National Grid Massachusetts electric rates
Updated October 7, 2026 · Source: EIA Form 861 (2024), Aug 2026 Basic Service supply rate
Investor-owned utility serving 1,210,113 homes in Massachusetts.
Your rate
Massachusetts is a retail-choice state: this utility's rate case sets the delivery part of your bill. The supply part comes from your chosen supplier or the default service rate.
Estimate your bill
It's on your bill, usually near the top. Starting at 547 kWh, the average for National Grid Massachusetts homes.
This is an estimate. Tariff: $10.00 fixed + 40.0¢/kWh effective August 1, 2026 (source). National Grid MA Rate R-1. Delivery (Aug 1 2026): customer charge $10.00/mo; distribution 10.924c + transmission 5.464c + transition -0.029c + energy efficiency 2.713c + renewables 0.050c + net metering recovery 2.451c + distributed solar 0.935c + EV 0.315c + ESMP 0.006c = 22.83 c/kWh. Basic Service residential fixed price 17.185 c/kWh for Aug 1 2026-Jan 31 2027 (resitable.pdf). Sum 40.01c. Excludes taxes. Your bill also includes taxes and fuel adjustments that change month to month.
Rate cases
| Docket | Status | Filed | Requested | Approved | Effective |
|---|---|---|---|---|---|
| Aug 2026 Basic Service supply rate | Approved | July 1, 2026 | 11.8% | August 1, 2026 |
Aug 2026 Basic Service supply rate: No electric base distribution rate case was filed in 2025-2026 (last was DPU 23-150, effective Oct 2024; DPU 26-50 filed Jan 2026 is a gas case). The DPU-approved residential Basic Service supply rate rose from 15.37 to 17.19 cents/kWh (11.8%) for August 1, 2026 through January 31, 2027, about $18.13/month at 1,000 kWh, driven by higher ISO-NE capacity and wholesale costs. Filing date is approximate (supply rates are filed roughly a month before the period). Source
Rate history
National Grid Massachusetts's average rate is up 26% since 2020, versus +28% for the U.S. average.
Average residential revenue per kWh, EIA-861. Includes delivery and, where the utility sells it, supply.
Rebates for heat pumps, batteries and EV chargers
We haven't found utility-level rebates for National Grid Massachusetts yet. Check Massachusetts programs or read what's left after the federal credits ended.
About National Grid Massachusetts
- Legal name
- Massachusetts Electric Co (National Grid)
- Ownership
- Investor Owned
- Homes served
- 1,210,113 residential customers (2024)
- Grid operator
- ISNE
- Retail choice
- Yes — you can pick a supplier for the energy portion
- Data
- EIA-861 2024, released October 7, 2026; rate cases checked October 7, 2026
Other utilities in Massachusetts
- Eversource Massachusetts 19.92¢
- City of Taunton 21.46¢
- Town of Reading 15.86¢
- Fitchburg Gas & Elec Light 23.97¢
- City of Chicopee 16.16¢
- City of Peabody 15.71¢
- City of Westfield 17.59¢
- Town of Shrewsbury 14.27¢