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Massachusetts Solar, Wind and Batteries

Utility-scale renewable and storage capacity in Massachusetts, as of August 2026 (EIA-860M). Rooftop solar is not included.

Solar
1.5 GW
558 plants
Wind
900 MW
21 plants
Battery storage
742 MW
133 plants
Hydroelectric
273 MW
31 plants

Capacity by type

Share of all 14.0 GW of operating capacity in Massachusetts

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TypeCapacityPlantsShare
Solar1.5 GW55810.7%
Wind900 MW216.4%
Battery storage742 MW1335.3%
Hydroelectric273 MW311.9%
Biomass346 MW122.5%

Largest solar farms

Operating capacity (AC)

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#PlantCapacity
1SJA Solar LLC-Solterra Monastery CSGWorcester14.7 MW
2Barrett PVWorcester11.9 MW
3Blodgett Solar CSGMiddlesex10.0 MW
4Old Middleboro Road SolarPlymouth9.5 MW
5Syncarpha Puddon I Hybrid CSGWorcester9.0 MW
6Syncarpha Puddon II Hybrid CSGWorcester9.0 MW
7Syncarpha Northbridge I Hybrid(CSG)Worcester9.0 MW
8Syncarpha Millbury Hybrid (CSG)Worcester8.8 MW
9Syncarpha Blandford Hybrid CSGHampden8.8 MW
10ASD Wallum Ma Solar LLC(CSG)Worcester8.8 MW
11Auburn Solar ProjectWorcester8.7 MW
12West Haydenville PJ Community SolarHampshire8.6 MW
13ZPD-PT Solar Project 2017-038 Hybrid LLCWorcester8.5 MW
14Happy Hollow CSG HybridWorcester8.3 MW
15Randall Solar Project HybridWorcester8.3 MW

Largest wind farms

Operating capacity

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#PlantCapacity
1Vineyard Wind 1Dukes800 MW
2New England Wind LLCBerkshire28.5 MW
3Berkshire Wind Power ProjectBerkshire19.6 MW
4Future Generation WindPlymouth8.0 MW
5Holiday Hill Community WindHampden5.0 MW
6MA Military Reservation Wind ProjectBarnstable4.5 MW
7Equity Industrial TurbinesEssex4.0 MW
8Mt Wachusett Community CollegeWorcester3.4 MW
9Cape Cod Air Force Station - 6 SWSBarnstable3.4 MW
10Dept of Corrections NCCI WindWorcester3.4 MW
11Princeton Wind FarmWorcester3.0 MW
12Fairhaven WindBristol3.0 MW
13631-56 Airport Owner, LLCBristol2.0 MW
14Notus Wind 1Barnstable1.7 MW
15Ipswich Wind TurbineEssex1.6 MW

Largest battery storage plants

Operating power capacity

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#PlantCapacity
1Medway GridNorfolk250 MW
2Cranberry Point Energy StoragePlymouth150 MW
3Outer Cape Community BatteryBarnstable25.0 MW
459 Federal Rd(CSG)Plymouth10.0 MW
5Huxley SolarHampden10.0 MW
6Beacon Solar, LLCHampshire10.0 MW
70 Hammond St CSGPlymouth9.8 MW
8Dunstable Solar 1, LLCMiddlesex9.0 MW
9Ryan Road Solar LLC Hybrid(CSG)Worcester8.6 MW
10Minuteman Energy StorageMiddlesex5.0 MW

New projects

Solar, wind and battery plants with generators that started in 2025 or 2026

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PlantTypeAddedYear
Vineyard Wind 1Wind800 MW2026
Medway GridBattery storage250 MW2026
Rose SolarSolar4.0 MW2026
Cranberry Point Energy StorageBattery storage150 MW2025
NL Ma - CopicutSolar8.0 MW2025
UplandSolar7.3 MW2025
Tja Ma Wakeby RoadSolar5.0 MW2025
Wakefield Ma Bess 1Battery storage5.0 MW2025
Kearsarge Riverpark I LLCBattery storage5.0 MW2025
Kearsarge Riverpark II LLCBattery storage5.0 MW2025
Southwick Solar, LLC Community SolarSolar4.7 MW2025
Ring RoadSolar4.0 MW2025
Milk Street Solar, LLCSolar3.7 MW2025
Pine Hill WestportSolar3.3 MW2025
Oak Leaf Solar XVII Community SolarSolar3.2 MW2025

Planned capacity

Planned or under construction, by expected year

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YearSolarWindBatteriesAll planned
202613.0 MW0.0 MW28.0 MW41.0 MW
202742.0 MW0.0 MW476 MW518 MW
20280.0 MW0.0 MW168 MW168 MW

Planned dates come from developers and often change. Capacity counts generators of 1 MW or more; smaller community solar and rooftop systems are not included.

Frequently asked questions

How much solar power does Massachusetts have?
Massachusetts has 1.5 GW of operating utility-scale solar at 558 plants. The largest is SJA Solar LLC-Solterra Monastery CSG at 14.7 MW.
Does Massachusetts have wind farms?
Yes. Massachusetts has 900 MW of wind capacity at 21 plants.
How much of Massachusetts's electricity comes from renewable sources?
Renewable plants produced 19.6% of the electricity generated in Massachusetts in 2023, according to EPA eGRID.

Source: U.S. Energy Information Administration, Form EIA-860M; U.S. EPA eGRID · Data for August 2026