Avista Corp will hold its quarterly conference call and webcast to discuss third quarter 2026 results on Wednesday, November 4, 2026, at 10:30 am Eastern Daylight Time.

A news release containing the third quarter 2026 earnings information will be issued earlier that day at 7:05 am Eastern Daylight Time. This schedule allows investors to review the financial data before participating in the live discussion.

Accessing the Webcast

The call can be accessed on Avista’s website at investor.avistacorp.com. Participants are required to pre-register for the call via the Presentations and Events link at the company's website to access the call-in details for the webcast. A replay of the webcast will be available for one year on the Avista Corp. website.

Company Profile

Avista is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is the operating division that provides electric service to 429,000 customers and natural gas to 386,000 customers. Its service territory covers 34,000 square miles in eastern Washington, northern Idaho and parts of southern and eastern Oregon, with a population of 1.5 million.

Alaska Energy and Resources Company is an Avista subsidiary that provides retail electric service to 18,000 customers in the city and borough of Juneau, Alaska, through its subsidiary Alaska Electric Light and Power Company.

Avista Corp (NYSE: AVA) filed annual rate adjustment requests with the Washington Utilities and Transportation Commission (WUTC) on Aug. 31, 2026, seeking to lower natural gas rates by approximately 11.5% for customers in the state.

The filing aims to true-up customer rates with actual costs incurred by the company. If approved, the adjustment would reduce monthly bills for most residential natural gas customers using an average of 61 therms per month by approximately $7.38, from $96.18 to $88.80.

Electric rates would see negligible change, decreasing by approximately 0.01%. The filings are separate from Avista’s pending general rate case and reflect specific annual cost reviews.

Natural Gas Adjustments

The proposed overall decrease of $34.3 million in natural gas charges is driven primarily by the Climate Commitment Act (CCA) and lower wholesale gas prices.

The CCA adjustment trues up actual compliance costs with amounts currently included in rates. It also updates benefits returned to customers from consignment allowances allocated by the Washington Department of Ecology. State law mandates these revenues eliminate CCA cost burdens for low-income customers. Premises connected after July 25, 2021, are ineligible for CCA benefits.

The PGA reflects lower wholesale natural gas prices during the past winter, which fell below previously approved levels. This adjustment covers both commodity costs and interstate transportation expenses.

Impact by Customer Class

Rate decreases vary significantly across customer schedules due to differing impacts of the PGA and CCA charges.

Transportation service customers on Schedule 146, who procure their own wholesale gas and interstate transport, are not subject to the PGA. Consequently, they see larger decreases as CCA charges constitute a smaller portion of their bills compared to residential customers.

Electric Adjustments

Electric rate adjustments largely offset one another, resulting in a net decrease of approximately $20,000 (0.01%).

The CEIP increase recovers costs associated with implementing Washington’s Clean Energy Transformation Act (CETA), including investments in vulnerable populations via the Named Communities Investment Fund (NCIF). The Residential Exchange Program adjustment returns slightly more benefits from the federal Columbia River power system to qualifying customers due to usage fluctuations.

Residential electric customers using an average of 925 kilowatt-hours per month would see bills decrease by approximately $0.05, from $125.69 to $125.64.

What the Numbers Show

The disparity between residential and non-residential natural gas rate reductions highlights the structural impact of regulatory cost allocations. While residential customers on Schedule 101 face a modest 5.7% decrease, transportation service customers on Schedule 146 see a 35.7% drop. This divergence stems from the fact that Schedule 146 customers bypass the Purchased Gas Adjustment (PGA) mechanism entirely, making their bills more sensitive to the Climate Commitment Act (CCA) benefit distribution, which constitutes a smaller baseline percentage of their total charges compared to residential users.

Customer Assistance

Avista noted that many households face financial pressures. Customers may qualify for assistance through the My Energy Discount program, payment arrangements, or emergency energy aid via local community action agencies.