Which utility serves my address in Massachusetts?

Massachusetts is served by National Grid, Eversource. Your bill names your utility at the top. Service maps do not follow county or town lines, so if your bill does not match what you expect, call (832) 263-8055 and we will check your exact address.

What is an all-in electricity rate?

The all-in rate is your total bill divided by the kilowatt-hours you used. It includes supply, delivery and riders, not the supply rate alone. It is the number that matters when comparing against solar, because solar offsets everything you would otherwise buy.

Can I still claim the 30% federal solar tax credit in Massachusetts?

The 30% federal Residential Clean Energy Credit under Section 25D ended for property placed in service after December 31, 2025. Homeowners buying with cash or a loan in 2026 cannot claim it. Section 48E still applies to third-party-owned systems such as leases and power purchase agreements, where the system owner claims it.

Why do Massachusetts electricity rates keep rising?

Utilities buy wholesale power through a regional grid operator. When capacity and energy prices rise there, they land across the state at roughly the same time rather than utility by utility. Demand from data centers is arriving faster than new generation is being built, and that gap shows up on the delivery side of the bill.

Home › Massachusetts Electric Rates

Massachusetts · Updated August 2026

Massachusetts electric rates in 2026

What every Massachusetts utility actually charges, where the number comes from, and what it means for your bill.

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Questions

The things people actually ask

What is the average electricity rate in Massachusetts?

About 29 to 30 cents per kilowatt-hour all-in as of August 2026, roughly 67% above the national average. National Grid and Eversource both raised basic service supply rates on August 1, 2026, by 11.8% and 10.8% respectively. Your own bill divided by your kilowatt-hours is the number that applies to you.

Is solar worth it in Massachusetts?

At 29 cents a kilowatt-hour it is one of the strongest cases in the country. A kilowatt of panels produces roughly 1,168 kWh a year here, so a 9 kW system is worth about $3,048 annually before incentives. Add the 15% state credit, the SMART production tariff and net metering, and Massachusetts has more incentive layers than almost any other state. Whether it beats your bill depends on your roof and your usage.

Does Massachusetts still have net metering?

Yes, and it runs alongside the SMART tariff. Net metering credits your exported power against your bill, subject to caps that vary by utility. SMART pays a separate per-kilowatt-hour incentive on everything you produce for ten years. The two stack. The caps are the thing to check before sizing a system.

Estimate what solar does against your Massachusetts electric bill

Enter your bill and we’ll size the array that would cover it, and show the gross value of that production at your rate. It does not net off the customer charge, taxes or what you would still draw at night — for that, use the bill savings calculator. Nothing is sent anywhere; this runs in your browser.

Your monthly bill

Your rate (¢/kWh)

Sun hours where you live

Shading

You use about—

System size to cover it—

Panels, roughly—

Roof area needed—

Your current annual electricity spend—

See what your roof actually produces →

An estimate from your own numbers, not a quote, and not a savings figure. It assumes 400 W panels, an 80% system derate and no roof constraints. Your real number depends on orientation, roof area and your utility’s export credit. Savings are not guaranteed.

Work it out further

Switch vs solar · What each actually fixes System size · How many panels your roof needsPayback period · When a purchase pays for itselfBattery backup · What a battery actually runsBill forecast · What your bill becomes in 25 years

Every utility, side by side

What Massachusetts homeowners pay

Utility	All-in rate	Full breakdown
National Grid	~30¢	Worcester, Lowell, Brockton, Quincy, Leominster, Attleboro… →
Eversource	~30¢	Boston, Cambridge, Springfield, Framingham, Newton, Lynn, … →

Figures as published August 2026. Each utility resets on its own schedule — check your bill for the rate on your account.

The production side

What a roof in Massachusetts produces

Massachusetts averages about 4.0 peak sun hours a day. A well-oriented kilowatt of panels produces roughly 1,168 kilowatt-hours a year. A typical 9 kW residential system therefore produces around 10,512 kilowatt-hours annually, which at a rate near 29.0¢ is worth roughly $3,048 a year before any incentive.

Those are pre-shading figures. Trees, roof pitch and orientation move them, sometimes a lot, which is why we read your specific roof rather than quoting a state average at you.

What has actually moved

Utility	Change	Effective
National Grid MA	+11.8%	August 1, 2026 — basic service supply
Eversource MA	+10.8%	August 1, 2026 — basic service supply
Massachusetts all-in average	~30¢	About 67% above the national average

What Massachusetts actually offers a homeowner

Massachusetts is one of the strongest incentive states in the country. A 15% state income tax credit capped at $1,000. The SMART tariff, which pays a per-kilowatt-hour incentive on production for ten years. A full sales tax exemption on residential solar equipment and a 20-year property tax exemption. And ConnectedSolutions, a utility battery program through Eversource and National Grid that pays for letting your battery discharge during peak events. The federal residential credit ended for systems placed in service after December 31, 2025.

How export credit works in Massachusetts

Two mechanisms run side by side. Net metering credits your exports against your bill, with caps that vary by utility and system size. The SMART tariff pays separately on every kilowatt-hour you produce, whether you use it or export it. The caps are the thing to check before sizing — how Massachusetts net metering and SMART work together.

How Massachusetts works

Why the number is what it is

Massachusetts law requires utilities to reset basic service supply twice a year, on 1 February and 1 August. Only about a quarter of households are actually on basic service — the rest are on municipal aggregation or a competitive supplier.

Massachusetts residential customers pay roughly 30 cents all-in, about 67% above the national average. New England leans heavily on natural gas for both heating and generation.

The honest cost picture

Two ways to pay for solar

If you buy the system you own the equipment, keep any renewable credits, and carry maintenance. If you use a PPA it is $0 upfront — we install and own the system, you buy the power it produces, and you only pay for what it actually generates.

The residential federal tax credit (25D) ended for property placed in service after December 31, 2025.

You will still see ads promising a 30% credit that “ends December 31.” Read the date on them. What remains applies to the owner of the system — which, under a PPA, is us. SolarAmerica does not provide tax advice; talk to your tax professional.

Who you would be working with

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Sources

Where these numbers come from

Every figure on this page is drawn from a public filing or a published rate schedule. We update it when the utility resets.

Massachusetts Department of Public Utilities — basic service filings
ISO New England — wholesale market data
U.S. Energy Information Administration — Electric Power Monthly
Utility basic service rate announcements

Last updated August 2026.

See what your roof and your utility add up to

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Local detail

Solar by county in Massachusetts

Every Massachusetts county has its own page with local towns, ZIP codes, peak sun hours and production math against the rate above. 14 in total.