Montana electricity prices - 14.99¢/kWh (July 2026)
Residential price, average bill, and the data-center story
- Residential electricity in Montana costs 14.99¢/kWh as of - +5.0% year over year, per U.S. Energy Information Administration data.
- The average Montana home used 889 kWh that month and paid an average bill of $133.30 (+13.4% vs a year earlier).
- Montana has the 38th-highest residential electricity price of the 50 states and DC - 18% below the U.S. average of 18.31¢/kWh.
Price by sector
| Sector | ¢/kWh (July 2026) | 1-yr change |
|---|---|---|
| Residential | 14.99¢ | +5.0% |
| Commercial | 13.33¢ | +3.9% |
| Industrial | 7.71¢ | 0.0% |
Water
Electricity delivered in Montana carries 23.01 liters of water per kilowatt-hour consumed at the power plants supplying it (0.93 L/kWh excluding hydropower reservoir evaporation), against a national average of 4.28. That is above the national figure, and it is a property of the grid here rather than of any one building: a data center drawing 100 GWh a year in Montana accounts for about 607.9 million gallons of power-plant water before it cools anything. All states ranked →
A data center's water use is roughly twelve times larger once the water evaporated at its power plants is counted. The Colorado River arithmetic → · how the water numbers work →
All states ranked → · Download Montana data (CSV) · Glossary