Power plants planned and retiring in Connecticut
Connecticut plans 625 MW, 6% of its 10,128 MW in service (40th of 51). 97 MW is being built or tested; storage leads at 340 MW.
Connecticut: planned against running
Connecticut planned, by fuel
- Solar 285 MW (46%)
- Storage 340 MW (54%)
Connecticut operating, by fuel
- Solar 501 MW (5%)
- Storage 31 MW (0%)
- Wind 5 MW (0%)
- Natural gas 5,017 MW (50%)
- Nuclear 2,108 MW (21%)
- Hydro 122 MW (1%)
- Oil 2,204 MW (22%)
- Other 140 MW (1%)
When Connecticut capacity arrives and leaves
MW due online and retiring in Connecticut, 2026 to 2035: 6 rows
| Year | Connecticut planned MW | Connecticut retiring MW |
|---|---|---|
| 2026 | 2 | No data |
| 2027 | 378 | 6 |
| 2028 | 200 | No data |
| 2029 | No data | 1 |
| 2031 | 45 | No data |
| 2035 | No data | 5 |
6 rows from EIA-860M.
CSVConnecticut projects dated after 2035 or without a year: 0 MW.
Filter Connecticut planned projects
Filter the 9 planned project lines in Connecticut.
625 MW across 9 project lines, 6% of the 10,128 MW operating in Connecticut.
- Elevate Middletown, Middlesex: 275 MW storage, online 2027
- Broadleaf Solar, Hartford: 200 MW solar, online 2028
- Pure Hedge LLC, Windham: 70 MW solar, online 2027
- KCE CT 1, LLC, Windham: 45 MW storage, online 2031
- Pure Hedge LLC, Windham: 20 MW storage, online 2027
What the Connecticut numbers say
Connecticut runs 10,128 MW today. The planned list would add 625 MW (6%) while 23 MW (0%) of operating units carry a retirement date. Through 2035, Connecticut has 625 MW due online and 13 MW due to retire there.
Connecticut planned mix: 100% solar, storage and wind, 0% natural gas. Connecticut stages: 97 MW under construction or in testing, 204 MW permits pending, 324 MW early planning, no approvals started. Connecticut retired 561 MW from 2021 to 2026 and has 765 MW on the canceled or postponed list.
Connecticut capacity by fuel and status
| Connecticut fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Connecticut, MW |
|---|---|---|---|---|---|
| Solar | 501 | 285 | 2 | – | 48 |
| Storage | 31 | 340 | – | – | – |
| Wind | 5 | – | – | – | – |
| Natural gas | 5,017 | – | 21 | 58 | 678 |
| Coal | – | – | – | 258 | – |
| Nuclear | 2,108 | – | – | – | – |
| Hydro | 122 | – | – | – | – |
| Oil | 2,204 | – | – | 186 | 39 |
| Other | 140 | – | – | 58 | – |
| All fuels | 10,128 | 625 | 23 | 561 | 765 |
Connecticut counties with the most planned capacity
| Connecticut county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Middlesex | 275 | 1 | Storage |
| Hartford | 206 | 3 | Solar |
| Windham | 139 | 4 | Solar |
| New London | 5 | 1 | Solar |
Largest planned projects in Connecticut
| Connecticut plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Elevate Middletown | Middlesex | Storage | Early planning, no approvals started | 2027 | 275 |
| Broadleaf Solar | Hartford | Solar | Permits pending | 2028 | 200 |
| Pure Hedge LLC | Windham | Solar | Under construction or in testing | 2027 | 70 |
| KCE CT 1, LLC | Windham | Storage | Early planning, no approvals started | 2031 | 45 |
| Pure Hedge LLC | Windham | Storage | Under construction or in testing | 2027 | 20 |
| Groton Flanders Road Landfill | New London | Solar | Under construction or in testing | 2027 | 5 |
| CT Airport Authority Solar One | Hartford | Solar | Early planning, no approvals started | 2027 | 4 |
| Putnam Meadow Solar Station | Windham | Solar | Permits pending | 2027 | 4 |
| Windsor Locks | Hartford | Solar | Under construction or in testing | 2026 | 2 |
Connecticut against its neighbors
Connecticut: planned MW equal 6% of operating. Bordering states: Massachusetts plans 6% of what it runs (0 points below Connecticut); New York plans 17% of what it runs (11 points above Connecticut); Rhode Island plans 30% of what it runs (24 points above Connecticut).
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Sources
EIA-860M inventory for Connecticut: 317 operating generators, 9 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Connecticut
Questions
Connecticut: how much new power plant capacity is planned?
625 MW, 6% of the 10,128 MW Connecticut runs. 97 MW is being built or tested in Connecticut.
Connecticut: what kind of power plants are planned?
Storage leads Connecticut with 340 of 625 planned MW.
Connecticut: which power plants are retiring?
23 MW of Connecticut units have a retirement date, of which 0 MW is coal and 21 MW natural gas.
Will Connecticut get all the planned plants?
Not necessarily. Connecticut has 765 MW canceled or postponed, and 561 MW (coal the largest group) retired from 2021 to 2026.