20230919VS 20-21 to IPC.pdf

VOTE SOLAR’S SECOND SET OF DISCOVERY REQUESTS TO IDAHO POWER COMPANY - 1

Abigail R. Germaine (ISB No. 9231)
Elam & Burke, P.A.
251 E. Front St. Suite 300
P.O. Box 1539
Boise, Idaho 83701
[phone]
[phone] (fax)
[e-mail]

Attorney for Vote Solar

BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION

IN THE MATTER OF IDAHO POWER
COMPANY’S APPLICATION FOR
AUTHORITY TO IMPLEMENT CHANGES
TO THE COMPENSATION STRUCTURE
APPLICABLE TO CUSTOMER ON-SITE
GENERATION UNDER SCHEDULES 6, 8,
AND 84 AND TO ESTABLISH AN EXPORT
CREDIT RATE METHODOLOGY

CASE NO. IPC-E-23-14
VOTE SOLAR’S SECOND SET OF
DISCOVERY REQUESTS TO IDAHO
POWER COMPANY

COMES NOW, Vote Solar, by and through counsel, Elam & Burke, P.A., hereby submits
the attached interrogatories and requests for production of documents to Idaho Power Company
(“Idaho Power”) pursuant to Commission Rule 225. Vote Solar requests that Idaho Power please
respond to these requests no later than October 10, 2023. Please provide answers to each question,
including supporting workpapers that provide pertinent detail or information used in certain
calculations or conclusions. Please also identify the name, title, location, telephone number, and
email of the individual providing such record.
In addition to written copies, please provide all Excel spreadsheets and electronic files with
formulas intact. This discovery request is to be considered as continuing, and Idaho Power is
requested to provide, by way of supplementary responses, additional documents that it may later
obtain that will augment the documents or information produced.

RECEIVED
Tuesday, September 19, 2023 10:06:32 AM
IDAHO PUBLIC
UTILITIES COMMISSION

VOTE SOLAR’S SECOND SET OF DISCOVERY REQUESTS TO IDAHO POWER COMPANY - 2

INTERROGATORIES AND REQUESTS FOR PRODUCTION OF DOCUMENTS
REQUEST NO. 20: Regarding Exhibit 2 – Ellsworth DI Testimony filed May 5, 2023:
(a) Please explain how Idaho Power derived the “Maximum Output” for 2020, 2021,
and 2022 as presented in cells F18, F23, and F28 of the tab “Gen_Capacity.”
(b) Do the values in cells F18, F23, and F28 correspond with the nameplate capacity
of rooftop solar on Idaho Power’s system each year? If not, what do they represent?
(c) Why do the ELCC values presented in cells F19 and F24 differ from the ELCC
values presented in Case No. IPC-E-22-22? (See Case No. IPC-E-22-22 “Appendix 4.12 ELCC &
NREL Results” tab “Options,” which identifies a real-time ELCC of 4.230% in 2020 and 10.918%
in 2021.)
REQUEST NO. 21: Regarding Idaho Power’s customers with rooftop solar:
(a) Please provide the number of customers with solar installations in each year
through 2022, broken out by rate schedule.
(b) Please provide the capacity of customer solar installations in each year through
2022, broken out by rate schedule.
DATED this 19th day of September, 2023.
ELAM & BURKE, P.A.

_______________________________
Abigail R. Germaine
Attorney for Vote Solar

VOTE SOLAR’S SECOND SET OF DISCOVERY REQUESTS TO IDAHO POWER COMPANY - 3

CERTIFICATE OF SERVICE

I HEREBY certify that I have on this 19th day of September, 2023, I served the foregoing
Vote Solar’s Second Set of Discovery Requests to Idaho Power Company by electronic mail to
the following:
Jan Noriyuki
Commission Staff
Idaho Public Utilities Commission
11331 W. Chinden Blvd., Ste. 201-A
Boise, ID 83714
[e-mail]
[e-mail]

Chris Burdin
Deputy Attorney General
Idaho Public Utilities Commission
1131 W. Chinden Blvd., Ste. 201-A
Boise, ID 83714
[e-mail]

Marie Callaway Kellner
Brad Heusinkveld
Idaho Conservation League, Energy
Associate
Attorneys for Idaho Conservation League
710 N. 6th St.
Boise, ID 83702
[e-mail]
[e-mail]

Lisa D. Nordstrom
Megan Goicoechea
Idaho Power Company
PO Box 70
Boise, ID 83707
[e-mail]
[e-mail]
[e-mail]

Eric L. Olsen
Idaho Irrigation Pumpers Association
Echo Hawk & Olsen, PLLC
505 Pershing Ave., Ste. 100
P.O. Box 6119
Pocatello, Idaho 83205
[e-mail]

Jim Swier
Micron Technology, Inc.
8000 South Federal Way
Boise, ID 83707
[e-mail]

Lance Kaufman, Ph. D.
2623 NW Bluebell Place
Corvallis, OR 97330
[e-mail]

Kelsey Jae
Law for Conscious Leadership
Clean Energy Opportunities for Idaho
920 N. Clover Dr.
Boise, ID 83703
[e-mail]

C. Tom Arkoosh
Attorneys for IdaHydro
Arkoosh Law Offices
913 W. River Street, Suite 450
Boise, ID 83701
[e-mail]
[e-mail]

VOTE SOLAR’S SECOND SET OF DISCOVERY REQUESTS TO IDAHO POWER COMPANY - 4

Timothy E. Tatum
Connie Aschenbrenner
Grant Anderson
Idaho Power Company
PO Box 70
Boise, ID 83707
[e-mail]
[e-mail]
[e-mail]

Courtney White
Mike Heckler
Clean Energy Opportunities for Idaho
3778 Plantation River Dr. Suite 102
Boise, ID 83703
[e-mail]
m
[e-mail]
Austin Rueschhoff
Thorvald A. Nelson
Austin W. Jensen
Micron Technology, Inc.
Holland & Hart, LLP
555 17th St. Suite 3200
Denver, CO 80202
[e-mail]
[e-mail]
[e-mail]
[e-mail]
[e-mail]

Darrell Early
Boise City Attorney’s Office
150 N. Capitol Blvd.
Boise, ID 83701
Boise City Attorney
[e-mail]
[e-mail]
Wil Gehl
Boise City Dept. of Public Works
150 N Capitol Blvd.
Boise, ID 83701
[e-mail]

_____________________________________
Abigail R. Germaine