See the latest monthly state residential average, compare it with the annual benchmark, and calculate operating costs using your own inputs.
Latest monthly residential price28.82¢/kWh
+56.3% above U.S. monthly average
1,000 kWh energy cost$288.20
Latest U.S. average18.44¢/kWh
Latest monthly rank#5 of 51
What different usage levels cost in Massachusetts
Multiply monthly kilowatt-hours by $0.2882 per kWh to estimate energy charges at the latest 2026-05 statewide residential average. Fixed charges and plan-specific adjustments are not included.
Monthly useEnergy costAnnual equivalent
500 kWh$144.10$1729/yr
750 kWh$216.15$2594/yr
1,000 kWh$288.20$3458/yr
1,250 kWh$360.25$4323/yr
1,500 kWh$432.30$5188/yr
In the latest monthly dataset, Massachusetts ranks #5 from highest to lowest among the 50 states and District of Columbia. Its less seasonal 2025 annual average was 30.48¢/kWh, ranking #3. See the annual ranking.
Calculate an appliance at the Massachusetts average
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watts
hours
days
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EIA residential average price, not a utility-specific rate. Your bill’s all-in rate gives the best personal estimate.
Live estimate
Estimated monthly cost$51.88at 28.82¢ per kWh
Per day$1.73
Per year$631
Monthly use180.0 kWh
Transparent calculation(1500 W ÷ 1,000) × 4 hr × 30 days × $0.288/kWh
Actual use can differ when equipment cycles or changes power. Measure at the wall when precision matters.
A statewide average cannot reproduce your utility rate plan. Check whether your bill includes tiered pricing, time-of-use periods, a longer billing cycle, fuel or delivery adjustments, fixed customer charges, taxes, or credits.
Use your actual all-in price when possible
For a personal estimate, divide the total electric charges on your bill by the total kWh used. That captures the combined price represented on that bill.
total electric charges ÷ total kWh = your all-in $/kWh
Turn the Massachusetts benchmark into a bill-specific estimate
A Massachusetts bill can include supply and delivery charges, fixed customer charges, adjustments, and taxes. The EIA statewide average combines utility revenue and sales, so it is useful for comparison but does not reproduce a household's exact utility territory or supply arrangement.
For a historical all-in price, divide current electric charges by billed kWh. For a new appliance, identify which per-kWh charges would actually increase and keep fixed charges separate.
Use charges and kWh from the same billing period.
Check whether the supply price is from the utility or a competitive supplier.
Separate fixed customer charges from usage-based charges.
Compare average daily kWh when billing periods have different lengths.
What is the latest average residential electricity price in Massachusetts?
The latest EIA monthly value available for Massachusetts is 28.82 cents per kilowatt-hour for 2026-05. The 2025 annual comparison value is 30.48 cents per kWh. These are revenue-based averages, not utility-specific rates for every household.
How much does 1,000 kWh cost in Massachusetts?
At the latest 2026-05 average of 28.82 cents per kWh, 1,000 kWh of energy charges equals about $288.20 before any separate fixed fees or adjustments.
Why can my utility rate differ from the state average?
Utility territory, rate plan, time of use, fuel adjustments, taxes, fixed fees, and the billing period can all change the price a household actually pays.
Data source
U.S. Energy Information Administration, Electricity Retail Sales, residential average price. Latest monthly data: 2026-05; comparison baseline: 2025 annual. Verified 2026-08-05. Monthly prices can vary seasonally and are not utility-specific rates.