Massachusetts electricity prices - 29.61¢/kWh (June 2026)
Residential price, average bill, and the data-center story
- Residential electricity in Massachusetts costs 29.61¢/kWh as of - −2.4% year over year, per U.S. Energy Information Administration data.
- The average Massachusetts home used 576 kWh that month and paid an average bill of $170.54 (−0.1% vs a year earlier).
- Massachusetts has the 3rd-highest residential electricity price of the 50 states and DC - 61% above the U.S. average of 18.34¢/kWh.
Price by sector
| Sector | ¢/kWh (June 2026) | 1-yr change |
|---|---|---|
| Residential | 29.61¢ | −2.4% |
| Commercial | 24.52¢ | +6.7% |
| Industrial | 18.97¢ | −4.1% |
Water
Electricity delivered in Massachusetts carries 3.33 liters of water per kilowatt-hour consumed at the power plants supplying it (0.63 L/kWh excluding hydropower reservoir evaporation), against a national average of 4.28. That is below 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 Massachusetts accounts for about 88 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 Massachusetts data (CSV) · Glossary