Avista Corp electricity rates
Avista Corp charges an average of 11.62 cents per kilowatt-hour to residential customers, and the average household on its system paid $102 a month using 881 kilowatt-hours, according to its 2024 filing with the U.S. Energy Information Administration.
Investor-owned utility AVA Idaho
Where Avista Corp sits
It serves 128,226 residential customers in Idaho. Its 11.62¢ per kilowatt-hour sits 5.9% below the Idaho average of 12.35¢.
Consumption is close to the national norm at 881 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 | 11.62¢ | $102 | 881 |
| Idaho average | 12.35¢ | $111 | 904 |
| 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 Idaho 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.
- Benewah
- Bonner
- Clearwater
- Idaho
- Kootenai
- Latah
- Lewis
- Nez Perce
- Shoshone
How often the power goes out
In 2024 the average Avista Corp customer went 225 minutes without electricity across 1.26 interruptions. The median across the 941 utilities that report this is 185 minutes.
That is worse than typical. Overhead lines through wooded or storm-exposed terrain are the usual explanation, and the fix is vegetation management and circuit automation, both of which are recovered through rates.
Rooftop solar on this system
659 residential customers had net-metered solar in 2024, totalling 4.37 megawatts. That works out to 5.1 installations per thousand customers, against a median of 8 across the utilities reporting it.
Adoption is below the national median. A low retail rate reduces what solar displaces, and export compensation set at avoided cost rather than the retail rate reduces it further. What exports are actually worth.
Other Idaho utilities
| Utility | Rate | Bill | Customers |
|---|---|---|---|
| Idaho Power Co | 11.76¢ | $108 | 525,751 |
| PacifiCorp | 12.11¢ | $109 | 74,170 |
| Kootenai Electric Cooperative | 12.21¢ | $138 | 30,378 |
| City of Idaho Falls | 9.25¢ | $88 | 28,142 |
| Northern Lights, Inc | 11.49¢ | $124 | 18,511 |
Avista Corp rates: common questions
How much does Avista Corp charge per kilowatt-hour?
An average of 11.62 cents per kilowatt-hour across its residential customers in 2024. That is -5.9% against the Idaho average of 12.35¢ and -37.0% 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?
$102 a month, based on total residential revenue divided by residential customers over the 2024 survey year, at an average of 881 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 Idaho utilities?
It ranks #4 of the 12 Idaho utilities covered here, counting from the most expensive. Nationally it ranks #1104 of 1369.