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Home My WebLink About20180329PAC to Staff WY RMSC Set 4 (1-9).pdfROCKY MOUNTAINPOWER A DIVlSION OF PAC1RCORP 1407 W North Temple,Suite 330 Salt Lake City,Utah 84116 March 15,2018 Brandon L.Jensen BUDD-FALEN LAW OFFICES,LLC 300 East 18th Suœt Post Office Box 346 Cheyenne,Wyoming 82003-0346 brandon@buddfaln.com (C) RE:Wyoming Docket 20000-520-EA-17 Rocky Mountain Sheep Company 4th Set Data Request (1-9) Please find enclosed Rocky Mountain Power's Responses to RMSC 4th Set Data Requests 4.1- 4.9.Also provided are Attachments RMSC 4.8 and 4.9. Sincerely, Stacy Splittstoesser, Manager,Regulation Enclosures C.C.:Meridith Bell/WPSC meridith.bell@wyo.gov(C) Lori L.Brand/WPSC lori.brand@wyo.gov (W) John Burbridge/WPSC john.brubride@wyo.cov(W) Michelle Bohanan/WPSC Michelle.bohanan@wyo.gov (W) Kara Seveland/WPSC kara.seveland@wyo.gov(W) Morgan Fish/WPSC morgan.fish@wyo.gov (W) Dave Walker/WPSC dave.walker@wyo.gv (W) Perry McCollom/WPSC perry.mccollom@wyo.cov(W) Abigail C.Briggerman/WIEC acbriggerman@hollandhart.com Patti Penn/WIEC PPenn@hollanhart.com(W) Thor Nelson/WIEC tnelson@hollandhart.com(C)(W) Emanuel Cocian/WIEC etcocian@hollanhart.com(W) Nik Stoffel/WIEC NSStoffel@hollandhart.com (W) Adele Lee/WIEC ACLee@hollandhart.com (W) Christopher Leger/OCA christopher.leger@wyo.gov (C) Crystal J.McDonough/NLRAcrystal@mcdonoughlawllc.com (C) Callie Capraro/NLRA callie@medonoughlawlle.com Lisa Tormoen Hickey/Interwestlisahickey@newlawgroup.com (C) Roxane Perruso/TOTCO Roxane.perruso@tac-denver.com Jane M.France/TOTCO jfrance@spkm.org (C) Constance E.Brooks/Anadarko connie@cebrooks.com (C) Danielle Bettencourt/Anadarko danielle@cebrooks.com(C)(W) Paul Kapp/Anadarko pkapo@spkm.ore (C) Lisa Christian/TOTCO Lisa.Christian@tac-denver.com (C) J.Kenneth Barbe/Southland kbarbe@wsmtlaw.com (C) 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.1 RMSC Data Request 4.1 Assuming Rocky Mountain Power is granted a Certificate of Public Convenience and Necessity from the WyomingPublic Service Commission,how will Rocky Mountain Power utilize 1,311 MWs of new wind energy if previouslyexisting resources meet consumers'demand for power (i.e.,what if there is no additional demand that requires any or all the 1,311 MW s of new wind energy)? Response to RMSC Data Request 4.1 Please refer to the Company's response to OCA Data Request 1.56. Respondent:Randy Baker Witness:Rick Link 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.2 RMSC Data Request 4.2 Please admit that wind output is inversely correlated with electricitydemand. Response to RMSC Data Request 4.2 PacifiCorp does not make this admission.Correlation between wind and demand is dependent upon the specific wind resource,specific load,and specific time periods. Respondent:Randy Baker Witness:Rick Link 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.3 RMSC Data Request 4.3 Assuming Rocky Mountain Power is granted a Certificate of Public Convenience and Necessity from the WyomingPublic Service Commission,has Rocky Mountaili Power evaluated how often it will curtail any of the 1,311 MWs of new wind energy. Response to RMSC Data Request 4.3 The addition of the Combined Projects will supply sufñcient transfer capability to reduce system curtailments.Please refer to the Company's response to OCA Data Request 1.56. Respondent:Randy Baker Witness:Rick Link 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.4 RMSC Data Request 4.4 How often does PacifiCorp or Rocky Mountain Power curtail or reduce output from existing wind facilities owned by PacifiCorp or Rocky Mountain Power (2017 IRP,page 78,Table 5.5)? Response to RMSC Data Request 4.4 PacifiCorp curtails or reduces output from existing owned or contracted wind facilities as instructed by the security constrained economic dispatch model or the applicable transmission operator/reliability coordinator when system conditions dictate. Respondent:Tom Burns Witness:To Be Determined 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.5 RMSC Data Request 4.5 How often does PacifiCorp or Rocky Mountain Power curtail or reduce output from non- owned wind facilities (2017 IRP,page 78,Table 5.6)? Response to RMSC Data Request 4.5 PacifiCorp curtails or reduces output from non-owned or non-contacted wind facilities as instructed by the applicable transmission operator/reliability coordinator when system conditions dictate. Respondent:Tom Burns Witness:To Be Determined 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.6 RMSC Data Request 4.6 Assuming Rocky Mountain Power is granted a Certificate of Public Convenienceand Necessity from the WyomingPublic Service Commission,what measures will be taken by Rocky Mountain Power to reduce or minimize curtailment of power from wind energy facilities in Wyoming? Response to RMSC Data Request 4.6 PacifiCorp utilizes a five-minute security constrained economic dispatch model in conjunction with real-time automated dispatch control of wind facilities to efficiently minimize curtailment of facilities to be only what is necessary to satisfy system constraints. Respondent:Tom Burns Witness:To Be Determined 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.7 RMSC Data Request 4.7 When Rocky Mountain Power decommissions its coal-fired powered plants in Wyoming, will Rocky Mountain Power provide dispatchable energy from a natural gas plant located in Wyoming? Response to RMSC Data Request 4.7 PacifiCorp develops its integrated resource plan (IRP)every two years and provides an update one year after the plan is filed with state regulatory commissions.Every resource plan includes a preferred portfolio,which represents the least-cost,least-risk plan at the time the plan was completed.While the preferred portfolio from the 2017 IRP includes natural gas plants in Wyomingin 2033,the type,timing,and location of future resources will be reviewed many times in future IRP cycles. Generally,when a resource is included in the preferred portfolio within the first two years to four years of the 20-year planning period,PacifiCorp will include an action item in its IRP action plan describing how it intends to procure that resource,which,depending upon the size and type of the resource identified,is often done through a competitive solicitation process.The results of that competitive solicitation process,not the IRP,will determine the specific resource to be acquired.Consequently,at this time,it is not known the type,the size,or the location of any future resources that might be added to the system as coal plants are decommissioned in Wyoming. Respondent:Rick Link Witness:Rick Link 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.8 RMSC Data Request 4.8 Please provide a copy of the map used in response to Anadarko 1.2 for all property owned by Rocky Mountain Sheep Company.Page 6 of 26 in response to Anadarko 1.2 includes property owned by Rocky Mountain Sheep Company,but no map was provided for property owned immediately to the east. Response to RMSC Data Request 4.8 Please refer to Attachment RMSC 4.8. Respondent:Rod Fisher Witness:Chad Teply 20000-520-EA-17 /Rocky Mountain Power March 15,2018 RMSC Data Request 4.9 RMSC Data Request 4.9 Please provide a copy of any map depicting above-ground facilities within 1,000 feet of the proposed transmission line,such as water wells and transmission lines,on any property owned by Rocky Mountain Sheep Company. Response to RMSC Data Request 4.9 Please refer to Attachment RMSC 4.9. Respondent:Todd Jensen /Stuart Smith Witness:Rick Vail