Power plants planned and retiring in Massachusetts
Massachusetts plans 727 MW, 6% of its 12,754 MW in service (43rd of 51). 252 MW is being built or tested; storage leads at 672 MW.
Massachusetts: planned against running
Massachusetts planned, by fuel
- Solar 55 MW (8%)
- Storage 672 MW (92%)
Massachusetts operating, by fuel
- Solar 1,498 MW (12%)
- Storage 2,578 MW (20%)
- Wind 900 MW (7%)
- Natural gas 5,518 MW (43%)
- Hydro 268 MW (2%)
- Oil 1,723 MW (14%)
- Other 270 MW (2%)
When Massachusetts capacity arrives and leaves
MW due online and retiring in Massachusetts, 2026 to 2035: 5 rows
| Year | Massachusetts planned MW | Massachusetts retiring MW |
|---|---|---|
| 2026 | 41 | No data |
| 2027 | 518 | No data |
| 2028 | 168 | No data |
| 2029 | No data | 1 |
| 2035 | No data | 2 |
5 rows from EIA-860M.
CSVMassachusetts projects dated after 2035 or without a year: 0 MW.
Where the Massachusetts projects are
Massachusetts: 8 counties shaded, darker for more planned MW.
Filter Massachusetts planned projects
Filter the 31 planned project lines in Massachusetts.
727 MW across 31 project lines, 6% of the 12,754 MW operating in Massachusetts.
- Energizar BESS, Suffolk: 250 MW storage, online 2027
- Taft BESS, Worcester: 200 MW storage, online 2027
- Salt Cod BESS, Bristol: 168 MW storage, online 2028
- Town of Sharon Portfolio -Mt St Landfill, Norfolk: 6 MW storage, online 2027
- Borrego - Highland Ave, Bristol: 5 MW solar, online 2026
What the Massachusetts numbers say
Massachusetts runs 12,754 MW today. The planned list would add 727 MW (6%) while 4 MW (0%) of operating units carry a retirement date. Through 2035, Massachusetts has 727 MW due online and 3 MW due to retire there.
Massachusetts planned mix: 100% solar, storage and wind, 0% natural gas. Massachusetts stages: 252 MW under construction or in testing, 15 MW permits received, not started, 460 MW permits pending. Massachusetts retired 2,393 MW from 2021 to 2026 and has 794 MW on the canceled or postponed list.
Massachusetts capacity by fuel and status
| Massachusetts fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Massachusetts, MW |
|---|---|---|---|---|---|
| Solar | 1,498 | 55 | 1 | – | 14 |
| Storage | 2,578 | 672 | – | – | 10 |
| Wind | 900 | – | 2 | 4 | – |
| Natural gas | 5,518 | – | 1 | 1,781 | 620 |
| Hydro | 268 | – | – | – | 4 |
| Oil | 1,723 | – | – | 592 | 102 |
| Other | 270 | – | – | 16 | 44 |
| All fuels | 12,754 | 727 | 4 | 2,393 | 794 |
Massachusetts counties with the most planned capacity
| Massachusetts county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Suffolk County | 250 | 1 | Storage |
| Worcester County | 205 | 2 | Storage |
| Bristol County | 189 | 6 | Storage |
| Plymouth County | 52 | 16 | Solar |
| Norfolk County | 11 | 2 | Storage |
| Hampden County | 10 | 2 | Storage |
| Essex County | 5 | 1 | Storage |
| Middlesex County | 5 | 1 | Storage |
Largest planned projects in Massachusetts
| Massachusetts plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Energizar BESS | Suffolk | Storage | Permits pending | 2027 | 250 |
| Taft BESS | Worcester | Storage | Under construction or in testing | 2027 | 200 |
| Salt Cod BESS | Bristol | Storage | Permits pending | 2028 | 168 |
| Town of Sharon Portfolio -Mt St Landfill | Norfolk | Storage | Under construction or in testing | 2027 | 6 |
| Borrego - Highland Ave | Bristol | Solar | Under construction or in testing | 2026 | 5 |
| Borrego - Highland Ave | Bristol | Storage | Under construction or in testing | 2026 | 5 |
| Braley Hill North Solar | Plymouth | Storage | Permits pending | 2027 | 5 |
| Braley Hill North Solar | Plymouth | Solar | Permits pending | 2027 | 5 |
| Chicopee BESS | Hampden | Storage | Under construction or in testing | 2026 | 5 |
| Clems Way Solar | Bristol | Solar | Permits received, not started | 2027 | 5 |
Massachusetts against its neighbors
Massachusetts: planned MW equal 6% of operating. Bordering states: Connecticut plans 6% of what it runs (0 points above Massachusetts); New Hampshire plans 1% of what it runs (5 points below Massachusetts); New York plans 17% of what it runs (12 points above Massachusetts); Rhode Island plans 30% of what it runs (24 points above Massachusetts); Vermont plans 13% of what it runs (7 points above Massachusetts).
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Sources
EIA-860M inventory for Massachusetts: 1,011 operating generators, 31 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Massachusetts
Questions
Massachusetts: how much new power plant capacity is planned?
727 MW, 6% of the 12,754 MW Massachusetts runs. 252 MW is being built or tested in Massachusetts.
Massachusetts: what kind of power plants are planned?
Storage leads Massachusetts with 672 of 727 planned MW.
Massachusetts: which power plants are retiring?
4 MW of Massachusetts units have a retirement date, of which 0 MW is coal and 1 MW natural gas.
Will Massachusetts get all the planned plants?
Not necessarily. Massachusetts has 794 MW canceled or postponed, and 2,393 MW (natural gas the largest group) retired from 2021 to 2026.