Power plants planned and retiring in Maine
Maine plans 591 MW, 10% of its 5,948 MW in service (35th of 51). 103 MW is being built or tested; solar leads at 576 MW.
Maine: planned against running
Maine planned, by fuel
- Solar 576 MW (97%)
- Storage 15 MW (3%)
Maine operating, by fuel
- Solar 956 MW (16%)
- Storage 237 MW (4%)
- Wind 1,214 MW (20%)
- Natural gas 1,460 MW (25%)
- Hydro 726 MW (12%)
- Oil 845 MW (14%)
- Other 511 MW (9%)
When Maine capacity arrives and leaves
MW due online and retiring in Maine, 2026 to 2029: 4 rows
| Year | Maine planned MW | Maine retiring MW |
|---|---|---|
| 2026 | 103 | No data |
| 2027 | 51 | No data |
| 2028 | 119 | No data |
| 2029 | 318 | No data |
4 rows from EIA-860M.
CSVMaine projects dated after 2035 or without a year: 0 MW.
Where the Maine projects are
Maine: 8 counties shaded, darker for more planned MW.
Filter Maine planned projects
Filter the 14 planned project lines in Maine.
591 MW across 14 project lines, 10% of the 5,948 MW operating in Maine.
- Freedom Pine Solar, York: 250 MW solar, online 2029
- Three Rivers Solar Power, LLC, Hancock: 100 MW solar, online 2026
- Warren Meadow Solar Station, Knox: 74 MW solar, online 2028
- Crooked Trail Solar, Penobscot: 68 MW solar, online 2029
- Turner Meadow Solar Station, Androscoggin: 20 MW solar, online 2027
What the Maine numbers say
Maine runs 5,948 MW today. The planned list would add 591 MW (10%) while 5 MW (0%) of operating units carry a retirement date. Through 2035, Maine has 591 MW due online and 0 MW due to retire there.
Maine planned mix: 100% solar, storage and wind, 0% natural gas. Maine stages: 103 MW under construction or in testing, 143 MW permits received, not started, 27 MW permits pending, 318 MW early planning, no approvals started. Maine retired 228 MW from 2021 to 2026 and has 521 MW on the canceled or postponed list.
Maine capacity by fuel and status
| Maine fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Maine, MW |
|---|---|---|---|---|---|
| Solar | 956 | 576 | 5 | – | 122 |
| Storage | 237 | 15 | – | – | 2 |
| Wind | 1,214 | – | – | – | 298 |
| Natural gas | 1,460 | – | – | 223 | 55 |
| Hydro | 726 | – | – | 4 | 44 |
| Oil | 845 | – | – | – | – |
| Other | 511 | – | – | 2 | – |
| All fuels | 5,948 | 591 | 5 | 228 | 521 |
Maine counties with the most planned capacity
| Maine county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| York County | 271 | 3 | Solar |
| Hancock County | 102 | 2 | Solar |
| Knox County | 74 | 1 | Solar |
| Penobscot County | 68 | 1 | Solar |
| Androscoggin County | 30 | 3 | Solar |
| Cumberland County | 27 | 2 | Solar |
| Sagadahoc County | 17 | 1 | Solar |
| Waldo County | 1 | 1 | Solar |
Largest planned projects in Maine
| Maine plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Freedom Pine Solar | York | Solar | Early planning, no approvals started | 2029 | 250 |
| Three Rivers Solar Power, LLC | Hancock | Solar | Under construction or in testing | 2026 | 100 |
| Warren Meadow Solar Station | Knox | Solar | Permits received, not started | 2028 | 74 |
| Crooked Trail Solar | Penobscot | Solar | Early planning, no approvals started | 2029 | 68 |
| Turner Meadow Solar Station | Androscoggin | Solar | Permits received, not started | 2027 | 20 |
| Topsham Meadow Solar Station | Sagadahoc | Solar | Permits pending | 2028 | 17 |
| West Baldwin Solar Station | Cumberland | Solar | Permits received, not started | 2028 | 17 |
| Emery Meadow Solar Station | York | Solar | Permits received, not started | 2027 | 16 |
| South Portland ESS, LLC | Cumberland | Storage | Permits received, not started | 2027 | 10 |
| Auburn PV - BD Solar Auburn LLC | Androscoggin | Solar | Permits pending | 2028 | 5 |
Maine against its neighbors
Maine: planned MW equal 10% of operating. Bordering states: New Hampshire plans 1% of what it runs (9 points below Maine).
Download
Sources
EIA-860M inventory for Maine: 469 operating generators, 14 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Maine
Questions
Maine: how much new power plant capacity is planned?
591 MW, 10% of the 5,948 MW Maine runs. 103 MW is being built or tested in Maine.
Maine: what kind of power plants are planned?
Solar leads Maine with 576 of 591 planned MW.
Maine: which power plants are retiring?
5 MW of Maine units have a retirement date, of which 0 MW is coal and 0 MW natural gas.
Will Maine get all the planned plants?
Not necessarily. Maine has 521 MW canceled or postponed, and 228 MW (natural gas the largest group) retired from 2021 to 2026.