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Home My WebLink About20120313PAC to Monsanto 3,7,8,13,15,19-23,25.pdf~ROCKY MOUNTAIN POWERA DMSJON OF PAP RECEIVED 20 I South Main. Suite 2300 Salt Lake City, Utah 84111 2U12 MAR 13 AM 9: r.r. March 12,2012 Radal C. Budge, ISB No. 1949 P.O. Box 1391; 201 E. Center Pocatello, Idaho 83204-1391 rcb(iracinelaw.net (C) RE: il PAC-E-12-03 Monsanto 1 st Set Data Request (1-30) Please find enclosed Rocky Mounta Power's responses to Monsanto 1st Set Data Requests 3, 7, 8, 13, 15, 19-23, and 25. Provided on the enclosed Confdential CD ar Confdential Attchments 3, 13, 15, 19 -(1-2),20,21,22, and 23. Confdential inormation is provided subject to the terms and conditions of the protective agrement in ths proceedig. If you have any questions, please feel free to call me at (801) 220-2963. Sincerely, .j ~T d tu~ I fw J. Ted Weston Manger, Regulation Enclosur C.c.: Jean JewelllUC (4 CDs) jean.jewellwuc.daho.gov (C) Neil PricelIPUC neiLprice(iuc.idaho.gov (C) Maurce Brubaker/Monsanto mbrubaker(iconsultbai.com Katie Iverson/onsanto kiverson(iconsultbai.com (C) James R. Smithonsanto jim.r.smith(ßonsanto.com Mark Widmer/Monsanto nwec(ionlinenw.com (C) PAC-E-! 1-12/Rocky Mounta Power March 12, 2012 Monsanto Data Request 3 Monsanto Data Request 3 Please provide a copy af all interal reports tht discuss major operational problems with any component of the Company's generation fleet durg the ECAM test year. Response to Monsanto Data Request 3 Pleae refer to Confdential Attchment Monsanto 3. Confdential inormation is provided subject to the terms and conditions of the protective agreement in this procding. Recordholder: Sponsor: Dean Haron Greg Duvall PAC-E-1 1 - 12/Rocky Mountan Power March 12, 2012 Monsanto Data Request 7 Monsanto Data Request 7 Please provide a compason of all budgeted thermal planed outaes and actual planed outages in MWH by plant for the ECAM test period, including a detaled explantion of why individua plant budgets were exceeded for outages tht exceeded budgets by 5,000 MWH or more. Response to Monsanto Data Request 7 Budgeted Planed Outage MWh vs. Actu Planed Outage MWh For the ECAM Test Year (December 2010 - November 2011) Budgeted Actus tht exceed Planed Outage Actu Planed budget by more th Plant MWh OUUleMWh 5,000MW Blundell 5,280 4,116 Carbon 9,648 0 Chehais 46,580 0 Cholla4 0 0 Colstrip 905,760 1,407,566 501,806 Cra12 451,968 645,039 193,071 Curt Crek 46,824 9,136 Dave Johnon 0 ° Gasby 44,457 11,392 Hayden 308,374 538,353 229,979 Hermston 135,840 213,894 78,054 Hunter 619,200 582,399 Huntington 378,450 452,648 74,198 Jim Bridger 852,096 802,332 Lake Side 437,432 346,497 Little Mtn.2,016 1,925 Nau12ton 410,010 399,742 Wyodak 337,680 402,592 64,912 Colstrp 3 Unit: In mid-March, 2011, the Colstrp owners extended the scheduled duration of the 201 1 outage on U3 in response to a recommendation from the generator OEM. The generator OEM had reviewed the results of the most recent generator stator inspection and determned that more work would need to be performed on ths stator than was originally planed. Dung the outge, extensive problems were found in the generator stator, generator main lead bushigs, and generator blower shroud. These issues delayed completion of ths outage. PAC-E-1 1 -12/Rocky Mountan Power March 12, 2012 Monsto Data Request 7 Crag 1 Unit: Retu to service was delayed as a result of repai related to a misaigned superheater, intermediate header, and late completion of the boiler chemica cleang. Seal rubs in the new steam tubine also delayed the unt's retu. Hayden 2 Unit: Retu to servce was intially extended due to emergent work which wa discovered on the unit's coolin tower. The unt al experenced a mechancal failure of the rotatin exciter. That failur occured durng the attempted initial sta-up followig the overhaul. Hermston 1 Unit: The duration of ths outage was extended in order to inta an upgre to the plant's distrbuted control system and to tae advantage of low power prices. Hermston 2 Unit: The durtion of ths outage was extended from the 2010 plan in order to perform a rebuild of the #2 bearg that is not normally included in a hot gas path work scope and to insta a new combustion tubine generator main step-up transformer. Huntington 2 Unit: Delays were due to late completion of varous boiler components by the boiler contractor. Wyodak 1 Unit: The boiler contrtor experienced weld quaity issues durng the replacement of the superheater outlet header extending retu to servce 4- days from April 11,2011 until April 15,2012. A boiler chemical clea was scheduled to be done at the end of the overhaul, but was postponed until June to allow iron transfer from the new ai cooled condenser to normalize, thus insurng a cleaner boiler and better heat transfer. In addition, it was known that the Unit would be requied to come off for WECC testin. Recrdholder: Sponsor: Dean Haron Greg Duvall PAC-E-1 1-12/Rocky Mounta Power March 12, 2012 Monsanto Data Request 8 Monsanto Data Request 8 Please list any Company thermal plant NERC outages for a paricular NERC outae code tht exceeded the indust average for like kid plants for the BeAM test year. If the Company exceeded the industr average for a parcular NERC code, pleae provide the total MWH exceeded. Response to Monsanto Data Request 8 The Company does not have this anysis for all of the NERC oute codes as compared to the industr averages. As shown in the table below, total PacifiCorp MWh losses per unt year ar about 8% less th the industr averages. Unplanned Outages Boiler Tube Failure NERC Codes for the ECAM Test Year (December 2010 - November 2011) (Coal NERC Avera2es PacifiCorp Avera2es Units)No. of MWLost No. of MW Exceeded Siz NERC Occurrences per Unit- Occurrences Lost per MWhper Cateeoiv Code Der Unit-Yr.Yr.Der Unit-Yr.Unit-Yr.Unit-Yr. 400599 1000 1.280 39,270.98 1.909 35,434.74 400599 1003 0.013 337.60 400-599 1005 0.027 278.23 400-599 1010 0.060 2,909.19 400-599 1020 0.033 1,256.36 400-599 1030 0.020 397.66 400-599 1035 0.113 4,612.14 400-599 1040 0.393 11,207.19 1.091 33,004.38 21,797.19 40-599 1050 0.307 9,647.92 0.909 27,314.02 17,666.10 400-599 1055 0.013 679.13 40-599 1060 0.587 20,747.07 400599 1070 0.133 4,699.96 0.091 1,868.33 40599 1075 0.007 797.16 400599 1080 0.227 9,831.26 0.273 5,187.27 400-599 1090 0.200 6,340.64 0.091 899.39 40599 Total 3.413 113,012.49 4.364 103,708.13 Note: The NERC average data is anua data for caendar year 2010, since the most recent year of published inormation ends with calenda year 2010. Recordholder: Sponsor: Dean Haron Greg Duvall PAC-E- i 1-12/Rocky Mounta Power Marh 12, 2012 Monsanto Data Request 13 Monsanto Data Request 13 Please provide a sumar of employee issues experienced by the Company on outaes that occured durg the ECAM test year, including the name of the unt and the amount of generation lost due to employee issues. Response to Monsanto Data Request 13 Please refer to Confdential Attchment Monsanto 13. Confdential inormation is provided subject to the terms and conditions of the protecve agreement in ths proceeding. Recordholder: Sponsor: Dean Haron Greg Duvall PAC-E-11-12/Rocky Mountain Power March 12, 2012 Monsanto Data Request 15 Monsanto Data Request 15 Please provide the hourly contingency reserves (spin and ready) cared on each resource durg the ECAM test year. Response to Monsanto Data Request 15 Please refer to Confdential Attchment Monsanto 15. Confidential information is provided subject to the terms and conditions of the protective agreement in ths proceeding. Recordholder: Sponsor: Greg Maxfield Greg Duvall PAC-E-11-12/Rocky Mounta Power March 12,2012 Monsato Data Request 19 Monsanto Data Request 19 Please provide workpapers and source documents which support the Dave Johnton coal expense adjustments for December and November. Response to Monsanto Data Request 19 Pleae refer to Confdential Attchments Monsto 19 -1 and 19 -2. Confdential inormation is provided subject to the ters and conditions of the protective agreement in ths proceedng. Recordholder: Sponsor: Brian Durg Brian Durg PAC-E-11-12/Rocky Mounta Power March 12,2012 Monsanto . Data Request 20 Monsanto Data Request 20 Please provide workppers and source documents which support the Colstrp coal expense adjustment for Febru. Response to Monsanto Data Request 20 Please refer to Confdential Attchment Monsanto 20 and Confdential Attchment Monsanto 19. Confdenti information is provided subject to the ters and conditions of the protective ageement in ths proceeding. Recordho1der: Sponsor: Brian Durg Brian Durng PAC-E-1 1 -12/Rocky Mounta Power March 12,2012 Monsanto Data Request 21 Monsanto Data Request 21 Please provide workpapers and source documents which support the Huntingtn coal expense adjustments for all months except Janua, October and November. Response to Monsanto Data Request 21 Please refer to Confdential Atthment Monsto 21 and Confdential Attchment Monsanto 19. Confdential inormation is provided subject to the terms and conditions of the protective agreement in ths proceedig Recordholder: Sponsor: Brian Durng Brian Durg PAC-E-1 1 -12/Rocky Mounta Power March 12, 2012 Monsanto Data Request 22 Monsanto Data Request 22 Please provide workpapers and soure documents which support the Jim Bridger coal expense adjustments for all month except September, October and November. Response to Monsanto Data Request 22 Please refer to Confdential Atthment Monsato 22 and Confdential Attachment Monsanto 19. Confdential information is provided subject to the terms and conditions of the protective ageement in this proceeding. Recordholder: Sponsor: Brian Durng Brian Durng PAC-E-1 1 -12/Rocky Mounta Power March 12,2012 Monsto Data Request 23 Monsanto Data Request 23 Please provide workpaprs and sour documents which support the Naughton coal expense adjustments for all month except December and August. Response to Monsanto Data Request 23 Please refer to Confdential Atthment Monsanto 23 and Confdential Atthment Monsanto 19. Confdential information is provided subject to the terms and conditions of the protective agreement in ths proceedig. Recordholder: Sponsor: Brian Durg Brian Durg PAC-E-11- 12/Rocky Mounta Power March 12,2012 Monsanto Data Request 25 Monsanto Data Request 25 Please provide a breakdown of the renewable generation shown in Exhbit 1 by month by plant. Response to Monsanto Data Request 25 Please refer to the Company's response to Monsanto 28. The plants included in the renewable resource adder were highighted in yellow on the tab entitled Adjusted Actu NPC. Recordholder: Sponsor: Bradley Mullins Greg Duvall