20171129UM 1897 CUB Data Requests 10 to Hydro One.pdf

October 16, 2017

Re: UM 1897 – Avista and Hydro One Merger – CUB Data Request # 11 to Hydro One

Enclosed please find the Oregon Citizens’ Utility Board’s (“CUB”) Data Request #11 to Hydro One
in the above-referenced docket. Hydro One has fourteen days to respond to these data requests.
Please post responses to Huddle no later than October 30, 2017. Please note that CUB’s data
requests are continuous in nature and require the Company to update any previous data responses as
new information becomes available during the pendency of the case. In the event any of the
responses to the requests below include spreadsheets, please format the spreadsheets in electronic
form with cell formulae intact. Please do not hesitate to contact CUB with any questions.

11. See Appendix 8, commitment 20. “Compliance with Existing Commission Orders: Olympus
Holding Corp. and its subsidiaries, including Avista, acknowledge that all existing orders
issued by the Commission with respect to Avista or its predecessor, Washington Water
Power Co., will remain in effect, and are not modified or otherwise affected by the Proposed
Transaction.” Please explain whether Hydro One has considered the potential impact of the
North American Free Trade Agreement on Avista and the Oregon Public Utility
Commission’s jurisdiction post-merger and provide all documents related to subject.

Liz Jones, OSB #170349
Staff Attorney
Oregon Citizens’ Utility Board
610 SW Broadway, Ste. 400
Portland, OR 97205
T. 503.227.1984 x 11
F. 503.224.2596
E. [e-mail]

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