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Home My WebLink About20100729PAC to Monsanto 6 (1-16).pdf~ROCKY MOUNTAINPOR A DMSION OF PAACORP RECE -r~~ intnJtlL 29 ,AM 9.: 20 July 28,2010 Radal C. Budge RACINE, OLSON, NYE, BUDGE & BAILEY, CfúTERED P.O. Box 1391; 201 E. Center Pocatello, Idao 83204-1391 RE: ID PAC-E-10-07 Monsanto Data Request Set 6 (1-16) 201 South Main. Suite 2300 Salt Lake City. Utah 84111 Please find enclosed Rocky Mountain Power's responses to Monsanto Data Requests 6.1-6.16. Provided on the enclosed Confdential CD are Confdential Atthments Monsanto 6.6 -(1-2), 6.10,6.12, and 6.14. Confdential Atthments are Confdential and are provided to paries tht have signed a protective order in ths docket. If you have any questions, please feel free to call me at (801) 220-2963. Sincerely, J. Ted l( li L J. Ted Weston Manger, Reguation Enclosure: C.c: James R. Smith Richar Anderson Gerge C. Carer, III Denns Peseau Gath R. Kajander Maurce Brubaker Brian Collins Michal Gorman Ka Iveron Mark Widmer Michal C. Creaer Eric L. Olse Jea Jewell Ben Ot P AC-E-1 0-07/Rocky Mountain Power July 28, 2010 Monsato Data Request 6.1 Monsanto Data Request 6.1 Please provide the most curent Populus to Termal transmission project NPC analyses used to justify the project and a list of all modeling assumptions includig but not limited to wholesales market sizes. In addition, please provide the hourly coal generation and wholesale sales by market with and without the project for the first two years of the studies. Response to Monsanto Data Request 6.1 Please refer to Confdential Attchment Monsato 1.11 -1, page 12, and section "2008 Populus - Ter 345 kV Financial Analysis". "Net power costs savigs were not factored in the fmancial results because the investment was priarly selected to improve system reliabilty and maintan capabilty to fuly utilze the Nortwest Reserve Sharng Pool benefits". The Populus - Termin 345 kV lie financial analyses was based on a rage of project costs compared to cost avoidace of instaling additional simple cycle gas tubines and the impact of reduced Path C capacity. There have been no updated fmancial analyses performed for the project since original analysis prepared in 2008. Recordholder: Sponsor: Darell T. Gerrard Darell T. Gerrd P AC-E-1 0-07/Rocky Mountan Power July 28,2010 Monsanto Data Request 6.2 Monsanto Data Request 6.2 Please provide the NPC analyses used to develop the inormation shown in Confdential Attchment Monsanto 1.11-1, Table 8 and provide a list of all modeling assumptions including but not limited to wholesale market sizes. In addition, please provide the hourly coal generation and wholesale sales by market with and without the project for the fist two years of the studies. Response to Monsanto Data Request 6.2 Net power cost (NC) was not a factor in calculating the Energy Gateway segment results for present value revenue requiements (PVRR) and net present value (NV) as shown in Table 8. The segment results were determined by comparg the capita costs of the recommended 500 kV solution againt the capita costs of two phased 345 kV transmission systems. Recordholder: Sponsor: Cory Scott / Bil Cungham John A. Cupparo P AC-E-1 0-07/Rocky Mountai Power July 28,2010 Monsanto Data Request 6.3 Monsanto Data Request 6.3 Please provide the economic and NPC anlyses, plus the hourly coal generation and wholesale sales without and without the followig tubine upgres: a. Hunter unt 1 high pressure b. Huntington unt 1 HP/IP/LP tubine sections replacements c. Bridger unit 1 HP/i tubine sections replacements Response to Monsanto Data Request 6.3 The items listed are among the capita additions that impacted the capabilty of those unts. In addition, there are capita additions at Huntington unt 1, Jim Bridger unt 1 and Dave Johnton unt 3 for the instalation of scrubbers. All of these capita projects are listed on page 8.6.2 of Exhbit 2. The Company's share of the net impact of these capita additions is: Hunter 1: +15.9MW Huntington 1: + 16.5MW Bridger 1: + 1. 7MW Dave Johnston 3: -4.2MW The Company has not performed the requested NPC analyses. Monsanto may perform the requested studies, as its consultats, Mr. Widmer and Mr. Collin, were provided access to the Company's GRI model on June 17,2010. Recordholder: Sponsor: Hui Shu Hui Shu P AC-E-1 0-07/Rocky Mountan Power July 28,2010 Monsanto Data Request 6.4 Monsanto Data Request 6.4 On pages thee and four of Mr. Gerrard's testiony he states tht instalation of new trsmission capacity wil ensur the system can susta transmission outages nort of the Terminal substation without curling loads, generation or impacting PacifiCorp's East Control Area and neighboring transmission balancing authority areas. Please provide the amount of additiona energy tht would have been generated by the coal plants without the referenced generation curtlments for the four year period used to normalize thermal generation. Response to Monsanto Data Request 6.4 Assumg that the four-year period referenced in the request refers to the four- year period tht that Company uses as the basis for the normalized thermal plant outages in GRID for the curent proceeding, there is no "additional" or "incremental" coal generation, becaus the Compay has not assumed any outages, curents nor de-rates of any transmission path in GRI. In his testimony, Mr. Gerrard states that, in actul operations and given the fact that the path has been utilized, the energy flow on the path between Populus and Term may have to be curled or cut due to outages, curlments and/or de-rates of the tranmission path. Recordholder: Sponsor: Darell T. Gerrard Darell T. Gerrd P AC-E-1 0-07/Rocky Mountain Power July 28,2010 Monsanto Data Request 6.5 Monsanto Data Request 6.5 On pages three and four of Mr. Gerrd's testimony he stated that the intallation of the Populus to Termnal tranmission line will improve the Company's abilty to perform maintenance on transmission facilties between Populus and Termnal by having alternative paths that allow facilties to be taken off-line and maitaed. Please provide the incrementa amount of energy tht would have been generated by the coal plants above the amounts provided in the prior request, if the alternative tranmission path were available durg the four year period used to normalize thermal generation. Response to Monsanto Data Request 6.5 Please refer to the Company's response to Monsanto Data Request 6.4. Recordholder: Sponsor: Darell T. Gerrard Darell T. Gerrard P AC-E-1 0-07/Rocky Mountain Power July 28, 2010 Monsanto Data Request 6.6 Monsanto Data Request 6.6 Please provide a copy of the 2007/2008 Company specifc analyses on several distubance events that severely impacted generation referenced on page nine of Mr. Gerrard's testimony and all correspondence, papers and documents regarding the conclusion of the studies. Response to Monsanto Data Request 6.6 Please refer to Confidential Attchments 6.6 -1 and 6.6 -2. Ths information is confdential and is provided subject to the terms and conditions of the protective agreement in ths proceeding. Rerdholder: Sponsor: Darell T. Gerrard Darell T. Gerrard P AC-E-1 0-07/Rocky Mounta Power July 28, 2010 Monsanto Data Request 6.7 Monsanto Data Request 6.7 On page 17 of Mr. Cupparo's testimony he states tht by providig additional tranmission capacity though this tranmission segment the Company has more flexibilty in locating reserves on PacifiCorp owned generation and makg ful use of the Northwest Reserve Sharng Program, which allows the Company to cover reserves requiements without having to build additional generation. a. Please explain the pricing methodology for reserves purchased through the Nortwest Reserve Shang Program. b. Please identify the amount and cost of additional reserves the Company expects to have access to by year though the completion of the Energy Gateway trmission project. Response to Monsanto Data Request 6.7 a. Nortwest Reserve Sharng Program trsactions are settled at the Dow Jones Mid-Columbia Index for On-Peak and Off-Peak Fir Energy. b. To utilize the Nortwest Power Pool(NP) reserve sharg program, unused capacity must be available as an import path from another NWPP member should the pooled reserves be necessa. If capacity is not available the pool canot be usd and a balancing authority's obligation increases to its largest contingency as opposed to 5%/7% of generation. Without the Energy Gateway upgrade, daily de-rates would occur, severely limiting the capacity available beeen PacifiCorp and Idao, our NWPP neighbor. De-rates of Path C effectively elimate the NWP benefit and require PacifiCorp to car reserves equa to its largest contigency, Lakesia.e (525 MW) at all times. Benefits of the reserve pool var by hour, as 7% of the PacifiCorp generation in the east control ara is always smaller th 525 MW. Recrdholder: Sponsor: Kenneth Houson John A. Cupparo P AC-E-l 0-07/Rocky Mountan Power July 28, 2010 Monsanto Data Request 6.8 Monsanto Data Request 6.8 Item 18 on page 7 of Exhbit No. 36 states that "Accordig to PacifiCorp, this advanced conductor design will increase transmission capacity and reduce the sag of transmission lines as well as avoid energy losses. Please provide the yearly expected. incrementa changes in energy loss factors compared to the loss factors modeled in GRID though the completion of the Energy Gateway trmission project. Response to Monsanto Data Request 6.8 Yearly expected incrementa changes in energy loss factors were not prepared for the Energy Gateway transmission project. Recordholder: Sponsor: Darell T. Gerrard Darell T. Gerrard P AC-E-l 0-07/Rocky Mounta Power July 28,2010 Monsanto Data Request 6.9 Monsanto Data Request 6.9 Has the Company reflected the expected reduction in energy losses discussed in the previous request in the Company's filing? If yes, please identify where they were included. Response to Monsanto Data Request 6.9 No, the Company ha not reflected the expected reduction in energy losses previously discussed. Line loss stues rely on actu data a study captug the positive impacts of the new conductor would have to be conducted using 2011 actu data. Notwthstading a reduction in average system losses, PacifiCorp customers will receive benefits from the lower loss conductors though actu reductions in the costs to serve load reflected though lower net power costs trcked in the energy cost adjustment mechasm. Recordholder: Sponsor: Kenneth Houston Darell T. Gerrard PAC-E-I0-07/Rocky Mounta Power July 28,2010 Monsanto Data Request 6.10 Monsanto Data Request 6.10 Please provide actu wheeling expense detal for the period 2006 though 2009 and 2010 to date by month in the sae level of detail as Confdential Atthment Monsanto 2.10-10. Response to Monsanto Data Request 6.10 Please refer to Confdential Attchment Monsato 6.10. Confdential inormation is provided subject to the terms and conditions of the protective agreement in ths proceedig. Recordholder: Sponsor: Hui Shu Hui Shu PAC.E-I0-07/Rocky Mounta Power July 28,2010 Monsanto Data Request 6.11 Monsanto Data Request 6.11 Please identify all jursdictions where the Company ha either agreed to or has modeled STF transmission based on a four year average of trmission capabilty and expense. Response to Monsanto Data Request 6.11 The Company assumes tht the request refers to the GRID model that the Company uses in rate case proceedigs in all its jursdictions. Basd on that assumption, the Company has either agreed to or has modeled the capacity of STF transmission based on four-year average historical tranmission capabilty in its most recent rate proceedings in all six jursdictions tht it operates in. STF transmission expense has been modeled using one year historic data. Recordholder: Sponsor: Hui Shu Hui Shu PAC-E-10-07/Rocky Mountain Power July 28, 2010 Monsanto Data Request 6.12 Monsanto Data Request 6.12 Please provide Mona and Gonder STF sales for the period 2006 though 2009 in the same format as Confdential Attchment WIC 1.42 from Wyomig Docket No.20000-353-ER-09. Response to Monsanto Data Request 6.12 Please refer to Confdential Atthment Monsanto 6.12 for the requested information. Ths inormtion is confdential and is provided subject to the terms and conditions of the protective agreement in ths proceeding. Recordholder: Sponsor: Hui Shu Hui Shu PAC-E-I0-07/Rocky Mountan Power July 28, 2010 Monsanto Data Request 6.13 Monsanto Data Request 6.13 Please provide actu STF tranmission data for the first six months of 201 0 in the same format as Confdential Attchment Monsanto 2.7. Response to Monsanto Data Request 6.13 The requested information is prepared on a semianua basis and is not yet available for the fist six month of2010. Ths inormation will be available in September and will be provided as soon as it is available. Recordholder: Sponsor: Hui Shu Hui Shu P AC-E-l 0-07/Rocky Mountan Power July 28, 2010 Monsanto Data Request 6.14 Monsanto Data Request 6.14 Regarding the wid capacity factors shown in Confdential Attchment Monsanto 2.12-3, please provide the following inormation. a. The calculation of the wind capacity factors and supportg workpapers. Response to Monsanto Data Request 6.14 Please refer to Confdential Attchment Monsanto 6.14. Confdential inormation is provided subject to the terms and conditions of the protective agreement in ths proceeding. Recordholder: Sponsor: Hui Shu Hui Shu P AC-E-l 0-07/Rocky Mounta Power July 28,2010 Monsanto Data Request 6.15 Monsanto Data Request 6.15 Pleae identify the hours classified as weekend in the EFOR calculation. Response to Monsanto Data Request 6.15 EFOR calculations in some cases have been separated out into weekday and weekend periods. The weekend period has been defied as. all Satuday and Sunday hours (48 tota hours). Recordholder: Sponsor: Dean Haron To Be Determined P AC-E-l 0-07/Rocky Mountan Power July 28,2010 Monsanto Data Request 6.16 Monsanto Data Request 6.16 Please provide the Company's estimate of percentages for each category listed in Monsanto 3.37. Response to Monsanto Data Request 6.16 There is no offcial Company estimate of these percentages. System conditions var.extremely from season to season and even day today, and the volumetric result will be likewise volatile. Recordholder: Sponsor: Grg Maxfield Hui Shu