20190603PAC to IIPA WY WIEC Set 1.pdf

1407 W North Temple, Suite 330 Salt Lake City, Utah 84116 May 7, 2019
Abigail C. Briggerman, #7-5476
Holland & Hart LLP 6380 South Fiddlers Green Circle, Suite 500 Greenwood Village, CO 80111 [e-mail]

RE: Wyoming Docket 20000-539-EA-18 WIEC 1st Set Data Request (1-23) Please find enclosed Rocky Mountain Power’s 1st Supplemental Response to WIEC 1st Set Data
Request 1.23. Also provided is Attachment WIEC 1.23 1st Supplemental.
If you have any questions, please call me at [phone]. Sincerely,

_____/s/_________ Stacy Splittstoesser, Manager, Regulation

Enclosure C.c: Christopher Leger/OCA [e-mail] (C) Thor Nelson/WIEC [e-mail] (W) Michelle King/WIEC [e-mail] (W)
Hannah Oakes/WIEC [e-mail] (W)
Adele Lee/WIEC [e-mail] (W) Gina Gargano-Amari/WIEC [e-mail] (W)
20000-539-EA-18 / Rocky Mountain Power
May 7, 2019 WIEC Data Request 1.23 – 1st Supplemental WIEC Data Request 1.23 Please provide all decommissioning studies relied upon for support of any terminal net salvage requested in this case, and provide a schedule showing the calculations of how the estimated decommissioning costs affected the proposed production net salvage rates. First Supplemental Response to WIEC Data Request 1.23 As discussed during the All-States Depreciation meeting on April 18, 2019, the Company agreed to provide the following additional information related to decommissioning cost studies:

Please refer to Attachment WIEC 1.23 1st Supplemental and the link below for the requested information: http://www.berkshirehathawayenergyco.com/ccr/ppw.html

Respondent: Grant Laughter Witness: Chad Teply