20241030Final Approved Tariff Schedule 66.pdf

RECEIVED
2024 October 1 PM 3:47
IDAHO PUBLIC
SSION
�t
Avista Corp.
1411 East Mission P.O. Box 3727
Spokane. Washington 99220-0500
Telephone [phone]
Toll Free 800-727-9170
Via Electronic Mail
October 1, 2024
Commission Secretary
State of Idaho
Idaho Public Utilities Commission
11331 W. Chinden Blvd. Building 8, Suite 201-A
Boise, Idaho 83702-5983
RE: Tariff I.P.U.C. No. 28 (Electric) Case No. AVU-E-24-07
Compliance Tariff Filing
Commission Order No. 36339 - Case No. AVU-E-24-07
Enclosed for electronic filing with the Commission is the compliance tariff per the
Commission's Order No. 36339 in Case Nos. AVU-E-24-07.
Electric
Twenty-Sixth Revision Sheet 66 canceling Twenty-Fifth Revision Sheet 66
These tariff sheets have an effective date of October 1, 2024, in compliance with the Order.
Also enclosed is a copy of the workpapers supporting the rate changes within the tariffs. If you
have any questions regarding this filing,please call Joe Miller at(509) 495-4546.
Sincerely,
/s/Patrick Ehrbar
Patrick Ehrbar
Director of Rates
Enclosures

DAHO PUBLIC UTILITIES COMMISSION
Twenty-Sixth Revision Sheet 66 Approved Effective
Canceling Oct. 30, 2024 Oct. 1, 2024
I.P.U.C. No.28 Twenty-Fifth Revision Sheet 66 Per ON 36376
AVISTA CORPORATION Monica Barrios-Sanchez Secretary
d/b/a Avista Utilities
SCHEDULE 66
TEMPORARY POWER COST ADJUSTMENT - IDAHO
APPLICABLE:
To Customers in the State of Idaho where the Company has electric service
available. This Power Cost Adjustment shall be applicable to all retail customers for
charges for electric energy sold. This Rate Adjustment is designed to recover or
rebate a portion of the difference between actual and allowed net power supply costs.
MONTHLY RATE:
The energy charges of electric Schedules 1, 11, 12, 21, 22, 25, 25P, 31, 32, and
41-49 are to be decreased by 0.2460 per kilowatt-hour in all blocks of these rate
schedules.
SPECIAL TERMS AND CONDITIONS:
The rates set forth under this Schedule are subject to periodic review and
adjustment by the IPUC based on the actual balance of deferred power costs.
Service under this schedule is subject to the Rules and Regulations contained
in this tariff.
The above Rate is subject to increases as set forth in Tax Adjustment
Schedule 58.
Issued October 1, 2024 Effective October 1, 2024
Issued by Avista Utilities
B(y� Patrick Ehrbar— Director of Regulatory Affairs

Twenty-Fifth Revision Sheet 66
Canceling
I.P.U.C. No.28 Twenty-Fourth Revision Sheet 66
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 66
TEMPORARY POWER COST ADJUSTMENT - IDAHO
APPLICABLE:
To Customers in the State of Idaho where the Company has electric service
available. This Power Cost Adjustment shall be applicable to all retail customers for
charges for electric energy sold. This Rate Adjustment is designed to recover or
rebate a portion of the difference between actual and allowed net power supply costs.
MONTHLY RATE:
The energy charges of electric Schedules 1, 11, 12, 21, 22, 25, 25P, 31, 32, and
41-49 are to be it Teed by 0.4990 per kilowatt-hour in all blocks of these rate
schedules.
SPECIAL TERMS AND CONDITIONS:
The rates set forth under this Schedule are subject to periodic review and
adjustment by the IPUC based on the actual balance of deferred power costs.
Service under this schedule is subject to the Rules and Regulations contained
in this tariff.
The above Rate is subject to increases as set forth in Tax Adjustment
Schedule 58.
Issued July 31, 2023 Effective October 1, 2023
Issued by Avista Utilities
B(y� Patrick Ehrbar— Director of Regulatory Affairs

Twenty-Sixth Revision Sheet 66
Canceling
I.P.U.C. No.28 Twenty-Fifth Revision Sheet 66
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 66
TEMPORARY POWER COST ADJUSTMENT - IDAHO
APPLICABLE:
To Customers in the State of Idaho where the Company has electric service
available. This Power Cost Adjustment shall be applicable to all retail customers for
charges for electric energy sold. This Rate Adjustment is designed to recover or
rebate a portion of the difference between actual and allowed net power supply costs.
MONTHLY RATE:
The energy charges of electric Schedules 1, 11, 12, 21, 22, 25, 25P, 31, 32, and
41-49 are to be decreased by 0.2460 per kilowatt-hour in all blocks of these rate
schedules.
SPECIAL TERMS AND CONDITIONS:
The rates set forth under this Schedule are subject to periodic review and
adjustment by the IPUC based on the actual balance of deferred power costs.
Service under this schedule is subject to the Rules and Regulations contained
in this tariff.
The above Rate is subject to increases as set forth in Tax Adjustment
Schedule 58.
Issued October 1, 2024 Effective October 1, 2024
Issued by Avista Utilities
B(y� Patrick Ehrbar— Director of Regulatory Affairs