Electricity rates — Massachusetts

What a typical bill in Massachusetts costs

At 1,000 kWh a month the 6 generally available plans here run from $3,116.40 on Greater Boston Residential R-1 (A1) to $5,322.00 on R-1 Residential, with a median of $3,468.41.

Effective rates span 26.0¢ to 44.4¢ per kWh at that usage.

What households in Massachusetts pay, by EIA's count

Massachusetts's residential electricity averaged 30.4¢ per kWh over the 12 months to June 2026, the 3rd-highest of the 50 states and DC and 70% above the US average of 17.9¢. It sits between Rhode Island (29.0¢) and California (32.9¢).

EIA lists 20 utilities serving homes in Massachusetts. By homes served, the largest 5 are NSTAR Electric Company (1,303,076), Massachusetts Electric Co (1,210,113), City of Taunton (35,684), Town of Reading - (MA) (27,405), and Fitchburg Gas & Elec Light Co (26,290). Municipal utilities supply about 9% of its households.

Massachusetts homes used the most electricity in July and the least in May (2021–2025): a summer peak, 1.5 times the lightest month. August's bills were the highest, averaging $191; May's the lowest, $129. December was the dearest month per kWh, 10% above June.

The utilities with a ranked plan on this page serve about 89% of Massachusetts's households: NSTAR Electric Company (1,303,076), Massachusetts Electric Co (1,210,113). Their median plan at 1,000 kWh a month works out to 28.9¢ per kWh, 5% below EIA's average, which is why this page compares that median with other states'.

Chart of this for reuse (PNG), free to republish under CC BY 4.0 with credit to WattClear. Suggested alt text: “Bar chart. Massachusetts's average home electricity price, July 2025 to June 2026, was 1.3% higher than the 12 months before, the 46th-largest rise of the 50 states. Washington, DC: +24.9%. United States average: +6.7%. Source: U.S. Energy Information Administration.”

In the guides: Summer and winter bills, state by state

How Massachusetts compares

At 1,000 kWh a month the median plan in Massachusetts costs $3,468.41 a year: the 5th-highest of the 30 states whose indexed plans stand for them, and 51% more than their median of $2,303.60. It sits between Rhode Island ($3,047.52) and Maine ($3,483.26).

Its cheapest open plan, Greater Boston Residential R-1 (A1) from NSTAR Electric Company at $3,116.40, is the 4th-highest of the 30 states' cheapest plans.

4 of its 51 priceable plans price by the hour, the 6th-smallest share of any state here.

In the guides: What published electricity plans cost, state by state · What a plan charges by the hour, and what moving a kilowatt-hour is worth

What each provider in Massachusetts costs

2 utilities serve customers across Massachusetts in this data. At 1,000 kWh a month the cheapest of them is NSTAR Electric Company at $3,116.40 a year on Greater Boston Residential R-1 (A1); the dearest is Massachusetts Electric Co at $5,322.00.

That is $2,205.60 a year between the best each provider offers.

Cheapest available plan by provider: NSTAR Electric Company $3,116.40; Massachusetts Electric Co $5,322.00.

Which plan in Massachusetts is cheapest as use rises

Greater Boston Residential R-1 (A1) is cheapest at every level tested — $1,603.20 a year at 500 kWh a month, $6,142.80 at 2,000 kWh.

The penalty for a poor choice grows with usage: $1,117.80 a year at 500 kWh against $4,381.20 at 2,000 kWh.

How Massachusetts's plans are structured

Of 51 priceable plans: 4 time-of-use, 47 flat-rate.

Fixed monthly charges run from $6.70 to $20.00.

Who provides Massachusetts's plans

These plans come from 2 utilities: Massachusetts Electric Co, NSTAR Electric Company.

The largest saving among Massachusetts's plans

Moving from R-1 Residential to Greater Boston Residential R-1 (A1) saves $2,205.60 a year at 1,000 kWh a month, with no change in consumption.

What the Massachusetts figures do not cover

4 of these plans price by the hour; their figures assume the typical hourly pattern of homes in Massachusetts, not this household's own hours.