20170829Utah_DPU Set 6 (1-7).docx

PATRICIA E. SCHMID (#4908)
JUSTIN JETTER (#13257)
Assistant Attorney GeneralsCounsel for the DIVISION OF PUBLIC UTILITIESSEAN REYES (#7969)Attorney General of Utah
160 E 300 S, 5th Floor
P.O. Box 140857
Salt Lake City, UT 84114-0857
Telephone [phone]
BEFORE THE PUBLIC SERVICE COMMISSION OF UTAH
In the Matter of Rocky Mountain Power’s Application for Approval of Resource Decision to Repower Wind Facilities
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DOCKET NO. 17-035-39
Division of Public Utilities
6thSet of Data Requests to
ROCKY MOUNTAIN POWER
August 17, 2017
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Please send an electronic copy and a paper copy of your Data Response to:
Erika Tedder – Paralegal
Division of Public Utilities
160 E 300 S, 4th Floor
Salt Lake City, UT 84114
PLEASE E-MAIL YOUR DATA
RESPONSE TO ERIKA TEDDER
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]
Response should include where applicable native WORD and EXCEL documents with intact formulae.
Your Data Response is not consideredreceived until an electronic copy is furnished and received.
O & M Expense.What is the current property tax expense for the WTGs that are proposed to be repowered? What will the estimated incremental property tax be after the WTGs are repowered? Please provide in Excel format with intact formulae.
6.2General. Please provide monthly curtailment datafor the five-year period beginning January 1, 2011 through December 31, 2016 for the Wyodak and Dave Johnston generating plants, respectively.For each curtailment incident, please provide an explanation of the reason foreach respective curtailment at both Wyodak and Dave Johnston during the five-year period. Please provide your response in Excel format with intactformulae where applicable.
6.3O & M Expense. For the same period referenced in DR 6.2, please provide O & M expenses (totals) in Excel format with intact formulae for Wyodak and Dave Johnston, respectively.
General. For the same period referenced in DR 6.2, please provide the contribution capacities for Wyodak, Dave Johnston, Glenrock I, Glenrock III, Rolling Hills, Seven Mile Hill I, Seven Mile Hill II, High Plains, McFadden Ridge, and Dunlap I in Excel format with intact formulae.
O & M Expense. Please provide documentation for the warranty terms and agreements for the repowered WTGs for both GE and Vestas generators. Please provide supporting documentation.
6.6O & M Expense. As part of the Company’s due diligence to repowerthe selected WTGs, please provide theestimated annual O & M expense over the useful life of both GE and Vestas WTGs, including the following respective components of the repowered WTGs once the warranties have expired. Please provide supporting documentation in Excel format with intact formulae similar to OCS DR 1.40.
a) Rotor blade
b) Gearbox
c) Hub
e) Yaw bearing maintenance (including any crane services)
f) Generator
g) Brake
h) Slip ring (including any crane services)
i) General maintenance
j) Balance of system maintenance
Installation Costs. As part of the installation of each repowered WTG at each of the proposed wind repowering sites, will the yaw bearingsand slip rings be replaced?
DPU Requestor:Division(801) 530-6653
Erika Tedder - [phone]
cc:Service List