States › Washington › September 2025
Washington electricity prices, September 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In September 2025, residential customers in Washington paid an average of 13.79¢ per kilowatthour, up 11.3% on the same month a year earlier (12.39¢). The US average for the month was 18.08¢; Washington was 24% below that. It ranked 45th highest among the 50 states and the District of Columbia.
Residential sales were 2,540,441 MWh, up 3.5% on a year earlier, and the average residential bill for the month was $102.72 on 745 kWh. Weather moves monthly sales far more than prices do, so bills swing with the season.
EIA marks this month as preliminary. Preliminary months come from the Form EIA-861M sample and are revised when the annual census is complete.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Monthly figures come from the Form EIA-861M sample and are revised when EIA finalises the year.
Price by sector
| Sector | Sep 2025 | Sep 2024 | Change | US, Sep 2025 |
|---|---|---|---|---|
| Residential | 13.79¢ | 12.39¢ | +11.3% | 18.08¢ |
| Commercial | 10.99¢ | 9.75¢ | +12.7% | 13.99¢ |
| Industrial | 7.22¢ | 6.65¢ | +8.6% | 9.02¢ |
| All sectors | 11.23¢ | 9.98¢ | +12.5% | 14.21¢ |
Sales and customers
| Measure | Sep 2025 | Sep 2024 | Change |
|---|---|---|---|
| Residential sales | 2.5 TWh | 2.5 TWh | +3.5% |
| Sales, all sectors | 6.8 TWh | 6.8 TWh | 0.0% |
| Residential customers | 3,409,903 | 3,365,812 | +1.3% |
| Average residential bill | $102.72 | $90.34 | +13.7% |
| Average residential use, kWh | 745 | 729 | +2.2% |
| US residential price | 18.08¢ | 16.82¢ | +7.5% |
The two years to September 2025
Washington residentialUS residential
Questions and answers
What was the average electricity price in Washington in September 2025?
13.79¢ per kilowatthour for residential customers, 10.99¢ for commercial and 7.22¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 12.39¢ in September 2024, a change of +11.3%. Residential sales changed by +3.5% over the same period.
What was the average residential bill that month?
$102.72, on average use of 745 kWh. This is residential revenue divided by residential customers for the month.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861M sales and revenue workbook (state by sector and month), status "Preliminary" for this month, series published through July 2026. Public domain. Price = revenue ÷ sales; bill = residential revenue ÷ residential customers. Utility-level annual figures are on the Washington page.