20230612Cover Letter_Updated Appendix F.pdf

Avista Corp.
1411 East Mission P.O. Box 3727
Spokane, Washington 99220-0500
Telephone [phone]
Toll Free 800-727-9170

June 12, 2023

Jan Noriyuki, Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd. Bldg. 8, Ste. 201-A
Boise, Idaho 83714

RE: Case No. AVU-E-23-05 - Avista’s 2023 Electric Integrated Resource Plan

Dear Ms. Noriyuki:

Avista Corporation d/b/a/ Avista Utilities, filed with the Commission its final 2023 Electric
Integrated Resource Plan (IRP) on June 1, 2023. Supporting documents were filed electronically
and included in the USB drive provided with the hard copy filing. An outdated Excel file labeled,
“Market Modeling Inputs and Results,” provided in Appendix F, was inadvertently filed. Attached
for filing is an updated version to be included in Appendix F of Avista’s original filing.

If you have any questions regarding this filing, please contact James Gall at 509-495-2189 or John
Lyons at 509-495-8515.

Sincerely,
/s/Shawn Bonfield
Shawn Bonfield
Sr. Manager of Regulatory Strategy & Policy
509-434-6502
[e-mail]

RECEIVED
2023 JUNE 12, 2023 1:21PM
IDAHO PUBLIC
UTILITIES COMMISSION