Massachusetts Electric Co. electricity rates
Investor-owned utility · Massachusetts · NPCC region · ISONE
Massachusetts Electric Co. is a for-profit, investor-owned utility regulated by the state utility commission, serving 438,150 homes in Massachusetts. Its residential customers pay an average of 34.18¢/kWh including fixed and delivery charges, 90% more than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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Massachusetts Electric Co. bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $170.90 | $226.75 |
| 1,000 kWh | $341.80 | $443.50 |
| 1,500 kWh | $512.70 | $660.25 |
| 2,000 kWh | $683.60 | $877.00 |
*R-1 Residential (effective 2025-03-01, $10.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Massachusetts Electric Co. residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| R-1 Residential | 2025-03-01 | $10.00 | 43.35¢ |
| R-4 Residential Time-of-Use Farm Discounttime-of-use | 2019-05-01 | $18.00 | 17.3¢ (12am–8am, 9pm–12am) · 26.2¢ (8am–9pm) — summer weekdays |
| R-4 Residential Time-of-Usetime-of-use | 2019-05-01 | $20.00 | 8.4¢ (12am–8am, 9pm–12am) · 18.3¢ (8am–9pm) — summer weekdays |
| R-4 Residential Time-of-Use Farm Discounttime-of-use | 2019-05-01 | $18.00 | 7.5¢ (12am–8am, 9pm–12am) · 16.5¢ (8am–9pm) — summer weekdays |
| R-4 Residential Time-of-Usetime-of-use | 2019-05-01 | $20.00 | 19.2¢ (12am–8am, 9pm–12am) · 29.1¢ (8am–9pm) — summer weekdays |
| R-1 Residential | 2025-03-01 | $10.00 | 28.68¢ |
| R-2 Low Income Residential Farm Discount | 2025-02-01 | $9.00 | 25.81¢ |
| R-2 Low Income Residential Farm Discount | 2025-02-01 | $9.00 | 40.48¢ |
| R-2 Low Income Residential | 2025-02-01 | $6.70 | 34.21¢ |
| R-2 Low Income Residential | 2025-02-01 | $6.70 | 19.54¢ |
| R-1 Residential Farm Discount | 2025-02-01 | $9.00 | 25.81¢ |
| R-1 Residential Farm Discount | 2025-02-01 | $9.00 | 40.48¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Massachusetts Electric Co. rate history
2015–2025: +64% change in the average residential rate (20.50¢ → 33.66¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Massachusetts Electric Co. | Massachusetts avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 133 | 121 | 266 |
| Outages per customer (SAIFI) | 1.00 | 0.92 | 1.34 |
| Average restoration time (CAIDI) | 2 hr 12 min | — | — |
| Outage minutes excluding major storms | 91 | 74 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Massachusetts Electric Co.'s counties, customers averaged 2 hr 46 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Worcester | 403 | 99 | 12,731 | 2025-05-03 |
| Barnstable | 252 | 72 | 24,294 | 2025-05-31 |
| Essex | 248 | 89 | 8,491 | 2025-04-08 |
| Middlesex | 238 | 64 | 19,321 | 2025-12-19 |
| Hampshire | 208 | 54 | 8,149 | 2025-05-04 |
| Norfolk | 188 | 46 | 29,004 | 2025-12-19 |
| Franklin | 178 | 42 | 10,330 | 2025-01-17 |
| Berkshire | 175 | 47 | 10,881 | 2025-09-06 |
| Hampden | 165 | 36 | 20,087 | 2025-07-27 |
| Plymouth | 142 | 44 | 47,121 | 2025-07-04 |
| Bristol | 135 | 47 | 38,360 | 2025-07-04 |
| Suffolk | 53 | 11 | 27,817 | 2025-05-14 |
Massachusetts Electric Co. service area
Massachusetts Electric Co. serves 12 counties in Massachusetts and 441 ZIP codes.
Barnstable, Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester
Cities: Boston, Worcester, Springfield, Lowell, Brockton, Fall River, Quincy, Lynn, Somerville, Lawrence, Framingham, Framingham Center, Haverhill, Malden, Medford, Taunton, North Chicopee, Weymouth, Revere, Peabody, Methuen, South Peabody, Everett, Attleboro, Pittsfield, East Boston, Salem, Arlington, Leominster, Beverly, Fitchburg, Beverly Cove, Billerica, Amherst, Marlborough, Chelsea, Braintree, Chelmsford, Shrewsbury, Randolph
Programs, smart meters & solar
| Smart meters (AMI) for homes | 29% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 114,598 |
| Home batteries paired with solar | 112 |
| Residential efficiency incentives paid (2025) | $171,959 |
| Residential energy saved by programs | 49,311 MWh |
Massachusetts Electric Co. at a glance
| Ownership | Investor-owned utility |
| Services | Distribution |
| Commercial rate | 25.62¢/kWh |
| Industrial rate | 22.85¢/kWh |
| Retail revenue (2025) | $1,121,076,700 |
| Electricity sold (2025) | 3,578,952 MWh |
| Peak demand | 4,869 MW summer · 3,475 MW winter |
| Line losses | 3.9% |
| Balancing authority | ISNE |
| EIA utility ID | 11804 |
Other utilities in Massachusetts
Frequently asked questions
What is Massachusetts Electric Co.'s electricity rate?
Massachusetts Electric Co. residential customers pay an average of 34.18¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 12% above the Massachusetts average of 30.43¢ and 90% above the U.S. average.
What is the average Massachusetts Electric Co. electric bill?
About $166 a month. The average Massachusetts Electric Co. home uses 487 kWh a month. At 1,000 kWh the bill would be about $342.
How many customers does Massachusetts Electric Co. have?
Massachusetts Electric Co. serves 438,150 residential customers and 1,399,921 customers in total in Massachusetts, across 12 counties.
How reliable is Massachusetts Electric Co.?
In 2025, the average Massachusetts Electric Co. customer was without power for 2 hr 13 min (SAIDI) over 1.00 interruptions (SAIFI), including major storms. Excluding major event days it was 91 min. The Massachusetts average was 2 hr 1 min and the U.S. average 4 hr 26 min.
Does Massachusetts Electric Co. offer time-of-use rates?
Yes. The OpenEI rate database lists 4 time-of-use residential plans, including R-4 Residential Time-of-Use Farm Discount. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Massachusetts Electric Co. offer net metering for solar?
Massachusetts Electric Co. had 114,598 residential net-metered customers in 2025 with 763.5 MW of capacity and 112 solar-paired batteries. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Massachusetts Electric Co. before making decisions.