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Home My WebLink About20180410PAC to Staff UT UAE Set 5 (1-29).pdf1407 W.North Temple ROCKY MOUNTAIN Salt Lake City,UT 84116 POWER A D1VISiCN OFPACIFICORP March 30,2018 Gary A.Dodge Phillip Russell HATCH,JAMES &DODGE 10 West Broadway,Suite 400 Salt Lake City,Utah 84101 gdodge@hidlaw.com (C) prussell@hidla_w.co_m (C) Kevin Higgins Neal Townsend ENERGY STRATEGIES 215 S.State Street,#200 Salt Lake City,UT 84111 khiggins@energvstrat.com(C) ntownsend@energystrat.com(C)(W) RE:UT Docket No.17-035-40 UAE 5th Set Data Request (1-29) Please find enclosed Rocky Mountain Power's Responses to UAE 5th Set Data Requests 5.10, 5.11,and 5.14.Provided on the enclosed Confidential CD is Confidential Attachment UAE 5.14 lst Supplementaland Confidential Response to UAE 5.10 16'Supplemental.Confidential information is provided subject to Public Service Commission of Utah (UPSC)Rule 746-1-602 and 746-1-603. If you have any questions,please call me at (801)220-2823. Sincerely, Jana Saba Manager,Regulation Enclosures C.c.Erika Tedder/DPU dpudatarequest@utah.govetedder@utah.gov(C) Dan Kohler/DPU dkoehler@daymarkea.com(C) Dan Peac/DPU dpeaco@daymarkea.com (C)(W) Aliea Afnan/DPU aafnan@daymarkea.com(W) Philip Hayet/OCS phayet@ikenn.com (C) Béla Vastag/OCS bvastag@utah.gov(C) Sophie Hays/UCE sophie@utahcleanenergy.ore(C) Kate Bowman/UCE kate@utaheleanenergy.ore(C)(W) Emma Rieves/UCE emma@utaheleanenergy.org(C)(W) Lisa Tormoen Hickey/Interwestlisahickey@newlawaroup.com (C) Mitch Longson/Interwest mloneson@mc2b.com (C) Nancy Kelly/WRAnkelly@westernresources.org(C) Jennifer Gardner/WRA iennifer.gardner@westernresources.org(C) Penny Anderson/WRA penny.anderson@westernresources.org (W) Peter J.Mattheis/Nucor pjm@smxblaw.com (C) Eric J.Lacey/Nucor eil@smxblaw.com (C)(W) William J.Evans/UIEC bevans@parsonsbehle.com Vicki M.Baldwin/UIEC vbaldwin@parsonsbehle.com(W) Chad C.Baker/UIEC cbaker@parsonsbehle.com (W) 17-035-40 /Rocky Mountain Power March 30,2018 UAE Data Request 5.10 -1st Supplemental UAE Data Request 5.10 Is PacifiCorp required to submit independently balanced EIM Base Schedules for PACE and PACW balancing area pursuant to the CAISO's EIM tariff or PacifiCorp Transmission's EIM tariff?If yes,please provide a citation to the tariff corresponding to the requirement.If no,please explain how the EIM base schedules are determined for the respective balancing areas. 16*SupplementalConfidential Response to UAE Data Request 5.10 Further to the Company's response to UAE Data Request 5.10 dated March 15,2018, PacifiCorp continues to object to this request as not reasonably calculated to lead to the discovery of relevant or admissible evidence.Without waiving this objection,PacifiCorp now responds as follows: PacifiCorp submits a balanced schedule for both of its balancing authority areas (BAA) separately,but these schedules consider the resource positions in both the PacifiCorp East (PACE)and PacifiCorp West (PACW)BAAs.For example,PacifiCorp will schedule the which is in the PACW BAA,into the PACE BAA to facilitate energy transfers for economic or reliability purposes.Similarly,PacifiCorp will schedule energy or reserves to the PACW BAA from resources in the PACE BAA if it is economic or for reliability reasons.The final balanced schedules that are submitted for the PACE and PACW BAAs are "independently"balanced,but they use resources across both BAAs. Confidential information is provided subject to Public Service Commission of Utah (UPSC)Rule 746-1-602 and 746-1-603. 17-035-40 /Rocky Mountain Power March 30,2018 UAE Data Request 5.11 -16*Supplemental UAE Data Request 5.11 Does the EIM provide PacifiCorp with the ability to schedule firm energy between balancing areas in an amount exceeding the firm transmission rights that PacifiCorp possesses between the two balancing areas?If yes,please explain,with references to specific tariff provision,how transfers of such firm energy transfers may be accomplished. 1"*SupplementalResponse to UAE Data Request 5.11 Further to the Company's response to UAE Data Request 5.11 dated March 15,2018, PacifiCorp continues to object to this request as not reasonably calculated to lead to the discovery of relevant or admissible evidence.Without waiving this objection,PacifiCorp now responds as follows: No. Note:the Company clarifies that the economic analysis in this docket does not assume that additional 300 megawatts (MW)of transmission capability that will be available when Idaho Power Company (IPC)joins the energy imbalance market (EIM)is "firm" transmission,nor does PacifiCorp assert that it can "use the EIM to achieve new,firm transmission rights on another EIM participants'system[.]". 17-035-40 /Rocky Mountain Power March 30,2018 UAE Data Request 5.14 -1"*Supplemental UAE Data Request 5.14 Please provide uninstructed imbalance charges for the followingwind facilities on a monthlybasis (or the greatest level of granularityavailable)over the period January 1, 2015 through June 30,2017: (a)Glenrock (b)Glenrock III (c)Foote Creek (d)McFadden Ridge (e)Seven Mile Wind (f)Seven Mile II Wind (g)Top of the World Wind (h)Dunlap Wind (i)High Plains Wind (j)Mountain Wind I (k)Mountain Wind II (1)Rock River I (m)RollingHills Wind 16 SupplementalResponse to UAE Data Request 5.14 Further to the Company's response to UAE Data Request 5.14 dated March 15,2018, PacifiCorp continues to object to this request as not reasonably calculated to lead to the discovery of relevant or admissible evidence.Without waiving this objection,PacifiCorp now responds as follows: Please refer to Confidential Attachment UAE 5.14 161 Supplemental,which provides the requested information for subparts (d)and (h)above. Confidential information is provided subject to Public Service Commission of Utah (UPSC)Rule 746-1-602 and 746-1-603.