20210721PAC to Staff 1-3.pdf

1407 W North Temple, Suite 330 Salt Lake City, Utah 84116
July 21, 2021 Jan Noriyuki Idaho Public Utilities Commission 472 W. Washington
Boise, ID 83702-5918 [e-mail] (C) RE: ID PAC-E-21-14
IPUC Set 1 (1-3) Please find enclosed Rocky Mountain Power’s Responses to IPUC 1st Set Data Requests 1-3. If you have any questions, please feel free to call me at [phone].
Sincerely, ____/s/____ J. Ted Weston Manager, Regulation Enclosures

RECEIVED
2021July 21, AM 10:14
IDAHO PUBLIC
UTILITIES COMMISSION
PAC-E-21-14 / Rocky Mountain Power July 21, 2021 IPUC Data Request 1
IPUC Data Request 1 The proposed Power Purchase Agreement lists the Facility's nameplate capacity rating at 2.95 megawatts (MW), while the nameplate capacity rating in the 1985
contract lists the Facility's nameplate capacity rating at 2.70 MW. Please explain
the difference between these two amounts. In the response, please indicate if the Facility's nameplate capacity rating has been 2.95 MW since initial construction and whether the Facility has ever been upgraded.
Response to IPUC Data Request 1 Please refer to the proposed power purchase agreement (PPA) provided with the Company’s application, specifically Exhibit B (Description of Seller’s Facility). The facility nameplate capacity was confirmed from the included licensed
engineer one-line diagram. The facility owner has indicated to the Company that
there has been no modification to the generator since the original install and explained the 2.7 megawatts (MW) in the original PPA dated May 21, 1985 was an estimate of potential output at build. Please refer to “Facility Nameplate
Capacity Rating” which states 2,950 kilowatts (2.95 MW), and to the licensed
engineer one-line diagram. Recordholder: Irene Heng
Sponsor: To Be Determined

PAC-E-21-14 / Rocky Mountain Power July 21, 2021 IPUC Data Request 2
IPUC Data Request 2 Please provide the actual generation amounts in average annual MW for each year over the 1985 contract’s term.
Response to IPUC Data Request 2 Please refer to the table below which provides the calculated average annual
megawatts (MW), based on actual generation, for each year from 1997 through
2020 for the original 1985 power purchase agreement (PPA) with Mink Creek Hydro, LLC. Data prior to 1997 is not readily available.
Recordholder: Irene Heng
Sponsor: To Be Determined
Year Average MW
1997 1.43
1998 1.39
1999 1.29
2000 0.89
2001 0.67
2002 0.76
2003 0.81
2004 0.91
2005 1.21
2006 1.27
2007 0.96
2008 1.06
2009 1.20
2010 0.92
2011 1.27
2012 1.01
2013 0.68
2014 0.89
2015 0.98
2016 1.06
2017 1.57
2018 1.06
2019 1.17
2020 1.10
PAC-E-21-14 / Rocky Mountain Power July 21, 2021 IPUC Data Request 3
IPUC Data Request 3 What is the peak capacity contribution of this Facility that the Company has assumed in the Integrated Resource Plan? How is the contribution determined?
Response to IPUC Data Request 3 In PacifiCorp’s 2019 Integrated Resource Plan (IRP), the peak capacity
contribution for the Mink Creek power purchase agreement (PPA) was 1.02
megawatts (MW). The contribution was determined from the resource’s generation, in megawatt-hours (MWh), for the year and divided by the hours in the year to calculate the average MW (aMW).
Recordholder: Dan Swan
Sponsor: To Be Determined