20191017Staff 1-9 to PAC.pdf

DAYN HARDIE
DEPUTY ATTORNEY GENERAL
IDAHO PUBLIC UTILITIES COMMISSION
PO BOX 83720
BOISE, IDAHO 83720.0074
[phone]
IDAHO BAR NO. 9917
RECEIVED
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Street Address for Express Mail:
I133I W. CHINDEN BLVD., STE. 2OI-A
BOISE,IDAHO 83714
Attorneys for the Commission Staff
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF THE APPLICATION OF
ROCKY MOUNTAIN POWER FOR
AUTHORITY TO REVISE ELECTRIC SERVICE
REGULATION NO. 6 - COMPANY'S
INSTALLATION
CASE NO. PAC.E.I9.I2
FIRST PRODUCTION
REQUEST OF THE
COMMISSION STAFF
TO ROCKY MOUNTAIN
POWER
The Staff of the Idaho Public Utilities Commission, by and through its attomey of record,
Dayn Hardie, Deputy Attorney General, requests that Rocky Mountain Power provide the
following documents and information as soon as possible, but no later than THURSDAY,
NOVEMBER 7, 2019.
This Production Request is to be considered as continuing, and Rocky Mountain 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 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 ROCKY MOTINTAIN POWER
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1 ocToBER t7,2019
the person preparing the documents. Please identify 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. 1: Which classes of service are expected to benefit from the new
option? Will the cost of the option be recovered only from those who receive it, or will costs be
shared by a larger group of customers or class of customers? How will the cost of this option be
allocated to customers in future cost allocation studies? Please provide justification, as
applicable.
REQUEST NO. 2: Is the Company planning to propose a separate charge to customers
requesting a single-phase,2401480 volts, 3-wire, grounded secondary service? Please explain.
REQUEST NO.3: Would the change also be implemented through the line extension
policy? If so, please describe the specific changes that will need to occur in the Company's line
extension policy and tariff.
REQUEST NO. 4: Please identify and provide the plant and expense accounts (in the
uniform system of accounts) that are affected by the proposed option for customers to receive
single-phas e, 2401 480 volts, 3-wire, grounded secondary service.
REQUEST NO. 5: Please provide the expected cost for a typical installation of a single-
phase, 2401480 volts, 3-wire, grounded secondary service. Please breakdown the costs to
directly reflect the transformer, other installation material, and labor costs.
REQUEST NO. 6: Please provide the difference in cost of a single-phase, 2401480
volts, 3-wire, grounded transformer compared to a single-phase, 1201240 volts, 3-wire, grounded
transformer on a per MVA basis.
FIRST PRODUCTION REQUEST
TO ROCKY MOUNTAIN POWER 2 ocroBER 17,2019
REQUEST NO. 7: Please provide current inventory levels of the following, with a unit
cost for each type:
a. Single-phase, 1201240 volts, 3-wire, grounded transformer; and
b. Single-phase, 240 I 480 volts, 3 -wire, grounded transformer.
REQUEST NO. 8: How many single-phase,24}l48} volts, 3-wire, grounded
transformers are expected to be added in inventory?
REQUEST NO. 9: How many new services in Idaho are expected to take advantage of
the single-phase, 240 I 480 volts, 3 -wire, grounded secondary supply?
Y:FDATED at Boise, Idaho, this day of October 2019
Dayn Hardie
Deputy Attorney General
i:umisc:prodreq/pacel9. l2dhrk prod req I
FTRST PRODUCTION REQUEST
TO ROCKY MOUNTAIN POWER J ocToBER 17,2019
CERTIFICATE OF SERVICE
I HEREBY CERTIFY THAT I HAVE THIS 17th DAY OF OCTOBER 2019,
SERVED THE FOREGOING FIRST PRODUCTION REQUEST OF THE COMMISSION
STAFF TO ROCKY MOUNTAIN POWER, N CASE NO. PAC-E-19-12, BY MAILING
A COPY THEREOF, POSTAGE PREPAID, TO THE FOLLOWING:
TED WESTON
ROCKY MOUNTAIN POWER
I4O7 WN TEMPLE STE 330
SALT LAKE CITY UT 84116
E-MAIL: [e-mail]
DATA REQUEST RESPONSE CENTER
E-MAIL ONLY:
datareq ue st@pac i f-rc orp. com
DANIEL E SOLANDER
SENIOR COUNSEL
ROCKY MOI-INTAIN POWER
I4O7 WN TEMPLE STE 320
SALT LAKE CITY UT 84116
E-MAIL: [e-mail]
YS
CERTIFICATE OF SERVICE