NSTAR Electric Company Rates: Average Bill & Price per kWh

Residential rates for NSTAR Electric Company and how they compare to the Massachusetts average — 2024 EIA-861 annual data.

Data through 2024 EIA-861, verified Oct 11, 2026

Residential customers of NSTAR Electric Company average $100.31/month at 19.92¢/kWh — below the Massachusetts average of $170.54.

Avg bill (2024)$100.31/moannual average Rate19.92¢/kWh Res. customers1,303,076 Bill rank#22 in MAof tracked utilities

Where NSTAR Electric Company rates are heading

Annual residential figures from Form EIA-861, 2019–2024.

NSTAR Electric Company price per kWh (annual) ▲ 18.1% over 2019–2024
NSTAR Electric Company price per kWh (annual) 16.4¢ 19.1¢ 21.7¢ 19.9¢ 2019 2024
YearRateAvg billRes. customers
2019 16.88¢/kWh $88.56/mo 1,239,884
2020 16.37¢/kWh $90.17/mo 1,246,086
2021 16.56¢/kWh $89.85/mo 1,255,128
2022 20.18¢/kWh $102.07/mo 1,289,709
2023 21.74¢/kWh $107.96/mo 1,283,644
2024 19.92¢/kWh $100.31/mo 1,303,076

Rate context in Massachusetts

Statewide residential price trend (12 months) — context for NSTAR Electric Company's 2024 annual figure.

Massachusetts price per kWh (12 months) ▼ 1.5% over Jul 25–Jun 26
Massachusetts price per kWh (12 months) 28.8¢ 30.1¢ 31.4¢ 29.6¢ Jul 25 Jun 26

NSTAR Electric Company vs its state

Annual utility averages next to the latest statewide monthly figure — different windows, both labeled.

MeasureNSTAR Electric CompanyMassachusetts (latest month)
Avg bill $100.31/mo $170.54/mo
Rate 19.92¢/kWh 29.61¢/kWh

Cities served by NSTAR Electric Company

Common questions

How much is the average electric bill with NSTAR Electric Company?

NSTAR Electric Company residential customers averaged $100.31 per month in 2024 (EIA-861 annual data) — about $1,203.77 per year.

What does NSTAR Electric Company charge per kWh?

NSTAR Electric Company averaged 19.92¢ per kWh for residential service in 2024 (annual revenue divided by sales, EIA-861). Actual rates depend on your plan and season.

How does NSTAR Electric Company compare to the Massachusetts average?

NSTAR Electric Company bills average $100.31 — lower than the Massachusetts average of $170.54 (latest EIA month).

How many customers does NSTAR Electric Company serve?

NSTAR Electric Company served 1,303,076 residential customers in 2024, per EIA-861 — one of the largest utilities we track in MA.

Data: Form EIA-861, 2024 annual residential figures for NSTAR Electric Company. Bill = residential revenue ÷ customers ÷ 12; rate = revenue ÷ sales. State context uses the latest EIA monthly data. See methodology.