on June 29, 20L6.2 I have reproduced Ms. Aschenbrenner's graph as Figure 2. 2. Average Load Shapes for Residential. Customers and Residentia]. Net 9 10 O. Does Staff agree with the Company that 11 customers with on-site generation are different than 72 standard service customers? 13 A. No. Dr. Morrison states that "there are no L4 meaningful differences between net metering and non-net 15 metering customers in the quantities of electricity used, 16 dj-fferences in conditions of service, time, nature, and Figtrre Service Standard'Customers. ANGELL, REB Idaho Power 8 Company t 2 3 4 5 6 7 8 9 1011L273L4L576L7 18192021222324 Hour Ending -Residential Net Metering -Residential Standard service -1.00 -2.00 4.00 3.00 2.00 1.003 0.00 2 Aschenbrenner DI, p. 28, Figure 3. 1 2 3 4 5 6 1 B 9 pattern of use."3 Dr. Morrison goes on to say "the distribution of indivldual consumption patterns from both groups is nearly identical-" and "Ic]onsumption patterns of both groups are similar . ."4 O. Do you agree with this assessment that the consumption patterns of both groups are simifar? A. No. I bel-ieve that the two load proflles shown in Eigure 2 above are distlnctly dlfferent. They are different for many reasons. The first and most obvious dlfference is that an average customer with on-site generation has negative consumption, meaning that energy flows to the utility. The second difference 1s that the customer with on-site 10 11 72 13 average demand74 for 15 The third energy during the difference 1s that generation evenlng and the rate of has a higher nighttime hours. change in usage by the day 1s without on-site 16 customers wi-th on-sj-te generation during L1 s igni fi cant 1y generation. o. of both groups A. larger than for customers 1B 79 Did Commission Staff study the load patterns 20 2t of customers? Yes. Dr. Morrison of Commission Staff 22 presented a graph comparing the consumption patterns of 3 Morrison Df, p. a Morrison DI, p. 4, I. 25 - p. 5, 11 , rt-. 2-6. 1. 4 ANGELL, REB 9 Idaho Power Company 1 2 3 4 5 6 1 B 9 average residential customers with on-site generation to that of a residential customer without on-site generation.s O. Was the graph that Dr. Morrj-son provided consistent with the graph that Ms. Aschenbrenner lncl-uded 1n her t.estimony to il-lustrate the hourJ-y consumption of an average customer with on-site generation compared to an average customer without on-site generation? values that each plotted difference between the two created a fine chart and Other than that, the A Yes. In the appear to be the same.only the same. fact, The 10 graphs is that Ms. Aschenbrenner 11 Dr. Morrison created a bar chart. 72 charts are virtually 13 O. Did the Company perform additional- analyses to 74 study the load profile of both groups of customers? 15 A. Yes. Because the Company's initial analysis 76 focused on a single duy, the Company's summer peak duy, the 71 Company performed additional analyses to study the l-oad 18 profile of both groups over the course of a month. The 19 Company analyzed all 12 months of 2016 and has shared the 20 results for a wj-nter month, a spring month (a1so 27 representative of fall-), and a summer month in Figures 3, 22 4, and 5 respectively. For the three graphs, each hour 23 data point is the average for that hour throughout the 24 month. ANGELL, REB 10 Idaho Power Company s Morrison DI, p. 15, Eigure 2 1 Figure 3. January 2OL6 Average Hourly Use - I[inter Peak January Load Profiles -CBY 3.50 3.00 2.s0 2.00 1.50 1.00 0.s0 0.00 1'2 3 4 5 6 7 I 9 101112L3t4 1515171819202L222324 -ftssi(snfi3l -NetMetering2 3 Figure 4. ApriJ. 2OL6 Average Hourly Use - Shoulder Month April Load Profiles 2.00 1.50 1.00 0.50 3 0.00.Y -0.s0 -1.00 -1.50 -2.00 L234s678910 t9 20 27 22 23 24 -ftssidgn{i6l - Net Metering 4 5 Figrure 5. ,fune 2OLG Averag'e Hourly Use - Sr:mmer Month June Load Profiles 3.00 2.00 1.00 B -:z 0.00 L23456789 18 19 20 2t 22 23 24 -L.00 6 ANGELL, REB 11 Idaho Power Company tL2L3L4L5L617 72 13 L4 L5 -2.00 -Residential -NetMetering 1 2 3 4 5 6 1 I 9 U Pl-ease summarize your conclusions of the Ioad profile analysis. A.Eor a1l- three months, customers with on-site generation had a higher demand for energy during the 10 evening and nighttime hours than customers without. on-site 11 O. Do in Figures 3, 4, A. No. regardj-ng Figure different. you believe the or 5 are nearJ-y than for customers load profiles identical- or of each group even similar? Once again, for the reasons I noted 2, the load prof iles cont j-nue to be and their rate ofgeneration is larger o.What other differences in usage during the day on-site generation. were di-scovered in the change without12 13 74 15 L6 71 1B 19 20 2L a.)LL 23 analysis of the load profiles? A. The obvious difference is that customers with on-site generation have negative consumption that is energy fl-ows to the utility. This represents the amount of excess energy produced by the customers' on-site generation. The Company did notice that the amount of excess generatlon varies from month to month. During January, as a class, the customers with on- site generation do not generate particular interest, the resul-ts excess energy. Of 24 demonstrate that, not only do the for the month of Aprj-1 customers with on-site 25 qeneration generate excess energy, they generate more ANGELL, REB Idaho Power 72 Company 1 excess energy on a per-customer basis than in June. This 2 large spring excess occurs when the electrical market is 3 flooded with excess energy and energy prices are 4 significantly depressed. The rate of change in usage 5 during the days in April is greater than during June. It 6 also comes as no surprise that during June, customers with 7 on-site generati-on do generate excess energy. The Company B noted that, when looking at the entire summer month, the 9 magnitude of excess energy was larger than when looking at 10 the peak day only (as was done in Figure 2) . 11 O. Why is the rate of change significant? 12 A. As described in my direct testimony, the 13 Company schedules and dispatches generation along with 14 automatlc generation control- to bal-ance generation to load 15 at every instant in time. Maintaining this bal-ance during L6 high rate of change periods requires more generation L1 dispatches compared to other slower changing periods. 18 Additionally, the highly economj-c hydroelectric system is 79 constrained in its abllity to balance such rapid changes 20 due to river flow ramping fimits. This constraint causes 2l the Company to dlspatch l-ess economic resources resulting 22 in higher energy costs for retail- customers. 23 System-Coincident and Non-Coincident Demands 24 (l You mentioned that an analysis was performed customers25 on the system-coincident and NCDs of resldential ANGELL, REB Idaho Power 13 Company 1 with on-site generation and residential- customers wj-thout 2 on-site generation. What analysis did the Company perform? 3 A. The Company calculated the 201-6 system- 4 coincident and NCDs for both groups of customers. The SCD 5 is the average demand for the customer class at the time of 6 Idaho Power's system peak. The NCD is the maximum average 7 demand for the customer cl-ass regardless of when it 8 happens. System-coincident and NCDs were calcul-ated for 9 each month. 10 O. What did you observe from your analysis of the 11 SCDs for both groups of customers? 12 A. The monthly SCD of customers with on-site 13 generation is l-ower than customers without on-site 14 generation from April through September; however, it is 15 higher than customers without on-site generation from 16 October through March. The monthly SCDs for both groups of L7 customers are shown in Figure 6. 18 Figrrre 6. 2OL6 Systen-Coincident Denands by Month System-Coincident Dema nd 5.00 4.00 3.00 = 2.oo 1.00 (1.00) llr Lllltrll Jan Feb Mar Apr May Jun I Residential System-Coincident Demand Jul Aug Sep Oct Nov f NEM System-Coincident Demand Dec t9 ANGELL, REB L4 Idaho Power Company 1 2 3 4 5 6 1 B 9 O. Why is the SCD an important measure when evaluating whether a segment of customers is different from their current customer cl-assi-fication? A. SCDs are used to allocate costs amongst the Company's different customer classes. Ms. Aschenbrenner explains how costs are allocated using the SCDs. e O. What observatj-ons are drawn from the analysis of the NCDs for both groups of customers? A. The NCD of customers with on-site generati-on is higher than customers without on-site generation for al-I 12 months of the year. During the wj-nter months, the non- coincident of customers with on-site generation is more than 60 percent higher than the NCD of customers without on-site generati-on. The NCDs for both groups of customers are shown in Eigure 7. Figrure 7. 2OLG t{on-Coincident Denands by Month Non-Coincident Demand 10 11 72 13 74 15 76 l1 s.00 4.00 3.00 2.00 1.00 =J Dec ill Sep Oct NovAug lll Jan Feb Mar Apr May .lun I Residential Non-Coincident Demand Jul I NEM Non-Coincident Demand 6 Aschenbrenner REB, p. 12,1. 14 through p. 13, f. 2. ANGELL, REB Idaho Power 15 Company 1 2 3 4 5 6 1 8 9 o.Why is the NCD an important measure when customers is different fromevaluating whether a segment of their current customer cl-assification? A The non-coincident group peak demand is used to a1locate costs among the classes. Ms. Aschenbrenner Company's different customer explains costs are allocated using the non-coincident group peak demand. O. Did any other parties conduct an analysis system-coincident and NCDs for both groups? A. Yes. Dr. Morrison of Commission Staff of 10 11 cal-culated the system-coincident and NCDs for both groups.T L2 O. Were the resul-ts of Dr. Morrison's study 13 consistent with the results of the Company's study? L4 A. Yes. Dr. Morrison filed a revision to his 15 direct testimony on January ll, 20L8, and with Dr. 16 Morrison's revised computation, the results of his study 71 are consistent with the results of the Company's study. 18 O. Pl-ease summarize the conclusions the Company 19 has made after having performed these various analyses. 20 A. The results of additional analyses performed 27 by the Company demonstrate that the load factor, the load 22 profile, the SCDs and the NCDs for R&SGS customers with on- 23 site generation are distinctly different than R&SGS 24 customers without on-site generation. The Company has 7 Morrj-son DI, p. 18, l. 13; p. 19, 11. 2-4. ANGELL, REB Idaho Power L6 Company 1 2 3 4 5 6 1 B 9 clearly demonstrated that the load servi-ce requirement and different for residential-the pattern of use arq customers wlth on-site residential customers wi-thout on-site distinctJ-y generation compared to generatlon. AS 10 II. UTILIZATION OF THE GRID 1. Impact on the Grid 0. Ms. Donohue claims that "net meterlng has mlnimal grid impacts . ." 8 Does the Company agree with Ms. Donohue' s statement? A. No. Each net metering instal-l-ation has a sma1l lmpact on the voltage management of a distribution circuit. Low net metering penetration on a circuit is accommodated without changes to the voltage management. However, Iarge penetration has significant grid impacts that require mitigation measures and is dj-scussed in my Direct Testimony. O. Several witnessese assert that the excess 11 t2 13 14 15 76 71 1B energy generated by customers with on-site generation is t9 consumed by neighboring loads. Do you agree with this 20 assertion? 2L A. In a broad, general sense this is true. The 22 assertj-on that the excess energy is consumed by neighboring 8 Donohue DI. p. 7, 1 l. 1-8. e Kobor DI, p 11. 18-19. 63, If. 1-8; Otto DI, p. 5, 1. 18; Beach DI, p. 24, ANGELL, REB Idaho Power l1 Company 1 Z 3 4 5 6 1 8 9 Ioads assumes that neighbors are consuming in unison with the customer's on-site generation excess producti-on. Fiqure 4 demonstrates the difference excess production and consumption of site generation. The 2:00 p.m. hour without on-site generation load at 1 production at 1.8 kwhsite generator in on-site generation customers without on- reflects the customer kWh and the excess on- Therefore, on 10 average, two required to with on-site customers without on-site generation are consume the excess generatron When the excess of one customer generation.energy exceeds 11 the neighbors' consumptJ-on, which is Iikely to occur in the L2 spring and fal-l- months, the excess flows through the 13 distribution system, and at times, to the transmission L4 system. 15 O. Mr. Leonard cl-aims that: "There are also L6 extremel-y good grid benefits by lowering l1ne l-osses on the L1 distributed energy side and increasing power quality." to Do 18 you agree with his claim? 19 A. I agree that some line losses may be reduced 20 with distributed generation (*DG") as described in the 2l Company's community solar case.11 In that case, my testimony 22 identified that the transmission, substation, and 10 Leonard DI, p. 5, l-I . 2-3 tr In the l"Iatter of Idaho Power Company's Application to Approve New Tariff Schedufe 63, A Community Solar Pilot Program, Case No. IPC- E-16-14. ANGELL, REB Idaho Power 101U Company 1 distribution primary losses woul-d be offset but the 2 secondary l-osses will continue to be present. This outcome 3 was determined by compari-ng the load profile of the 4 customers located near the proposed community solar project 5 to the projected sol-ar production profile. The Company 6 determined that l-ocal- customer load would consume the 7 projected sol-ar generation at all times. The existing DG B energy production, forecasted DG production, DG locations, 9 forecasted DG locations, and annual feeder load profiles 10 would need to be analyzed to determine the proper line foss 11 allocation. \2 I do not agree with the assertion of increased power 13 quality. Distribution cj-rcui-t voltage variability L4 increases with DG, resulting 1n reduced power quality. In 15 fact, the Company performs voltage flicker analysis (a 16 power quality issue) during the small and large generator 11 interconnection study process when distribution system 1B interconnection is requested. This condition is described 79 in Sectlon IV of my direct testimony, 12 re1ated to the 20 request for requiring future and described smart inverter functionality in the 22 Does on-site generation have a similar impact 27 O. 23 to the grid as when a customer install-s an energy 24 efficiency (*EE") measure? in the next section of this testimony. ANGELL, REB 19 Idaho Power Company \2 Angell DI, pp. 23-21. 1 A. No. The grid impact is different because, 2 when a customer with on-si-te generation is generating 3 excess energy, their system can stop generating at any 4 moment. When this occurs, the Company must j-nstantaneously 5 supply not only their load that was supplied by their own 6 generatj-on, but al-so the excess generation they were 7 contributing to the system. This change in the direction B of supply will also negatively impact the distribution 9 system voltage. 10 O. How does an instantaneous loss of suppJ-y by 11 the customer with on-site generation impact the grid? 12 A. The Company and its grid must always maintain 13 the balance of generation and l-oad. When a loss of supply 14 from on-site generation occurs, the grid must supply the 15 customer load and any excess generation that was being 16 produced. As shown 1n Eigure 4, during the 2:00 p.m. peak 11 export hour, the grid may have to instantaneously supply 18 the customer energy and excess generati-on of greater than 19 2.8L kwh (assuming 1 kwh or greater energy consumption by 20 the customer with on-site generation). 2L Additionally, a change in the dj-rection of supply 22 will- change the circuit voltage. This results from voltage 23 drop the decrease in the voltage along a conductor due 24 to the flow of current through the conductor. The voJ-tage 25 at the current source location wil-l be hi-gher than other ANGELL, REB Idaho Power 20 Company T 2 3 4 5 6 1 B 9 locations along the distribution circuit. When a customer with on-si-te generation is sourcing current (exporting energy) to the distribution circuit, its voltage, including its neighbors' voltage, will be higher than other locations on the circuit due to voltage drop. Once the customer stops sourcing (e.9., when a cloud passes over the solar panels), the l-ocal higher voltage immediately drops to a l-ower voltage based on voltage drop from the substation to the customer location. These quick changes result in reduced power quality. O. Several partles compare on-site generation to EE.13 Some even suggest that on-site generation "wil-l- reduce a customer's long-term consumption from the grid, just as an energy efficiency measure . ."14 Do you agree that on-site generati-on reduces a customer's long-term consumptlon from the grid similar to that of an EE measure? A. No. On-site generation is significantly different than EE. On-site generation will produce energy based on the profile of the generating resource. Solar production varies daily and throughout the year based on the angle of incidence of the sun to the solar panels and weather conditions. This solar production is not related 13 Beach DI, p. 1l , ll- . '7 -8; Donohue DI, p. 18, 1l- . 2-4; Kobor DI, p. 50, t. 20 through p. 51, 1. 1. 10 11 72 13 74 15 16 l1 1B 79 20 27 )) 1a Beach DI, p. 5, 1I. 3-4 ANGELL, REB Idaho Power 2L Company 1 to the energy consumed by the customer. EE measures 2 directly reduce the consumption of the el-ectrical- equipment 3 all- the time it is operating throughout the year. When the 4 equipment is runni-ng, one can count on EE occurring. The 5 efficiency does not ramp in and out of operation Iike a 6 solar generation system. 1 Q. How does the l-oad shape of a customer who B participates in EE compare to that of a customer who 9 installs on-site generate on? 10 A. As discussed by Dr. Ahmad Faruquits of the 11 Brattl-e Group in his rebuttal testimony, the load shape of 72 customers with on-site generatlon differs significantly 13 from those of customers who participate in EE programs. I 74 previously discussed the significance of the rate of change 15 and how that impacts grid operations. The greater the rate L6 of change, the more volatile the load shape. EE measures 71 may reduce energy use through the day or just reduce the 18 peak use periods. Either outcome is not 1ike1y to increase 19 the load volatility. 20 This is in contrast to a customer who instal-l-s on- 2t site generation -- which would increase the volatil-ity of 22 the customer's load profile. This can be explained by 23 looking at both the level of demand (kW) placed on the 24 system and the amount of energy (kwh) consumed over time. 1s Faruqui REB, p. 10, 1. 8 through p. 13, I. 3 ANGELL, REB Idaho Power 22 Company 1 2 3 4 5 6 1 B 9 When a energy demand reduce not the ( kilowatts the amount case with customer installs an EE measure to reduce their consumption, they may reduce both the instantaneous (*kW") ) that they place of energy consumed over a customer who reduces on the grid and time. This is their an energy on-si-teconsumption generation cal-l-ed upon requirement using on-site system is not to provide is the same generation. When generati-ng, and the utility is the energy, the customer's load as it was before the on-site 10 generatlon generally placed on generat j-on system was installed. In other no reduction of the instantaneous words, there is demand11 72 13 76 77 customer with (kl/i) on-sitethe utility's system. The does, however, reduce the amount of 74 they consume from the Company but not achieve energy (kwh) any reduction 15 in total energy use. . Other than having different i-mpacts on the 1B grid, what other differences exist between customers who reduce their energy usage by installing EE measures and by install-j-ng on-site generation? A. A customer with on-site generation has the opportunity to net thelr bill-ed energy all the way to zero whj-l-e st111 util-izing the grid; whereas, a customer who reduces their energy consumption by instal-l-lng EE measures is not able to do that unl-ess they consume no energy from the utility for the entj-re month. 19 20 2t 22 23 24 ANGELL, REB Idaho Power 23 Company 25 1 2 3 4 5 6 1 8 9 o. assertion that Did any parties disagree with you in your customers with on-site generation who net zero are not the same as a vacation hometheir usage with no kwh A. disagrees.16 to usage in a month? Yes. Commission Staff witness She suggests that, because both Donohue groups of customers withcustomers are subsidized by other customers, on-site generation who net different than a vacation their usage to zero are not home with no kWh usage in a 10 month. 11 a) 72 vacation home In what ways wlth no kwh does usage the Company assert that a is different than a net 13 14 15 zero customer, a customer who generated either the same amount or more energy from their system than they consumed over the course of the month? A. In addition to the differences listed by Ms.t5 71 Aschenbrenner in her direct testimony, ll 1B substantial differences in the services 19 provides the course of the20 month. The Company provides no services to 2L the vacant home that consumes no energy. However, in the customer with on-site not generating or is not 22 16 Donohue DI, p. 16, 11 . 1,8-25 . 17 Aschenbrenner DI, p. 30, I. 8. - p. 31. l-. 13 there are that the Company vacant home and net zero customer over the addition to providing generation when their energy to system is ANGELL, REB Idaho Power 24 Company z3 1 2 3 4 5 6 7 B 9 generating enough energy to meet their demand, the Company also provides regulated voltage for inverter operation, motor starting current, and energy balancj-ng when the customer is generating electricity. 2. Excess Generation O. Ms. Donohue suggests that "most of the energy produced [by net metering customers] is consumed on-site rather than pushed back onto the 9rid. "te Does the Company agree that most of the energy produced by customers with on-site generation is consumed on-site rather than flowing back onto the grid? A. Yes. However, the Company performed an analysi-s to quantify how much energy generated from residential on-site generation flowed onto the grid. Figure 9 provides the monthly net consumption and the excess generation produced by the 565 net metering customers who had 12 months of billing data during 20L6. The graph also incfudes the monthly percentage of excess generation as compare to the net consumption. As you can ?"", there are months when the residential customers with on-site generation generated in excess of 60 percent of their net consumptj-on. 10 11 t2 13 L4 15 76 71 1B t9 20 2t ZZ 23 18 Donohue DI, p. J, 1I. 8-9 ANGELL, REB 25 Idaho Power Company 24 1 Figure 9. 2OL6 Net Consr:mption and Excess Generation TOLG Residential Net Consumption and Excess Generation t,400 L,200 1,000 800 500 400 200 Jan Feb Mar r Excess Generation -g3 = 70o/o 60% s0% 40% 30% 20% L0% o%I ilil Aug SeptApr May Jun IConsumption Oct Nov Dec - Percentage Net Consumption Jul 2 3 4 5 6 1 8 9 O. How much excess generation does the average resj-dential customer wj-th on-site generation exchange with the grid each month? A. The Company's analysis shows that, in January and December, the average resj-dential- customer with on-site generation consumes most of their generation and has very little excess generatlon; however, for the remaining months, particularly April through September, customers have anywhere from 678 to 1,005 kwh of excess generation per month. Table 2 lists the average excess generation produced by a residential customer with on-site generation, by month. ANGELL, REB 26 Idaho Power Company 10 11 t2 13 L4 15 t6 t1 1 TabJ.e 2. Average Monthly Excess Generation per Customer Average Excess Generation (kllh) January February March April May June July August September October November December Month 0 336 480 1,005 936 113 618 693 759 321 161 0 2 3 4 5 6 1 B 9 3. Net Zero Customers a. Ms. Donohue references Dr. Morrison's analysis showing that only about 11.5 percent of customers with on- site generation are net zero.te Do you agree wlth the resul-ts of his analysis? A. I agree that on an annual basis, there are approximately 11.5 percent of customers with on-site generation who are net zero; however, that number does not represent the number of customers with on-site generation who are nearly net zero or who are net zero on a monthly basis. O. Has the Company performed an analysis of the 14 number of customers with on-site generation who are net 15 zero on a monthly basis? 1,6 10 11 L2 13 1e Donohue DI, p. 19, l-l-. 4-'7 ANGELL, REB Idaho Power 21 Company 1 A. Yes. Using the same 2076 dataset for the 565 2 residential- net metering customers who had 12 months of 3 bilfing data during 20!6, the Company calculated that, for 4 three of the 72 months, more than 40 percent of customers 5 with on-site generatj-on netted their usage to zero and for 6 an additional- four months, more than 30 percent of 7 customers with on-site generation netted their usage to 8 zero. Figure 10 shows the percentages of net zero 9 customers for each month. 10 Figure 10. Percent of Net Zero Customers by Month in 2016 Percent of Net Zero NEM Customers (by month) t00% 90% 80% 70% 60% s0% 40% 30% 20% to% o%ll .Ju I sep I Dec I Nov I Oct I AugJan Feb Mar Apr May Jun11 L2 13 t4 15 16 L1 1B t9 4. Two-ttay Flow is Distinct to Customers with On-Site Generation O. Do any partj-es disagree with your assertion that customers with on-site generation have a two-way rel-ationship with the grid? A. Yes. Ms. Levin of SRA/NW Energy suggests that: "With advanced metering infrastructure ("AMI"), any customer can have a two-way relationship with the grid. ANGELL, REB 28 Idaho Power Company 20 1 2 3 4 5 6 1 B 9 AMI al-l-ows all customers, and any of their "smart" (grid- enabled) devices, to follow and track customer usage, system conditions, and energy prices and respond to this information . ."20 O. Do you agree with Ms. Levin that this "two- way" fl-ow of j-nformation is the same as the "two-way" flow of energy? A. No. AMI allows the utility two-way communication with customer meters and, depending on the technol-ogy deployed, may provide the customer with information as Ms. Levin described. The customer may even act based on the information provided. However, the customer is not in a two-way relationship with the grid. The customer is simply making informed energy use cholces that may decrease or increase their demand. This 1s not at aI] simil-ar to the production of energy by R&SGS customers with on-site generation whose production is driven by daily solar irradiance, not information that might be provided by an electric uti11ty. O. Do any other parties disagree with you that customers with on-site generation use the grid in a bi- directional manner? A. Yes. Sj-erra Club witness Mr. Beach suggests that the Company's thinklng is flawed. He claims that: 10 11 72 13 L4 15 L6 L1 1B 79 20 27 ZZ 23 z4 [W]hen a sol-ar customer exports power tothe utility, it is the sol-ar customer 20 Levin DI, p. 4, ll. 13-16 (emphasis in original). ANGELL, REB 29 Idaho Power Company 25 26 1 2 3 4 5 6 1 R 9 10 11 t2 13 74 15 76 71 18 19 20 27 )) 23 24 25 26 21 2B 29 30 31 32 that 1s providing a service generation to the utility. Once the exported power passes the DG customer's meter, the utility takes title to the exported power.It is the utility that delivers the exported DG power to the DG customer's neighbors. It is the utilitythat is compensated by the neighbors for the service that the utility provides in deliverj-ng the DG exports to them. Thus,it is the utility and the neighboring customer that use the distribution systemto deliver the DG exports. The DG customer is in no way responsible for the delivery of their exported power, has no control- over who receives their exports,and receives no compensatlon for the delivery of the exports.zl 0. Do you agree wj-th Mr. Beach that it is the utility that is utilizing the grid when a solar customer exports power to the utility? A. Mr. Beach is correct in the DG customer has no responsibility for the grid or the delivery of energy through the grid. However, the DG customer rel-ies on the grid voltage for the inverter to produce alternating current for the export of energy and the grid's ability to receive and distribute this energy to other loads while maintaining a balance between energy and load. Further, my statement of "uses the grid in a bi-directional manner"zz pertains simply to the ability to receive power from the grld and supply power to the grid at any time, collectively 21 Beach DI, p. 2A, 11. 15-24 (emphasis in originat) (footnote omitted) 22 AngeII DI, p. 10, fI. 22-23. ANGELL, REB Idaho Power 30 Company 1 Z 3 4 5 6 1 B 9 10 11 L2 13 l4 15 76 71 1B 19 20 2L 22 23 24 25 26 referred to as "exchange. " The R&SGS customers with on- site generation exchange more energy with the grid than a R&SGS standard service customer. O. Did the Company perform analysis to assess when R&SGS customers wlth on-site generation exchange more energy with the grid? A. Yes. The Company analyzed the hourly exchange for al-l 565 net metering customers who had 12 months of billing data during 2016 and compared that to the exchange of the residentlal customers without on-site generation. The Company analyzed aII 72 months of 20L6 and has shared the resul-ts for a winter month, a spring month (al-so representative of fall), and a summer month in Figures 17, 72, and 13 respectively. For the three graphs, each hour data point is the average of the absol-ute value for that hour throughout the month. The abso1ute value of each hour captures the amount of the energy exchange, regardl-ess of whi-ch direction the energy is flowing. A comparison of Figures l!, 12, and 13 with Figures 3, 4, and 5, respectively, reveal the export of energy during the daylight hours when net metering customers are exporting to the grid. The net metering customers on average are consistently exchanging more energy with the grid every hour of each month. This energy exchange, when combined with their l-ower foad factor, results in less efficient use of grid capacity. ANGELL, REB Idaho Power 31 Company 1 Figure 11. ilanuary 2OL6 Average Hourly Energy Exchang'e January Average Energy Exchange Bv 3.s0 3.00 2.50 2.00 1.50 1.00 0.s0 0.00 ilr ilililililil1 L 2 3 4 5 5 7 8 9 101172731415t677 1819202L222324 I Residential r Net Metered 2 3 Fig.nre 12. April 2OL6 Average Hourly Energy Exchange April Average Energy Exchange 3.00 2.s0 2.00 ! r.so ilililililil 1234s6 ilililililil 1.00 0.s0 0.00 7 8 9 1011t2L3t415L6t7 18192021222324 r Residential I Net Metered 4 tr E.igure 13. June 2OL6 Averag'e Hourly Energ'y Exchange June Average Energy Exchange 3.00 2.50 2.OO illlllllililr ! r.so ilililililililr 1.00 0.50 0.00 1 2 3 4 5 6 7 I 9 1011121314L51617 1819202L222324 I Residential I Net Metered 6 ANGELL, REB 32 Idaho Power Company ililil 1 2 3 4 5 6 1 U 9 O. Did Mr. Beach conduct any analyses to support his argument that it is not the customer with on-site generatJ-on that 1s utilizing the grid when generating excess energy? A. No. However, Mr. Beach descrj-bes a study to determine the distribution benefits provided by DG. The study cal-culated a peak capacity allocation factor for L2 substations' 20L6 l-oads and combined this factor with two Boise sol-ar profiles. The study concludes that 0.22 kW and 0.31 kW of marginal distribution capacity costs can be avoided by one kW of south-facing and west-facing solar DG, respectively. z: O. Do you agree with Mr. Beach's conclusions from this analysis? A. No. Mr. Beach's conclusion of marginal distribution capacity costs avoidance from DG solar is inconsistent with the Company provided substation capacity and 2016 load data. I be]ieve this is due to the generalized summation approach used withln the study which discounts the capacity and loading of a single substation. For example, the !2 substations' 20L6 non-coincident peak l-oad hours are only 70 percent of the total installed 10 11 72 13 74 15 76 71 1B 19 20 2t 22 ANGELL, REB 33 Idaho Power Company Z3 23 Beach DI, p. 30, I. 14 - p. 31, 1. 2. 2 3 4 5 6 1 B 9 1 capacity. Based on this, one could conclude that no capacity additions are required. Analysis of the load data of each substation reveafs specifics that are l-ost in the generalized approach of the study. Six of the L2 substations serve predominately irrigation customers who have a consistent 2A-hour load profile during the irrigation season. Two of the substations supply winter peaking 1oads. Based on the Company's and the electric utility industry's experience with solar and battery DG technology, eight of the 12 substation capacity upgrades would not be avoided by solar DG or sofar with battery DG. First sofar DG cannot provide power to supply irrigation load through the night nor supply the wlnter morning peak loads of the winter peaking substations. Additionally, sol-ar combined with batteries is not an economically viable option to supply loads lasting more than four hours based on present and near-term battery technology. Mr. Beach's generalized approach 1ike1y overstates the real-izable capacity avoidance. It shou1d also be noted that the discussion regarding the vafue of DG is beyond the scope of this docket. In Order No. 33946, the Commission denied ICEA's alternate recornmendation to decide the value of DG prior to addressing reclassification of R&SGS 10 11 72 13 74 15 16 77 18 19 )i 2L 23 ANGELL, REB 34 Idaho Power Company 24 1 Z 3 4 q 6 1 I 9 customers with on-sj-te generation. Idaho Power has requested that the Commission open a generic docket at the concl-usi-on of this case where stakeholders and other util-ities can collaborate to assess the benefits and costs that DG brings to O. Were the efectric system. there any other suggestions made by Mr. addre s s ?Beach that you would like to A. Yes. Mr. Beach mischaracterlzed a statement from my direct testimony. Mr. Beach claimed that I asserted: any distribution benefits will be limited to the five-year period in whlch Idaho Power plans distribution upgrades and expansiorts."2q To clarify, the statementI made was "fdaho Power is able to forecast distribution circuit and substation capacity requirements with some certainty five years into the future. This planning horizon period allows the Company to investigate optionsto avoid facility overloads, select more cost-effective options, and design and construct improvements to meet the ldentified overloads.2s 10 11 72 13 !4 15 76 71 1B 19 20 2t 22 23 24 25 26 I did not suggest from customers that distribution benefits 27 2B resulting Iimited to with on-site generation will be benefit determination ANGELL, REB 35 Idaho Power Company 29 is outside a five-year period as such the scope of this docket. 30 2a Beach DI, p. 27 , 2s Angell DI, p. 18, r1.24-25. 4-10.t_1 L aL 3 4 5 6 1 B 9 Pl-ease summarize the impact that customer on- site generation has on the grid. A. Customer on-site generation is not l1ke EE. The grid must be abl-e to absorb excess generation when supplied, supply the customer's 1oad, and replace the excess generation when call-ed upon, aII whil-e minimiztnq distribution circuit voltage variability to maintain customer power qual-ity. III. MODIFICATIONS TO SCHEDT'LE 72 10 1. Smart Inverter Requirenent 11 0. Do parties support the Company's proposal to L2 require al-l new net metering customers to use smart l-3 inverters within 60 days folfowing the adoption of an L4 industry standard definition of smart inverters as deflned 15 by the IEEE? A.fn general, yes. Mr. Otto of ICL recommends 71 the Commisslon approve Idaho Power's request to requr-re standard18 smart inverters according to industry 79 definitions.26 20 Do any parties oppose the Company's proposal 76 27 )) O. to requj-re inverters al-l- new net meteri-ng customers to use smart within 60 days foflowing the adoptj-on of an ANGELL, REB Idaho Power 36 Company 26 Otto DI, p. 10, 11. 14-15. Z3 1 industry standard definltion of smart inverters as defined 2 by the IEEE? 3 A. Yes. Staff witness Dr. Morrison opposes the 4 Company's proposed smart inverter requirement. 5 Q. Why does Dr. Morrison oppose the smart 6 inverter requirement for all- new net metering customers? 7 A. Dr. Morrison states that, "the Company is 8 requesting that Commission adopt IEEE L547 and IEEE 7547.L 9 before these standards have been released"zr and the Company 10 "didn't provide any hard information about either of the 11 proposed smart meter Iinverter] standards."28 72 O. Will the Commission and Staff have the 13 opportunity to review the fEEE 7547 and IEEE 7541.7 L4 standards before approving them? 15 A. Yes. The Company's request regarding the inverter requirement was that the Commlsslon order the Company to submit a compllance filing in the form of a tariff advice wlthin 60 days of the adoption of the revj-sed IEEE standards, or 60 days of the concl-usion of this case, whichever occurs later. Thls tariff advice will- seek to I6 L1 1B t9 20 2L modify its interconnection tariff to require that customers smart inverter that meets22with on-site generation install the requirements deflned in the a revlsed IEEE standards. 27 Morrison Df, p 28 Morrison DI, p 16- 18 . 1_a ANGELL, REB 31 Idaho Power Company 23 20, 2l , 11. 11. 1 2 3 4 q, 6 1 B 9 10 11 72 13 l4 15 76 77 1B l9 20 2L 22 23 24 The Commission and Staff woul-d have the opportunity to review the standard in the tariff advice filing. 0. Should the current lack of a defined standard by IEEE prevent the Commission from adopting the Company's inverter proposal? A. No. The current Iack of a defined standard by IEEE should not prevent the Commission from acknowledging that smart inverters provide functionalj-ty that is necessary to support the ongoing stability and reliability of the distribution system and that the industry adoption of a smart inverter requirement will help mitlgate circuit voltage deviation. 2. Other Minor Revisions to Schedule 72 O. The Company has requested to modify Schedule 12 as part of this case. Do any parties object to the proposed changes to Schedul-e 12? A. Yes. Staff witness Dr. Morrison states that the Company's proposed modificatj-ons to Schedule 72 are not minor and would constitute a major revision to the tariff. He goes on to suggest that "the Company's proposed modifications to Schedul-e 12 go far beyond the scope of its application . ."2e O. Do you agree with Dr. Morrison's suggestion that the proposed revisions are major? 2e Morrison DI, p. 21, 11. 20-22 ANGELL, REB Idaho Power 3B Company 1 2 3 4 trJ 6 1 x 9 A No. The proposed revisions to Schedule 12 are in fact very minor. Most of the revislons to Schedule 72 are to incorporate the defined terms interconnectlon requirements between necessary Schedule to sync the 10 proposed revi s ion Schedules 6 and B were removed, there is only one 11 under Section 2, step 5. A11 other revisions are 12 due to the addition of proposed schedules 6 and B. None of 13 the proposed revisions affect any other energy providers 14 who are subject to Schedul-e 12. 15 IV. CONCLUSION 76 Pl-ease summarize your rebuttal testimony. L1 In response to the direct testimony of other : explained in detail the additlonal18 witnesses, I have L9 12 and the newly proposed Schedules 6 and 8 and to make one minor revision to all-ow the Company additional time to complete the on-site inspection of a newly instal-led on-site generation system when circumstances beyond the Company's control- arise (e.9., large snowfal-I) . If the addltlon of analyses performed by the Company. The Company provided additionaf analyses 1n the following areas: o Customers with on-site generatj-on are partial requirements customers and therefore their load service requirements are different than full requirements customers . n A 20 27 22 23 24 25 ANGELL, REB Idaho Power 39 Company 1 2 3 4 5 6 1 9 o The l-oad profile of customers with on-site generation is distinct from the foad profile of customers without on-site generation. . . The rate of chanqe in usage by customers with on- site generation during the day is significantly larger than customers without on-sj-te generation. o Customers with on-site generation have notably l-ower load factors than customers without on-site generation. o The system-coincident and NCDs for customers with on-site generation are different than customers without on-site qenerati-on. In summary, the results of additional analyses performed by the Company demonstrate that the foad factor, the load profile, the SCDs and the NCDs for R&SGS customers with on-site generation are distinctly different than R&SGS customers without on-site generation. The Company has clearly demonstrated that the load service requirements, and the pattern of use, are distinctfy different for residential customers with on-site generation as compared to residential customers without on-site generation. I have explained that the two-way flow of energy is distinct to customers with on-site generation and have al-so explained the l-imited scope of revisions to and the process 10 11 72 13 74 15 L6 t1 1B 79 20 27 )) )') 24 ANGELL, REB Idaho Power 40 Company 25 1 2 3 4 5 6 1 B 9 of approving the proposed revisions to Schedule 12 and smart inverter requirement. O. What is your recommendation for the Commission? A. I recommend that the Commission issue an order to establ-ish two new classiflcations of customers applicable to R&SGS customers with on-sj-te generatlon, to approve the proposed revisions to Schedule f2, and to acknowledge that smart inverters provide functionality that is necessary to support the ongoing reliability of the distribution system by ordering the Company to amend its applicable tariff schedules to require the instalfation and operation of smart i-nverters for all new customer-owned 10 11 72 13 74 15 76 71 1B 79 20 2L 23 24 25 of generator adoption inverters O A lnterconnections within 60 days following the deflnition of smart your testimony? AS an industry standard defined by the IEEE. Does this conclude Yes, it does. ANGELL, REB 47 Idaho Power Company 26 1 2 3 4 5 6 't I 9 ATTESTATION OF TESTIMONY STATE OF IDAHO SS. County of Ada I, David M. Angell, having been duly sworn to testify truthfully, and based upon my personal knowledge, state the following: I am employed by Idaho Power Company as the Senior Construction and amManager of T&D Engineering and 10 competent I to be a witness in this proceeding. perjury of the l-aws of11declare under penalty of 12 the state of Idaho that the foregoing rebuttal of my information testimony is and bel-ief .13 true and correct to the best 74 DATED this 26th day of January, 2018. 15 ( 76 l1 David M. AngelI 1B SUBSCRIBED AND SWORN to before me this 26th day of 79 January, 2078. 20 2t 22 23 24 No ary c for Idaho Residing a Bo My commission e 25 26 21 ANGELL, REB Idaho Power 42 Company goTAiy Purulc-a(, t(. ,,rgOF 28 ) ) ) r]a g .'r'l'' l \l ,.$ ,l: !:l s1 I CERTIFICATE OF SERVICE ! HEREBY CERTIFY that on the 26th day of January 2018 I served a true and correct copy of REBUTTAL TESTIMONY OF DAVID M. ANGELL upon the following named parties by the method indicated below, and addressed to the following: Gommission Staff Sean Costello Deputy Attorney General !daho Public Utilities Commission 472 West Washington (83702) P.O. Box 83720 Boise, ldaho 83720-007 4 ldahydro C. Tom Arkoosh ARKOOSH IAW OFFICES 802 West Bannock Street, Suite 900 P.O. Box 2900 Boise, ldaho 83701 ldaho Gonseruation League Matthew A. Nykiel ldaho Conservation League 102 South Euclid #207 P.O. Box 2308 Sandpoint, ldaho 83864 Benjamin J. Otto ldaho Conservation League 710 North 6th Street Boise, ldaho 83702 ldaho lrrigation Pumpers Association, lnc. Eric L. Olsen ECHO HAWK & OLSEN, PLLC 505 Pershing Avenue, Suite 100 P.O. Box 6119 Pocatello, Idaho 83205 _Hand Delivered _U.S. Mail _Overnight Mail_FAXX Email sean.costello@puc.idaho.gov _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email tom.arkoosh@arkoosh.comeJt@ _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email mnvkiel@idahoconservation.orq _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email botto@idahoconservation.orq _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email elo@echohawk.com Anthony Yankel 12700 Lake Avenue, Unit 2505 Lakewood, Ohio 44107 _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email tony@vankel.net Auric Solar, LLC Preston N. Carter Deborah E. Nelson GIVENS PURSLEY LLP 601 West Bannock Street Boise, ldaho 83702 Elias Bishop Auric Solar, LLC 2310 South 1300 West West Valley City, Utah 84119 Vote Solar David Bender Earthjustice 3916 Nakoma Road Madison, Wisconsin 537 11 Briana Kobor Vote Solar 986 Princeton Avenue S Salt Lake City, Utah 84105 City of Boise Abigail R. Germaine Deputy City Attorney Boise City Attorney's Office 150 North Capitol Boulevard P.O. Box 500 Boise, ldaho 83701-0500 ldaho Clean Energy Association Preston N. Carter Deborah E. Nelson GIVENS PURSLEY LLP 601 West Bannock Street Boise, ldaho 83702 Sierra Club Kelsey Jae Nunez KELSEY JAE NUNEZLLC 920 North Clover Drive Boise, ldaho 83703 _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email prestoncarter@qivenspurslev.com den@givenspurslev.com _Hand Delivered _U.S. Mail _Overnight Mail _FAXJ Email elias.bislrop@auricsolar.com _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email dbender@earthjustice.orq _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email briana@votesolar.orq _Hand Delivered _U.S. t\Iail _Overnight Mail _FAXX Email aqermaine@cityofboise.orq _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email prestoncarter@qivenspurslev.com den@q ivenspu rslev. com _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email kelsev@kelseviaenunez.com Tom Beach Crossborder Energy 2560 9th Street, Suite 213A Berkeley,CA 94710 Zack Waterman Director, Idaho Sierra CIub 503 West Franklin Street Boise, ldaho 83702 Michael Heckler 3606 North Prospect Way Garden City, ldaho 83714 Snake River Alliance NW Energy Coalition John R. Hammond, Jr. FISHER PUSCH LLP 101 South Capito! Boulevard, Suite 701 P.O. Box 1308 Boise, ldaho 83701 lntermountain Wind and Solar, LLC Ryan B. Frazier Brian W. Burnett KIRTON McCONKIE 50 East South Temple, Suite 400 P.O. Box 45120 Salt Lake City, Utah 84111 Doug Shipley lntermountain Wind and Solar, LLC 1953 West2425 South Woods Cross, Utah 84087 _Hand Delivered _U.S. Mail _Overnight Mail_FAXX Email tomb@crossborderenerqy.com _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email zack.waterman@sierraclub.orq _Hand Delivered _U.S. Mail _Overnight Mail FAX x Email michael. p. heckler@omail.com _Hand Delivered _U.S. Mai! _Overnight Mail _FAXxEmail irh@fisherpusch.com wwi lso n @s n a ke rive ra I I ia n ce. o rg dieoo@nwenerov.org _Hand Delivered _U.S. Mail _Overnight Mail _FAXX Email rfrazier@kmclaw.com bburnett@kmclaw.com _Hand Delivered _U.S. Mail _Overnight Mail _FAXxEmail douq@imwindandsolar.com () Ki T , Executive istant