20170831Staff 2 to IPC.pdf

CAMILLE CHRISTEN
DEPUTY ATTORNEY GENERAL
IDAHO PUBLIC UTILITIES COMMISSION
PO BOX 83720
BOISE, IDAHO 83720-007 4
[phone]
IDAHO BAR NO. 10177
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Street Address for Express Mail:
472 W, WASHINGTON
BOISE, IDAHO 83702-5918
Attomey for the Commission Staff
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF THE APPLICATION OF
IDAHO POWER COMPANY FOR APPROVAL
OF THE CAPACITY DEFICIENCY TO BE
UTILIZED FOR AVOIDED COST
CALCULATIONS.
CASE NO. IPC.E-I7-I?
SECOND PRODUCTION
REQUEST OF THE
COMMISSION STAFF TO
IDAHO POWER
The Staff of the Idaho Public Utilities Commission, by and through its attorney of record,
Camille Christen, Deputy Attorney General, request that Idaho Power Company (Idaho Power or
Company) provide the following documents and information as soon as possible, by MONDAY,
SEPTEMBER ll, 2017.r
This Production Request is continuing, and Idaho Power is requested to provide, by way
of supplementary responses, additional documents that it or any person acting on its behalf may
later obtain that will augment the documents produced.
Please provide answers to each question and supporting workpapers that provide detail or
are the source of information used in calculations. Idaho Power is reminded that responses
pursuant to Commission Rules of Procedure must include the name and phone number of the
' Staff is requesting an expedited response. If responding by this date will be problematic, please call Staff s
attorney at [phone].
SECOND PRODUCTION REQUEST
TO IDAHO POWER COMPANY AUGUST 3I,2OI7
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person preparing the document, and the name, location and phone number of the record holder
and if different the witness who can sponsor the answer at hearing if need be. IDAPA
31.01.01.228.
In addition to the written copies provided as response to the questions, please provide all
Excel and electronic files on CD with formulas activated.
REQUEST NO. 2: Please provide and explain the major drivers causing the first
capacity deficiency date to move from the currently authorized date of July 2024 to July 2026 as
proposed by the Company. Specifically, but not limited to:
a. Please explain why "Adjustments for EE Potential Study Forecast" in the load
resource balance is reduced from an average l6l MW for July peak months from
2024 through2026 in the 2015 IRP as compared to an average 18 MW inthe2017
IRP.
b. Please explain the drivers causing the difference in Market Purchase
availability/transmission import capacity in the load resource balance between the
2015 IRP and2017 IRP for months Jluly 2024, July 2025, and July 2026. As part of
the explanation, please describe the specific rationale for each driver and/or any
changes in assumptions between the 2015 IRP and the 2017 IRP.
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Dated at Boise, Idaho, this 3 [day ofAugust 2017.
0 'll,Qn r-r*,
Camille Christen
Deputy Attorney General
Technical Staff: Yao Yin
i :umisc:prodreq/ipcelT . I 2ccyy prod req2
SECOND PRODUCTION REQUEST
TO IDAHO POWER COMPANY 2 AUGUST 3I,2OI7
CERTIFICATE OF SERVICE
I HEREBY CERTIFY THAT I HAVE THIS 31ST DAY OF AUGUST 2017,
SERVED THE FOREGOING SECOND PRODUCTION REQUEST OF THE
COMMISSION STAFF TO IDAHO POWER COMPANY, IN CASE NO. IPC-E-17-72,
BY MAILING A COPY THEREOF, POSTAGE PREPAID, TO THE FOLLOWING:
DONOVAN E WALKER
REGULATORY DOCKETS
IDAHO POWER COMPANY
PO BOX 70
BOISE rD 83707-0070
E-mail : [e-mail]
dockets@idahopower. com
MICHAEL DARRINGTON
ENERGY CONTRACTS
IDAHO POWER COMPANY
PO BOX 70
BOISE ID 83707-0070
E-mail: [e-mail]
energycontracts @idahopower. com
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CERTIFICATE OF SERVICE