20220803Avista Letter of Agreement.pdf

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Avista Corp.
1411 East Mission P.O.Box3727
Spokane. Washington 99220-0500
Telephone [phone]
Toll Free 800-727-9170
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August 3,2022
JanNoriyuki, Secretary
Idaho Public Utilities Commission
11331 W. ChindenBlvd. Bldg.8, Ste.20l-A
Boise,Idaho 83714
RE: Case No. AW-E-22-02 Capacity Deficiency Period for the Avoided Cost Calculations
Dear Ms. Noriyuki:
Avista Corporation dba Avista Utilities (Avista or the Company) received Staffs letter filed on
August2,2022pertainingtoOrderNo.35466inCaseNo. AYU-E-22-02whichestablishesanew
first capacity deficit date which occurs in December 2026. Staffs 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 inforrration. Avista has reviewed
the attachments and would like to thank Stafffor their update to the SAR model and agrees with
Staffs calculations.
Please direct any questions regarding these comments to John Lyons at 509-495-8515.
Sincerely,
lolstarrn 8a'4dd
Shawn Bonfield
Sr. Manager of Regulatory Policy & Strategy
Avista Utilities
509-495-2t82
shawn.bonfi eld@ avistacorp. com
Enclosure