20240220Letter of Agreement.pdf

Avista Corp.
1411 East Mission P.O. Box 3727
Spokane. Washington 99220-0500
Telephone [phone]
Toll Free 800-727-9170
February 20, 2024
Commission Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd. Bldg. 8, Ste. 201-A
Boise, Idaho 83714
RE: Case No. AVU-E-22-02 Capacity Deficiency Period for the Avoided Cost Calculations
Dear Commission Secretary:
Avista Corporation dba Avista Utilities (Avista or the Company) received Staff’s letter filed on
February 14, 2024 pertaining to Order No. 36056 in Case No. AVU-E-23-12 which establishes a
new first capacity deficit date which occurs in 2033. Staff’s letter and corresponding attachments
provide an update to the Surrogate Avoided Resource (“SAR”) Model and re-calculated avoided
cost rates to reflect the new capacity deficit information. Avista has reviewed the attachments and
would like to thank Staff for their update to the SAR model and agrees with Staff’s calculations.
Please direct any questions regarding these comments to John Lyons at 509-495-8515.
Sincerely,
/s/Shawn Bonfield
Shawn Bonfield
Sr. Manager of Regulatory Policy & Strategy
Avista Utilities
509-495-2782
[e-mail]
RECEIVED
Tuesday, February 20, 2024 11:53AM
IDAHO PUBLIC
UTILITIES COMMISSION