Montana electricity prices, May 2026
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In May 2026, residential customers in Montana paid an average of 14.67¢ per kilowatthour, up 13.9% on the same month a year earlier (12.88¢). The US average for the month was 18.44¢; Montana was 20% below that. It ranked 39th highest among the 50 states and the District of Columbia.
Residential sales were 396,674 MWh, up 2.5% on a year earlier, and the average residential bill for the month was $101.68 on 693 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 | May 2026 | May 2025 | Change | US, May 2026 |
|---|---|---|---|---|
| Residential | 14.67¢ | 12.88¢ | +13.9% | 18.44¢ |
| Commercial | 13.24¢ | 11.63¢ | +13.8% | 13.54¢ |
| Industrial | 6.97¢ | 7.01¢ | -0.6% | 8.71¢ |
| All sectors | 11.86¢ | 10.64¢ | +11.5% | 13.83¢ |
Sales and customers
| Measure | May 2026 | May 2025 | Change |
|---|---|---|---|
| Residential sales | 396.7 GWh | 387 GWh | +2.5% |
| Sales, all sectors | 1.1 TWh | 1.1 TWh | +1.0% |
| Residential customers | 572,400 | 565,283 | +1.3% |
| Average residential bill | $101.68 | $88.16 | +15.3% |
| Average residential use, kWh | 693 | 685 | +1.2% |
| US residential price | 18.44¢ | 17.37¢ | +6.2% |
The two years to May 2026
Montana residentialUS residential
Questions and answers
What was the average electricity price in Montana in May 2026?
14.67¢ per kilowatthour for residential customers, 13.24¢ for commercial and 6.97¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 12.88¢ in May 2025, a change of +13.9%. Residential sales changed by +2.5% over the same period.
What was the average residential bill that month?
$101.68, on average use of 693 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 Montana page.