20210630Staff 1-5 to IPC.pdf

DAYN HARDIE
DEPUTY ATTORNEY GENERAL
IDAHO PUBLIC UTILITIES COMMISSION
PO BOX 83720
BOISE, IDAHO 83720-0074
(208) 334-03t2
IDAHO BAR NO. 9917
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Street Address for Express Mail:
I 1331 W CHINDEN BLVD, BLDG 8, SUITE 2OI-A
BOISE, ID 83714
Attomey for the Commission Staff
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF IDAHO POWER
COMPANY'S APPLICATION FOR
AUTHORITY TO INCREASE ITS RATES DUE
TO REVISED DEPRECIATION RATES FOR
ELECTRIC PLANT-IN-SERVICE
CASE NO. IPC.E.21.I8
FIRST PRODUCTION
REQUEST OF THE
COMMISSION STAFF
TO IDAHO POWER COMPANY
The Staff of the Idaho Public Utilities Commission, by and through its attorney of record,
Dayn Hardie, Deputy Attorney General, requests that Idaho Power Company provide the
following documents and information as soon as possible, but no later than WEDNESDAY,
JULY 21,2021.
This Production Request is to be considered as continuing, and Idaho Power Company 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 or information
produced.
Please provide answers to each question, supporting workpapers that provide detail or are
the source of information used in calculations, and the name, job title, and telephone number of
FIRST PRODUCTION REQUEST
TO IDAHO POWER
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I JUNE 3O,2O2I
the person preparing the documents. Please also identiff the name, job title, location, and
telephone number of the record holder.
In addition to the written copies provided as response to the requests, please provide all
Excel spreadsheets and electronic files on CD with formulas intact and enabled.
REQUEST NO. l: Please provide a comparison of the following current and proposed
value by account in Excel format:
a. Probable Retirement Date
b. Survivor Curve
c. Net Salvage Percent
d. Accrual Amount
e. Accrual rate
f. Composite Remaining Life
REQUEST NO. 2: In the accounts listed below, the Company is proposing differing net
salvage percentages between plants, but in the depreciation study the data is not separated
between plants. Please provide documentation supporting those differing net salvage
percentages.
a. 331 - Structures and Improvements
b. 332.1- Reservoirs, Dams and Waterways - Relocation
c. 332.2 - Reservoirs, Dams and Waterways
d. 333 - Waterwheels, Turbines and Generators
e. 334 - Accessory Electric Equipment
f. 335 - Misc. Powerplant Equipment
g. 336 - Roads, Railroads, and Bridges
h. 341- Structures and Improvements
i. 342- Fuel Holders
j. 343 - Prime Movers
k. 344 - Generators
l. 345 - Accessory Electric Equipment
FIRST PRODUCTION REQUEST
TO IDAHO POWER 2 JUNE 3O,2O2I
REQUEST NO. 3: Please explain the differences in the assets used and any other
documentation supporting the net salvage percentages in Account Nos. 355 - Poles and Fixtures
and364 - Poles, Towers and Fixtures.
REQUEST NO.4: Please provide all documentation supporting the derivation and
calculation of the amounts contained in Attachment No l.
REQUEST NO. 5: Please provide descriptions of events and other factors explaining
the variation in cost of removal and salvage values for the following accounts:
a. 332.20 Reservoirs, Dams and Waterways
b. 333.00 Water Wheels, Turbines and Generators:
c. 353.00 Station Equipment / Transmission
d. 355.00 Poles and Fixtures
e. 362.00 Station Equipment / Distribution
DATED at Boise, Idaho, this3%y ofJune 2021
Deputy Attorney General
i:umisc:prodreq/ipce2l. l8dhjt prod req I
FIRST PRODUCTION REQUEST
TO IDAHO POWER aJ JUNE 3O,2O2I
CERTIFICATE OF SERVICE
I HEREBY CERTIFY THAT I HAVE THIS 3OM DAY OF JUNE 2021, SERVED
THE FOREGOING FIRST PRODUCTION REQUEST OF THE COMN{ISSION STAFF
TO IDAHO POWER COMPAI{Y, IN CASE NO. IpC-E-2t-18, By E-MAILING A
COPY THEREOF, TO THE FOLLOWING:
LISA NORDSTROM
IDAHO POWER COMPANY
PO BOX 70
BOISE rD 83707-0070
E-MAIL : [e-mail]
[e-mail]
MATT LARKIN
IDAHO POWER COMPANY
PO BOX 70
BOISE ID 83707-0070
E-MAIL : [e-mail]
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CERTIFICATE OF SERVICE