Electricity Rate in Massachusetts (2026): 31.51c/kWh Average

Massachusetts electricity averages 31.51 cents per kWh for residential customers as of April 2026, according to the EIA Electric Power Monthly. This is 13.86c above the US average of 17.65c/kWh. The average monthly bill for Massachusetts households is $198 based on typical usage of 629 kWh.

Massachusetts electricity at 31.51c/kWh is the second most expensive mainland state rate, driven by three factors: (1) ISO-NE capacity market prices, which clear higher in New England than any other US grid market due to limited transmission interconnection and natural-gas pipeline constraints; (2) Eversource and National Grid Massachusetts both have pending and recently-approved rate cases for storm hardening, offshore wind integration, and EV infrastructure - combined investment running billions over five years; (3) Massachusetts' aggressive Renewables Portfolio Standard (RPS) requires 35% renewable energy by 2030, driving offshore wind procurement costs that are built into rates. The state does allow retail choice through competitive suppliers, but most customers remain on default utility supply. MassSave offers heat pump and weatherization rebates that can reduce electricity bills for homes electrifying heating.

Generation mix: Natural gas 62%, offshore wind 15%, nuclear 10%, solar 13%. The fuel mix is a primary driver of electricity rates - states with abundant hydro or nuclear tend to have lower rates, while states dependent on imported petroleum (Hawaii) or natural gas pay more.

Year-over-year change: Massachusetts rates rose 6.8% year-over-year as of April 2026. This compares to the US average increase of 5.4% over the same period.