20240731Media Notice.pdf

Contact: DRAFT
Media: Lena Funston [phone] lena.funston(a-)avistacorp.com
Investors: Stacey Wenz [phone] stacey.wenz(a-)_avistacorp.com
Avista 24/7 Media Access [phone]
Avista Makes Annual Price Adjustment Filings in Idaho
Requests would result in lower electric prices effective Oct. 1, 2024 and lower natural gas prices
Nov. 1, 2024.
SPOKANE, Wash. — July 31, 2024, 4:05 p.m. PDT: Avista (NYSE: AVA) has made annual rate
adjustment filings with the Idaho Public Utilities Commission (IPUC or Commission) that, if approved, are
designed to decrease overall electric revenues by approximately $16.6 million or 5.4% effective Oct. 1,
2024 and decrease overall natural gas revenue by approximately $28.6 million or 24.7% effective Nov. 1,
2024. These annual filings have no impact on Avista's earnings.
Electric Adjustment Filings
Two annual electric adjustments were filed, that if approved, are designed to change overall electric
revenues effective Oct. 1, 2024 as follows:
1. Power Cost Adjustment(PCA): a decrease of approximately$22.8 million or 7.4%
2. Fixed Cost Adjustment (FCA): an increase of approximately$6.2 million or 2.0%
Natural Gas Adjustment Filings
Two annual natural gas adjustments were filed, that if approved, are designed to change overall natural
gas revenues effective Nov. 1, 2024 as follows:
1. Purchased Gas Cost Adjustment (PGA): a decrease of approximately$31.1 million or 26.8%
2. Fixed Cost Adjustment (FCA): an increase of approximately$2.5 million or 2.1%
Customer Bills Resulting from these Filings
If the electric PCA and FCA filings are approved, residential electric customers in Idaho using an average
of 927 kilowatt hours per month would see their monthly bills decrease from$104.18 to$101.46, a decrease
of$2.72 per month, or approximately 2.6%. The proposed electric rate change would be effective Oct. 1,
2024.
The net effect, on an annual revenue basis, for the requested electric rate changes by rate schedule are as
follows:
Residential Service - Schedule 1 -2.7%
General Service - Schedules 11 & 12 -7.2%
Large General Service - Schedules 21 &22 -6.3%
Extra Large General Service - Schedule 25 -10.7%
Extra Large General Service - Schedule 25P -11.7%
Pumping Service - Schedules 31 & 32 -5.5%
Street&Area Lights - Schedules 41-49 -1.8%
Overall -5.4%
If the natural gas PGA and FCA filings are approved, residential natural gas customers in Idaho using an
average of 64 therms per month would see their monthly bills decrease from $78.03 to $60.15, a decrease

of$17.88 per month, or approximately 22.9%. The proposed natural gas rate change would be effective
Nov. 1, 2024.
The net effect, on a revenue basis, for the requested natural gas rate change by rate schedule are as
follows:
General Service - Schedule 101 -23.2%
Large General Service - Schedules 111 & 112 -30.3%
Interruptible Service - Schedules 131 & 132 0.0%
Transportation Service - Schedule 146 0.0%
Overall -24.7%
Power Cost Adjustment (PCA)
The PCA is an annual rate adjustment made to reflect the difference between the actual cost of generating
and purchasing electric power to serve customers and the cost currently included in customer rates. Over
the last year, power supply costs were lower than those included in retail rates due to lower wholesale
electric and natural gas prices.
Fixed Cost Adjustment (FCA)
The electric and natural gas FCA is a mechanism designed to break the link between a utility's revenues
and customers' energy usage. Avista's actual revenue, based on kilowatt hour or therm sales, will vary, up
or down, from the level included in a general rate case and approved by the Commission. This could be
caused by changes in weather, energy conservation or other factors. Under the FCA, Avista's revenues
are adjusted each month based on the number of customers. The annual difference between revenues
based on sales and the number of customers is surcharged or rebated to customers beginning in the
following year. The proposed FCA rate adjustments are primarily driven by variations in customer usage
related to weather and savings from participating in efficiency programs. The FCA mechanisms do not
apply to Avista's Electric Extra Large General and Street Lighting Service Schedules, nor to its Natural Gas
Interruptible and Transportation Service Schedules.
Purchased Gas Cost Adjustment(PGA)
PGA requests are typically filed annually to balance the actual cost of wholesale natural gas purchased by
Avista to serve customers with the amount presently included in customer's rates. Avista does not make a
profit on, or markup, the wholesale cost of natural gas. PGAs ensure customers pay what Avista pays,
dollar for dollar, only at a more predictable and stable rate throughout the year. These rate adjustments are
driven primarily by a reduction in the current surcharge amortization rate and lower wholesale natural gas
prices observed during this past winter, which were below the amounts included in rates.
Rate Application Procedure
Avista's applications are proposals, subject to public review and a Commission decision. Copies of the
applications are available for public review at the offices of both the Commission and Avista, and on the
Commission's website (www.puc.idaho.gov). Customers may file with the Commission written comments
related to Avista's filings. Customers may also subscribe to the Commission's RSS feed
(http://www.puc.idaho.gov/rssfeeds/rss.htm)to receive periodic updates via e-mail about the case. Copies
of rate filings are also available on Avista's website at www.mvavista.com/rates.
If you would like to submit comments on the proposed rate change, you can do so by going to the
Commission website or mailing comments to:
Idaho Public Utilities Commission
P.O. Box 83720
Boise, ID 83720-0074

About Avista Corp.
Avista Corp. is an energy company involved in the production, transmission and distribution of energy as
well as other energy-related businesses. Avista Utilities is our operating division that provides electric
service to 417,000 customers and natural gas to 377,000 customers. Our service territory covers 30,000
square miles in eastern Washington, northern Idaho and parts of southern and eastern Oregon, with a
population of 1.7 million. AERC is an Avista subsidiary that, through its subsidiary AEL&P, provides retail
electric service to 17,000 customers in the city and borough of Juneau, Alaska. Our stock is traded under
the ticker symbol "AVA." For more information about Avista, please visit www.avistacorp.com.
This news release contains forward-looking statements regarding the company's current expectations.
Forward-looking statements are all statements other than historical facts. Such statements speak only as
of the date of the news release and are subject to a variety of risks and uncertainties, many of which are
beyond the company's control, which could cause actual results to differ materially from the expectations.
These risks and uncertainties include, in addition to those discussed herein, all of the factors discussed in
the company's and the Quarterly Report on Form 10-Q for the quarter ended Mar. 31, 2024, and its Annual
Report on Form 10-K for the year ended Dec. 31, 2023.
Avista Corp. and the Avista Corp. logo are trademarks of Avista Corporation.
SOURCE: Avista Corporation
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