20230616Workpapers for Amended 2023 IRP.pdf

1407 W. North Temple, Suite 330 
Salt Lake City, UT 84116

June 16, 2023

VIA ELECTRONIC FILING

Jan Noriyuki
Commission Secretary
Idaho Public Utilities Commission
11331 W Chinden Blvd
Building 8 Suite 201A
Boise, Idaho 83714

RE: CASE NO. PAC-E-23-10 - PACIFICORP’S APPLICATION FOR
ACKNOWLEDGEMENT OF THE 2023 INTEGRATED RESOURCE PLAN

Dear Ms. Noriyuki:

On May 31, 2023, PacifiCorp d/b/a Pacific Power (“PacifiCorp” or “Company”) filed its amended
final 2023 Integrated Resource Plan (“2023 IRP”) in the above-referenced docket. PacifiCorp is
now supplementing its May 31, 2023 filing with both the non-confidential and confidential
workpapers for the amended final 2023 IRP.

The 2023 IRP (Amended Final) and public workpapers are available electronically on PacifiCorp’s
(“Company”) website, at www.pacificorp.com/irp.

Confidential information in the workpapers will be available to state regulators and any party who
has intervened in this case and signed a non-disclosure agreement. PacifiCorp requests that
interested parties contact the state manager listed below for a copy of the non-disclosure agreement
that must be executed and submitted prior to obtaining a copy of the confidential information.

Confidential workpapers include model input and results, and support for tables and figures
organized by chapter and appendix. This includes materials for all studies, variants and sensitivities
included in the May 31, 2023 filing.

Informal inquiries, including requests to receive a copy of the 2023 IRP filing or non-disclosure
agreement, may be directed to Mark Alder, Idaho Regulatory Affairs Manager, at [phone].

Sincerely,

Joelle Steward
Senior Vice President of Regulation and Customer/Community Solutions

Enclosures
RECEIVED
Friday, June 16, 2023 11:31:36 AM
IDAHO PUBLIC
UTILITIES COMMISSION
Idaho Public Utilities Commission
June 16, 2023
Page 2

cc: Ed Schriever, Idaho Governor’s Office (without enclosures)
Brad Heusinkveld, Idaho Conservation League (without enclosures)
Teri Carlock, Idaho Public Utilities Commission staff (without enclosures)
Thomas J. Budge, (Bayer) (without enclosures)
Nancy Kelly, Western Resource Advocates (without enclosures)