US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

NewInsight: Investor-owned utilities charge 23% more for power

Idaho

Avista electricity rates

What homes pay Avista for electricity, from EIA.

Investor-owned utility, 131,568 homes in Idaho. EIA lists it as Avista Corp.

Headlines

Average price
12.8¢ a kWh
Up 11% on a year ago
Average bill
$110 a month
Up 5.4% on a year ago
Average use
860 kWh
A month. Idaho 906 kWh
Price rank in Idaho
4 of 5
1 is the most expensive

Over the 12 months to August 2026, Avista homes paid 12.8¢ a kWh, against 12.8¢ across Idaho.

Avista vs Idaho

AvistaIdaho
Average price, 12 months to August 202612.8¢12.8¢
Price in August 202613.2¢13.4¢
Average monthly bill, 12 months$110$116
Bill in August 2026$114$137
Average monthly use860 kWh906 kWh
Price change, past year+11%+9.8%
Price change since 2019+32%+29%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including August 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including August 2026

Source: EIA-861M monthly utility survey.