Compare rates and terms from certified suppliers in Charlton City, Massachusetts.
National Grid still delivers your power.
Cancel rate monitoring anytime.
You'll need your National Grid account number. Takes about 2 minutes.
Rates are checked daily. If a plan beats your utility's rate, you're switched automatically — it kicks in at your next meter read.
Rates are checked every day. When your contract's up, you're moved to the next best deal. You don't have to do anything.
"Older house, uses a lot of electricity. Switching made a real difference on the bill. Finally."
"My girlfriend kept telling me to do this. Finally did. She was right, bills are lower now."
"Signed up, saved money, renewed when it ended. Just have to stay on top of it."
We rank National Grid competitive supply plans by total monthly bill at your usage — customer charges and fees included — so the cheapest one wins on real math, not marketing. Enter your typical monthly usage and we'll show the all-in cost for every available plan. How we calculate.
The questions our readers actually ask
Three questions, three widgets. Every number below comes from National Grid's official tariff on file with the Massachusetts Department of Public Utilities (DPU), aggregated by NREL's U.S. Utility Rate Database — not marketing math.
Year-by-year approved rates, fixed charges, and tariff filings since 2010.
Source:Tariff schedules filed with the Massachusetts Department of Public Utilities (DPU), indexed by NREL'sU.S. Utility Rate Database (URDB). Individual tariff PDF links appear inside each chart and plan card above.
The cheapest electricity rate in ZIP code 01508 is 16.2¢/kWh from Clearview Energy for the supply portion of your bill. This National Grid service area is part of Massachusetts' Energy Choice program, where you can choose your electricity supplier while National Grid continues delivering your power. National Grid offers a Basic Service rate of 17.2¢/kWh—if a competitive supplier beats this rate, you save money. Compare all available supplier rates above to find the best deal.
Rates are for supply only · Your National Grid delivery charges stay the same regardless of supplier
The lowest electricity rate for National Grid customers in ZIP code 01508 is 16.2¢/kWh from Clearview Energy. National Grid's current Basic Service rate is 17.2¢/kWh. Switching from National Grid's default rate could save you up to 6% on electricity supply charges.
Rates verified October 2026•Reviewed by the ElectricRates editorial team•Source: MA DPU
Smart Enroll is a one-time enrollment request for National Grid customers. Instead of picking a plan, you authorize our partner Enroll Power to enroll you in the best fixed rate below National Grid's standard rate once one is available, and to renew you at the next qualifying rate when that contract ends.
Provide your name, email, and phone number so we can keep you informed when your request is matched or renewed.
Enter your account number (found on your bill) and service address. This identifies the utility account for your enrollment request.
Sign the Letter of Authorization (LOA) so Enroll Power can match your request to the best fixed rate below your utility's standard rate once one is available, then renew you at the next qualifying rate when that contract ends.
What happens after you enroll: Enroll Power checks MA DPU-licensed suppliers' fixed rates daily. Once a qualifying rate is available, it matches and files your enrollment request. When that contract ends, it seeks the next qualifying fixed rate. National Grid continues delivering your power—only the supply rate changes.
Smart Enroll works with suppliers licensed by the Massachusetts Department of Public Utilities (MA DPU). You can cancel a pending request anytime at no charge. If you cancel a supplier contract early, that supplier's early termination fee (if any) applies.
Guides written specifically for customers in your area.
Most MA switchers paid MORE than Basic Service. Massachusetts electricity deregulation lets you choose suppliers—but compare carefully.
