Avista Corp electricity rates
Avista Corp charges an average of 11.87 cents per kilowatt-hour to residential customers, and the average household on its system paid $107 a month using 901 kilowatt-hours, according to its 2024 filing with the U.S. Energy Information Administration.
Investor-owned utility AVA Washington
Where Avista Corp sits
It serves 246,055 residential customers in Washington. At 11.87¢ per kilowatt-hour it is one of the cheaper places to buy electricity in Washington, 20.6% under the statewide average of 14.95¢.
Consumption is close to the national norm at 901 kilowatt-hours a month against 871, so the rate translates fairly directly into the bill.
A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.
| Rate | Monthly bill | Monthly kWh | |
|---|---|---|---|
| Avista Corp | 11.87¢ | $107 | 901 |
| Washington average | 14.95¢ | $130 | 936 |
| United States average | 18.44¢ | $155 | 871 |
Utility figures: U.S. Energy Information Administration, Form EIA-861 annual electric power industry report, 2024. State and national figures: Electric Power Monthly, May 2026. Methodology
Where Avista Corp delivers
Its service territory covers 9 Washington counties, either wholly or in part. Utility boundaries follow historic franchise agreements rather than county lines, so a county appearing here does not mean every address in it is served by Avista Corp.
- Adams
- Asotin
- Ferry
- Grant
- Lincoln
- Pend Oreille
- Spokane
- Stevens
- Whitman
How often the power goes out
In 2024 the average Avista Corp customer went 152 minutes without electricity across 0.96 interruptions. The median across the 941 utilities that report this is 185 minutes.
That is better than the typical American utility, though the figure includes major storm days and can move sharply from one year to the next.
Rooftop solar on this system
4,425 residential customers had net-metered solar in 2024, totalling 27.73 megawatts. That works out to 18 installations per thousand customers, against a median of 8 across the utilities reporting it.
Adoption is above the national median, which generally tracks the retail rate more closely than it tracks sunshine. What exports are actually worth.
Other Washington utilities
| Utility | Rate | Bill | Customers |
|---|---|---|---|
| Puget Sound Energy Inc | 14.63¢ | $128 | 1.1 million |
| City of Seattle | 14.09¢ | $85 | 459,964 |
| PUD No 1 of Snohomish County | 11.51¢ | $109 | 346,532 |
| PUD No 1 of Clark County | 10.41¢ | $105 | 219,477 |
| City of Tacoma | 10.81¢ | $98 | 180,357 |
Avista Corp rates: common questions
How much does Avista Corp charge per kilowatt-hour?
An average of 11.87 cents per kilowatt-hour across its residential customers in 2024. That is -20.6% against the Washington average of 14.95¢ and -35.6% against the national average of 18.44¢. It is an all-in average across every residential rate schedule the utility offers, not a specific tariff.
What is the average Avista Corp bill?
$107 a month, based on total residential revenue divided by residential customers over the 2024 survey year, at an average of 901 kWh a month. The national average bill is $155 at 871 kWh.
Who owns Avista Corp?
It is classified by the EIA as a investor-owned utility. A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested.
Is Avista Corp expensive compared with other Washington utilities?
It ranks #9 of the 34 Washington utilities covered here, counting from the most expensive. Nationally it ranks #1060 of 1369.