Electric Consumer

Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EIA retail sales, EIA-860/923, EPA eGRID, Census ACS · How we got these numbers · Report an error

Massachusetts electric companies, rates and outages

EIA counts 20 utilities in Massachusetts, serving 3,372,904 accounts for a population of 6,992,395.

Former power plant of the American Printing Company, built 1922, Fall River, Massachusetts
APC Power Plant. Photo by Marcbela (Marc N. Belanger), CC0, Wikimedia Commons. Illustrative, not a listed utility's plant.

In 2025 Massachusetts homes paid 30.48 ¢/kWh: rank 3 of 51, 76.2% above the U.S. average of 17.30 ¢ (2024: 29.35 ¢).

Calculators for Massachusetts

How it compares

Massachusetts prices
Customer sector2024GapRank
Residential29.35 ¢/kWh+78.1% against the U.S.3 of 511 is highest
Commercial20.90 ¢/kWh+63.9% against the U.S.6 of 511 is highest
Industrial18.19 ¢/kWh+123.7% against the U.S.5 of 511 is highest

Electric companies in Massachusetts

Massachusetts home prices, 2024; lowest filled.

Massachusetts companies
CompanyHome accountsAverage priceReliabilityNet metering
Town of HudsonLowest price11,44813.39 ¢/kWh$76 a month at 570 kWhNo dataNo data
Town of Littleton6,73814.12 ¢/kWh$80 a month at 570 kWhNo data1.2 MW114 systems
Town of Shrewsbury15,71314.27 ¢/kWh$81 a month at 570 kWhNo data1.5 MW171 systems
Town of Mansfield9,39915.16 ¢/kWh$86 a month at 570 kWh10 minSAIDI, SAIFI 0.102.2 MW53 systems
City of Peabody22,54615.71 ¢/kWh$89 a month at 570 kWhNo data0.8 MW47 systems
Town of Braintree14,03915.79 ¢/kWh$90 a month at 570 kWh3 minSAIDI, SAIFI 0.041.5 MW52 systems
Town of Middleborough14,88415.84 ¢/kWh$90 a month at 570 kWhNo data1.0 MW123 systems
Town of Reading27,40515.86 ¢/kWh$90 a month at 570 kWh23 minSAIDI, SAIFI 0.275.4 MW336 systems
Town of North Attleborough12,60715.91 ¢/kWh$91 a month at 570 kWh6 minSAIDI, SAIFI 0.091.3 MW37 systems
City of Chicopee23,21816.16 ¢/kWh$92 a month at 570 kWhNo data1.9 MW56 systems
Town of Wellesley9,43716.20 ¢/kWh$92 a month at 570 kWhNo data2.2 MW179 systems
Town of Danvers11,59416.45 ¢/kWh$94 a month at 570 kWhNo data2.3 MW77 systems
City of Holyoke15,04016.58 ¢/kWh$94 a month at 570 kWh62 minSAIDI, SAIFI 1.260.1 MW15 systems
City of Westfield16,20017.59 ¢/kWh$100 a month at 570 kWh46 minSAIDI, SAIFI 1.00No data
City of Norwood13,60117.67 ¢/kWh$101 a month at 570 kWh25 minSAIDI, SAIFI 0.46No data
NSTAR Electric Company1,303,07619.92 ¢/kWh$113 a month at 570 kWh66 minSAIDI, SAIFI 0.641,550.8 MW84,262 systems
Nantucket Electric Co12,82320.68 ¢/kWh$118 a month at 570 kWh50 minSAIDI, SAIFI 0.334.7 MW320 systems
City of Taunton35,68421.46 ¢/kWh$122 a month at 570 kWh193 minSAIDI, SAIFI 2.3711.7 MW498 systems
Massachusetts Electric Co1,210,11323.07 ¢/kWh$131 a month at 570 kWh91 minSAIDI, SAIFI 0.841,407.9 MW106,902 systems
Fitchburg Gas & Elec Light Co26,29023.97 ¢/kWh$137 a month at 570 kWh65 minSAIDI, SAIFI 1.0537.6 MW3,591 systems

Massachusetts: 2025 and 2026

Massachusetts, data to July 2026.

Massachusetts 2025 average price
30.48 ¢/kWh+3.9% against 2024, U.S. +5.0%
Massachusetts 2025 rank
3 of 51same place as 2024
Massachusetts January to Jul 2026
30.14 ¢/kWh-0.3% on Jan-Jul 2025
Massachusetts Last 12 months
30.43 ¢/kWhto July 2026
Massachusetts July 2026
30.49 ¢/kWh+1.4% against July 2025
Massachusetts 2025 costliest month
Oct 31.37 ¢cheapest May 29.90 ¢, a 5% spread
Massachusetts Typical 2025 bill
$183 a monthtop Jul $240, low May $146

The Massachusetts residential price averaged 30.48 ¢/kWh in 2025, +3.9% on 2024: Massachusetts ran 1.1 points slower than the nation. From January to July 2026 the Massachusetts average is 30.14 ¢, -0.3% on 2025, 7.4 points below the U.S. change. Seasonality in Massachusetts: 2025 peaked in October at 31.37 ¢ and bottomed in May at 29.90 ¢. A typical residential account in Massachusetts paid about $2,194 for energy over 2025, from $146 in May to $240 in July; use per account ran 489 to 799 kWh a month.

Massachusetts price by month, 2024 to Jul 2026

Price by month, Massachusetts: 12 rows
Month202420252026 to Jul
Jan28.3530.0731.16
Feb29.3230.4230.46
Mar29.7030.1830.21
Apr29.5130.6329.45
May28.7729.9028.82
Jun28.2730.3329.61
Jul28.9230.0730.49
Aug29.5630.61No data
Sep29.2630.41No data
Oct29.2531.37No data
Nov30.2231.22No data
Dec31.1730.88No data

12 rows from EIA retail sales.

CSV

What a typical Massachusetts account paid each month

Massachusetts: use per account times price, energy only.

Typical bill by month, Massachusetts: 12 rows
Month20252026 to Jul
Jan208223
Feb203215
Mar173179
Apr162144
May146137
Jun171171
Jul240225
Aug219No data
Sep166No data
Oct155No data
Nov152No data
Dec198No data

12 rows from EIA retail sales.

CSV

What Massachusetts power is made of

In plain words. Natural gas is the biggest source in Massachusetts (77%), and the power made there is about as clean as the U.S. average per kWh. Plants with 22 MW are planned to retire by 2030. New plants with 822 MW are under construction.

In 2025 Massachusetts plants of 1 MW or more made 22.9 TWh. The biggest sources: natural gas 77.3%, utility-scale solar 9.2%, wood, biomass, geothermal and waste 3.8%. For comparison, natural gas makes 40.9% of U.S. generation. Wind, solar and hydro together: 13.4% (22.6% for the U.S.). Massachusetts plants only; imports and rooftop solar are not counted.

Massachusetts, share of net generation, %

  • Coal
  • Natural gas 77.3
  • Nuclear
  • Hydro (conventional) 3.3
  • Wind 0.8
  • Utility-scale solar 9.2
  • Petroleum 1.9
  • Wood, biomass, geothermal, waste 3.8
  • Other 3.6

Fuel groups: prices guide.

Massachusetts, share of net generation and operating capacity: 7 rows
SourceMassachusetts share of generation, %U.S. share, %Massachusetts generation, TWhMassachusetts capacity, MW
Natural gas77.340.917.706,566
Hydro (conventional)3.35.50.762,107
Wind0.810.40.19100
Utility-scale solar9.26.82.121,503
Petroleum1.90.40.431,878
Wood, biomass, geothermal, waste3.81.40.87346
Other3.60.40.830

EIA-923 and EIA-860 for Massachusetts, 2025 data, pulled 2 Oct 2026.

CSV

Massachusetts plant pipeline

Massachusetts, megawatts: 6 rows
Massachusetts plantsMW
Operating, utility-scale12,500
Battery storage492
Retiring 2026 to 203022
Retiring after 20303
Under construction822
Planned37

EIA-860 generators in Massachusetts, 2025 data.

CSV

Massachusetts carbon per kWh

Massachusetts plants emitted 822 lb of CO₂ per MWh in 2023 (0.373 kg per kWh), against 767 lb for the U.S. An average Massachusetts home using 574 kWh a month accounts for about 214 kg of CO₂ a month at that rate. The rate is for Massachusetts plants, not your supplier.

state and national values: 4 rows
MeasureMassachusettsU.S.
CO₂, lb per MWh822.4767.2
CO₂, kg per kWh0.3730.348
NOx, lb per MWh0.5930.452
SO2, lb per MWh0.2780.359

EPA eGRID2023 for Massachusetts, pulled 2 Oct 2026.

CSV

Who delivers and who sells in Massachusetts

55.9% of Massachusetts home accounts bought energy from a supplier other than the wires company in 2024 (37 suppliers reported), 2,924,535 accounts in all. Plan prices are not shown here: choosing a supplier.

Massachusetts, largest wires companies: 4 rows
Massachusetts wires companyDelivery-only home accounts
NSTAR Electric Company919,703
Massachusetts Electric Co683,676
Fitchburg Gas & Elec Light Co20,122
Nantucket Electric Co10,768

EIA-861 wires companies in Massachusetts, 2024 data.

CSV
Massachusetts, largest suppliers by home accounts: 5 rows
Massachusetts supplierHome accounts
Direct Energy Services498,718
Constellation NewEnergy, Inc291,382
Dynegy Energy Services, LLC189,517
First Point Power, LLC162,849
NextEra Energy Services, LLC145,990

EIA-861 suppliers in Massachusetts, 2024 data.

CSV

Massachusetts weather

A normal year in Massachusetts brings 6,635 heating and 383 cooling degree-days (1991 to 2020). 2025 had 6,063 heating (9% below normal) and 580 cooling (51% above normal).

Massachusetts degree-days by year

Heating and cooling degree-days, Massachusetts, 2015 to 2025: 11 rows
Massachusetts yearHeating (HDD)Cooling (CDD)Normal HDDNormal CDD
201562685906635383
201657116666635383
201757964776635383
201860617126635383
201962455776635383
202055357026635383
202155156676635383
202257087086635383
202352845626635383
202454586766635383
202560635806635383

NOAA nClimDiv degree-days for Massachusetts, 2015 to 2025, pulled 2 Oct 2026.

CSV

Massachusetts meters and time-of-use rates

10.4% of Massachusetts home meters are advanced (AMI) meters: 322,435 of 3,091,348. 1 of 17 reporting utilities offer a home time-of-use rate, and 5,685 home accounts are enrolled in dynamic pricing programs.

EIA-861 meters in Massachusetts, data year 2024, pulled 2 Oct 2026: homes.

Flood claims and flood insurance in Massachusetts

Massachusetts: 3,935 NFIP flood claims with a loss date in 2015 to 2025, $92.5M paid, median paid claim $13,195; 22nd of 55 states and territories by dollars paid. The peak year was 2018 with 2,047 claims. FEMA counts 2.0% of Massachusetts residential structures as insured, 14th of 51, and the policy file shows 57,818 NFIP policies in force on 8 Sep 2026. Floods damage substations and lines, and in Massachusetts this is claims history, not an outage count.

Massachusetts counties with the most NFIP flood claims
Top counties in MassachusettsClaims 2015-2025PaidClaims per 1,000 homes
Plymouth County1,142$29.8M6.9
Essex County796$21.0M4.1
Barnstable County587$15.2M4.3
Norfolk County473$8.1M2.3
Suffolk County284$5.7M2.1

Massachusetts: flood claims by state, flood claims by county. 3,935 Massachusetts claims as of 8 Sep 2026, OpenFEMA NFIP; counts under 5 hidden.

Massachusetts charts

Price by sector, Massachusetts

Home 29.35, business 20.90, industry 18.19 ¢ in 2024.

Massachusetts price by sector 2015-2024, 2015 to 2024: 10 rows
YearResidentialCommercialIndustrialGap to U.S. residential
201519.8315.7913.54+7.18
201619.0015.6013.38+6.45
201720.0615.9313.88+7.17
201821.6117.1714.89+8.74
201921.9216.8014.76+8.91
202021.9716.0314.51+8.82
202122.8916.9915.18+9.23
202225.9718.6717.06+10.93
202329.6119.6217.88+13.61
202429.3520.9018.19+12.87

10 rows from EIA retail sales.

CSV

Largest utilities, SAIDI

Median of 12 reporters here: 48.3 minutes.

min

  • NSTAR Electric Company66.1
  • Massachusetts Electric Co90.7
  • City of Taunton193.0
  • Fitchburg Gas & Elec Light Co64.6
  • Town of Reading23.2
  • City of Westfield46.1
  • City of Holyoke61.6
  • Town of Braintree2.5
  • U.S. median99.5

Massachusetts, SAIDI of the largest Massachusetts utilities: EIA-861 survey.

CSV

Median SAIDI by year, 2015-2024

21 minutes in 2015, 48 in 2024.

Median SAIDI by year, Massachusetts, 2015 to 2024: 10 rows
YearMassachusetts medianGap to U.S. median reporter
201521-80
201623-79
201744-51
201834-67
201951-47
202057-40
202166-30
202247-56
202359-40
202448-51

10 rows from EIA-861 survey.

CSV

Who serves each county

Massachusetts counties shaded by utilities listing them; the table shows the top twelve.

Massachusetts counties by number of electric utilitiesBristolMiddlesexNorfolkHampdenFranklinSuffolkBarnstableHampshireBerkshireWorcesterEssexPlymouthNantucketDukes

1 utility 2 3 4 or more

Massachusetts counties: first 12 of 14 rows
CountyUtilitiesNames
Middlesex6Fitchburg Gas & Elec Light Co; Massachusetts Electric Co; NSTAR Electric Company; Town of Hudson; Town of Littleton; Town of Reading
Bristol5City of Taunton; Massachusetts Electric Co; NSTAR Electric Company; Town of Mansfield; Town of North Attleborough
Hampden5City of Chicopee; City of Holyoke; City of Westfield; Massachusetts Electric Co; NSTAR Electric Company
Norfolk5City of Norwood; Massachusetts Electric Co; NSTAR Electric Company; Town of Braintree; Town of Wellesley
Essex3City of Peabody; Massachusetts Electric Co; Town of Danvers
Plymouth3Massachusetts Electric Co; NSTAR Electric Company; Town of Middleborough
Worcester3Fitchburg Gas & Elec Light Co; Massachusetts Electric Co; Town of Shrewsbury
Barnstable2Massachusetts Electric Co; NSTAR Electric Company
Berkshire2Massachusetts Electric Co; NSTAR Electric Company
Franklin2Massachusetts Electric Co; NSTAR Electric Company
Hampshire2Massachusetts Electric Co; NSTAR Electric Company
Suffolk2Massachusetts Electric Co; NSTAR Electric Company

14 rows from EIA-861 Service Territory, Census 2023 county outlines.

CSV

Analyst note

Massachusetts residential power was 3rd highest of 51 in 2015 at 19.83 ¢ and is 3rd in 2024 at 29.35 ¢, so the state held the same place. The U.S. figure went 12.65 to 16.48 ¢ while Massachusetts went +48.0%. The biggest annual move was 2023 at +14.0%; the latest year, 2024, came in at -0.9% against +3.0% for the U.S. Business customers paid 15.79 ¢ in 2015 and 20.90 ¢ in 2024, a gap to homes of -4.04 ¢ then and -8.45 ¢ now; industry went from 13.54 to 18.19 ¢ (+34.3%). Reliability worsened at the 6 Massachusetts utilities that report in both years: their median SAIDI went from 21 minutes in 2015 to 42 in 2024, +104%, against a U.S. median reporter of 99. NSTAR Electric Company is the largest by accounts with 1,526,558, 45.3% of the 3,372,904 accounts in Massachusetts, and the top three hold 87.2%. Territory overlaps: 12 of 14 counties are listed by two or more utilities, led by Middlesex with 6.

Massachusetts ranks 3rd of 51 on residential price (29.35 ¢), among the costliest, and 78.1% over the national average. Since 2015 the residential price moved +48.0% against +30.3% nationally, so Massachusetts has pulled away from the national trend by 17.7 points.

Businesses pay 8.45 ¢ less than households here (-28.8%); business is under home price in 51 of 51. SAIDI for the typical reporter is 48.3 minutes across 12 utilities, under the national 99.5. Three utilities serve 90.7% of accounts.

By revenue, Massachusetts electricity splits 49.7% residential, 41.6% commercial and 8.7% industrial; by kWh the split is 40.7%, 47.8% and 11.5%. Residential accounts are the largest revenue source here. Home accounts are 86.7% of 3,372,902 accounts and use 570 kWh a month, a commercial account 4,469 and an industrial one 45,440.

Facts

Residents (ACS 2023)
6,992,3952,762,070 households
Electric accounts
3,372,904482 per 1,000 residents
Residential price
29.35 ¢/kWh+12.87 ¢ against the U.S.
Commercial price
20.90 ¢/kWh+8.15 ¢ against the U.S.
Industrial price
18.19 ¢/kWh+10.06 ¢ against the U.S.
Residential since 2015
+48.0%+17.7 points vs U.S.
Retail sales
49.4 TWh7,067 kWh a resident
Utilities listed
2016 municipal, 4 investor owned
Median SAIDI
48.3 min12 utilities, 0.49x U.S.
Net-metered capacity
3,034 MW196,833 installations
Top three utilities
90.7%of utility accounts
Business minus home
-8.45 ¢-28.8% of the home price
Counties with 2+ utilities
12 of 14most: Middlesex, 6 utilities

Data tables

Massachusetts: price by year

YearHomeBusinessIndustryHome vs U.S.
201519.8315.7913.54+7.18
201619.0015.6013.38+6.45
201720.0615.9313.88+7.17
201821.6117.1714.89+8.74
201921.9216.8014.76+8.91
202021.9716.0314.51+8.82
202122.8916.9915.18+9.23
202225.9718.6717.06+10.93
202329.6119.6217.88+13.61
202429.3520.9018.19+12.87

Questions on Massachusetts

How many cents per kWh do Massachusetts homes pay?

29.35 cents in 2024, which is +12.87 cents against the U.S. figure.

Did Massachusetts electricity get more expensive after 2015?

It went from 19.83 to 29.35 cents, +48.0% in total, +17.7 points against the U.S.

How many utilities does EIA list for Massachusetts?

20 utilities have Massachusetts as their largest state, and 12 of them report SAIDI.

How much solar net metering exists in Massachusetts?

3,034 MW over 196,833 installations.

How many electric accounts does Massachusetts have per 1,000 residents?

482: 3,372,904 accounts for 6,992,395 residents.

Do Massachusetts businesses pay more than households?

Businesses pay 20.90 ¢ and homes 29.35 ¢, a difference of -8.45 ¢.

What did Massachusetts residential electricity cost in 2025?

Massachusetts averaged 30.48 cents per kWh, +3.9% against 29.35 in 2024, and 3 of 51 among states.

Are Massachusetts residential electricity prices rising in 2026?

Massachusetts is -7.4 points against the U.S.: 30.14 cents from January to July 2026, -0.3% on 2025.

When in 2025 did Massachusetts residential power cost most, October or May?

October at 31.37 cents in Massachusetts; May was the lowest at 29.90, a 5% spread.

Does Massachusetts residential power cost more than the national average in 2026?

11.92 cents above the national average; Massachusetts 30.14 cents over January to July 2026, -0.3% on 2025.

States with a similar home price

Closest to Massachusetts at 29.35 ¢/kWh, by 2024 average home price.

More on Massachusetts

How Massachusetts ranks and compares

Massachusetts is 49th cheapest of 51 on price (30.48 ¢); 10th of 44 on outage minutes (77 min); 35th cleanest grid (822 lb CO2 per MWh); 27th highest income burden (2.17%).

All rankings, price, income and outages explorer, compare two states.

Help paying the bill in Massachusetts

Massachusetts has $163.3 million in federal energy-assistance money for FY2026, shutoff rules and phone lines. Open the Massachusetts help page.

Counties in Massachusetts ranked: highest and lowest energy burden, storm reports and old homes, county by county.

More on Massachusetts

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In 2025 Massachusetts homes paid 30.48 ¢/kWh: rank 3 of 51, 76.2% above the U.S. average of 17.30 ¢ (2024: 29.35 ¢).

Cite this page

Underlying data are U.S. government works (EIA, Census Bureau). Our tables and charts: CC BY 4.0, credit Electric Consumer. The access date fills in when you open this page.

APA

Electric Consumer. (2026). Massachusetts electricity rates 2025: price per kWh, utilities and outages. Data as of 2 October 2026. Retrieved [date accessed], from https://electricconsumer.org/states/massachusetts.html

MLA

Electric Consumer. “Massachusetts electricity rates 2025: price per kWh, utilities and outages.” Electric Consumer, data as of 2 October 2026, https://electricconsumer.org/states/massachusetts.html. Accessed [date accessed].

Chicago

Electric Consumer. “Massachusetts electricity rates 2025: price per kWh, utilities and outages.” Data as of 2 October 2026. Accessed [date accessed]. https://electricconsumer.org/states/massachusetts.html.

BibTeX

@misc{usedata_states_massachusetts,
  author = "Electric Consumer",
  title = {Massachusetts electricity rates 2025: price per kWh, utilities and outages},
  year = {2026},
  url = {https://electricconsumer.org/states/massachusetts.html},
  note = {Data as of 2 October 2026. Accessed [date accessed]}
}
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