Eversource Massachusetts electricity rates

What a typical NSTAR Electric Company bill costs

At 1,000 kWh a month the 5 generally available plans here run from $3,116.40 on Greater Boston Residential R-1 (A1) to $4,183.44 on Cape Cod Residential Rate (R-1), with a median of $3,116.40.

Effective rates span 26.0¢ to 34.9¢ per kWh at that usage.

What NSTAR Electric Company's customers were billed in 2024

At 458 kWh a month, NSTAR Electric Company's median open plan comes to 26.9¢ per kWh, 10% below the 29.9¢ its customers were billed in 2024, riders included. Charges the schedules as recorded leave out, such as a monthly fuel adjustment, may account for some of that.

How the Greater Boston Residential R-1 (A1) bill at 1,000 kWh has moved since 2014

NSTAR Electric Company's Greater Boston Residential R-1 (A1) cost $185.16 a month under its April 2014 version, filed then as Boston Edison Company Residential R-1 (A1), and costs $259.70 under its February 2026 one, 40% more. Its biggest single step, in April 2015, added $52.97 (29%). In Massachusetts, EIA's average price rose 75% between 2014 and 2025.

In the guides: Why electricity rates change

How it compares

Among the 100 utilities indexed, NSTAR Electric Company's cheapest open plan is the 11th-highest, 69% more than their median of $1,849.47. It sits between The Narragansett Electric Co ($3,047.52) and Ohio Edison Co ($3,171.48).

No other utility indexed in Massachusetts has a cheaper open plan; the other one starts higher.

Its fixed charge, $7.50 a month on Greater Boston Residential R-1 (A1), is lower than on the cheapest plan of 93 of the other 99 utilities.

None of NSTAR Electric Company's plans open to any household has a tiered step or a seasonal price in this data: a kWh costs the same however much is used and whatever the month.

In the guides: What a bill costs before a single kilowatt-hour

Which plan from NSTAR Electric Company 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: $548.52 a year at 500 kWh against $2,104.08 at 2,000 kWh.

Cheapest 6 plans at 1,000 kWh a month

Greater Boston Residential R-1 (A1) — $3,116.40 a year, 26.0¢ per kWh effective, flat rate. It carries a $7.50 monthly standing charge. In effect since February 2026.

Cambridge Electric Light Company Residential R-1 (01) — $3,116.40 a year, 26.0¢ per kWh effective, flat rate. It carries a $7.50 monthly standing charge. In effect since February 2026.

South Shore Residential R-1 Annual BS (32) — $3,116.40 a year, 26.0¢ per kWh effective, flat rate. It carries a $7.50 monthly standing charge. In effect since February 2026.

Eastern Massachusetts Residential Rate (R-1) — $3,820.42 a year, 31.8¢ per kWh effective, flat rate. It carries a $7.00 monthly standing charge. In effect since January 2024.

Cape Cod Residential Rate (R-1) — $4,183.44 a year, 34.9¢ per kWh effective, flat rate. It carries a $10.00 monthly standing charge. In effect since January 2024.

Greater Boston Residential Assistance A4 (R-3) without electric heat — $1,175.88 a year, 9.8¢ per kWh effective, flat rate. It carries a $7.50 monthly standing charge. In effect since February 2026. Restricted: delivery charges only.

How NSTAR Electric Company's plans are structured

Of 39 priceable plans: 39 flat-rate.

Fixed monthly charges run from $7.00 to $10.00.

NSTAR Electric Company's published schedules

NSTAR Electric Company was found serving Boston, Massachusetts. 39 of its 39 published residential schedules can be priced.

The largest saving among NSTAR Electric Company's plans

Moving from Cape Cod Residential Rate (R-1) to Greater Boston Residential R-1 (A1) saves $1,067.04 a year at 1,000 kWh a month, with no change in consumption.