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Massachusetts · Updated August 2026
What National Grid customers are actually paying, where the number comes from, and what it means for your bill. Serving Worcester, Lowell, Brockton, Quincy, Leominster, Attleboro and much of central and southeastern Massachusetts.
+11.8%Basic service supply increase effective August 1, 2026Ranked #1 by Solar Power World · Inc. 5000 · 20,000+ installations
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.
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.
The numbers
| Measure | Current | Detail |
|---|---|---|
| Basic service, fixed option | 17.185¢ | Up from 15.372¢ on August 1, 2026 |
| Basic service, variable option | 16.074¢ | Up from 15.546¢ |
| Increase at 1,000 kWh/month | +$18.13/mo | Supply portion only |
| Massachusetts all-in average | ~30¢ | About 67% above the national average |
Figures as published August 2026. Utility rates change on published schedules — check your own bill for the rate that applies to your account.
Why the number is what it is
Massachusetts law requires utilities to reset supply rates twice a year, in February and August. The August 1, 2026 reset raised National Grid's fixed basic service rate 11.8%, from 15.372¢ to 17.185¢.
Massachusetts sits at the end of the pipeline. An unusually cold winter drove regional gas demand, and New England's power generation leans heavily on natural gas.
Massachusetts residential customers pay roughly 30 cents all-in — about 67% above the national average of roughly 18 cents.
The honest cost picture
You own the equipment, you keep any renewable energy credits, and you carry the maintenance responsibility. Installed pricing varies by roof, shading and system size.
$0 upfront. We install and own the system; you buy the power it produces at a rate set in your agreement, and you only pay for what it actually generates. The system owner carries maintenance for the life of the agreement.
How $0-down solar works in Massachusetts → · What solar costs in Massachusetts →
Cities we cover in this utility area: Solar in Lowell → · Solar in Quincy → · Solar in Worcester →
You will still see ads promising a 30% credit that “ends December 31.” Read the date on them. If you buy a system today as a homeowner, you cannot claim that credit. 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 about your situation.
Going solar with National Grid
When your panels make more power than your home is using, the extra flows onto National Grid’s grid and is credited on your National Grid bill under Massachusetts’s net metering rules. How much each exported kilowatt-hour is worth is set by those rules, and it is one of the biggest factors in how your system should be sized. How net metering works in Massachusetts.
National Grid connects home solar systems to its grid and credits the power you send back, but it does not install panels. State incentives are covered in our Massachusetts solar incentives guide, and SolarAmerica handles the National Grid interconnection application for you.
There is no separate sign-up. It is set up as part of the interconnection application your installer files with National Grid before your system is turned on, and SolarAmerica files it for you.
$0-down solar in Massachusetts → · Solar panel installation cost in Massachusetts → · Net metering credit calculator →
Local SolarAmerica installations
SolarAmerica has installed solar for homeowners served by National Grid. Homes shown here: Hanover, Beverly and Worcester (10.66 kW).
Hanover · Plymouth County, Massachusetts
SolarAmerica designed this system and managed the project; a licensed local partner installed it.
Beverly · Essex County, Massachusetts
SolarAmerica designed this system and managed the project; a licensed local partner installed it.
Worcester · Worcester County, Massachusetts
SolarAmerica designed this system and managed the project; a licensed local partner installed it.
Your electricity use, utility plan and roof shape your options. Request a review for your home.
Electric bill & solar offset calculator · Solar system size calculator · Solar panel installation cost in Massachusetts · All local solar projects
Homeowner names and addresses are kept private. SolarAmerica designs systems and manages projects; licensed partner contractors perform installation.
Who you would be working with
We design your system and manage the project; installation is performed by vetted licensed partners in your area.
National Grid questions
Probably not. About three quarters of Massachusetts households are on municipal aggregation or a competitive supplier instead. Check the supply line on your bill — if it names a supplier other than National Grid, the basic service change does not apply directly to you.
February 1, 2027. Massachusetts law fixes the reset schedule at twice a year.
At roughly 30 cents all-in — among the highest rates in the country — the per-kilowatt-hour math in Massachusetts is stronger than in most sunnier states with cheap power.
About 60 seconds. No cost, no obligation, and we will tell you if solar does not make sense for your home.
Ranked #1 by Solar Power World · 20,000+ installations · Licensed installers
Sources
Every figure on this page is drawn from a public filing or a published rate schedule. We update it when the utility resets.
Last updated August 2026. Rates change on each utility's published schedule — check your own bill for the rate that applies to your account.