Power plants planned and retiring in Alaska
Alaska plans 29 MW, 1% of its 2,857 MW in service (48th of 51). 0 MW is being built or tested; hydro leads at 29 MW.
Alaska: planned against running
Alaska planned, by fuel
- Hydro 29 MW (100%)
Alaska operating, by fuel
- Solar 8 MW (0%)
- Storage 134 MW (5%)
- Wind 58 MW (2%)
- Natural gas 1,258 MW (44%)
- Coal 173 MW (6%)
- Hydro 477 MW (17%)
- Oil 744 MW (26%)
- Other 7 MW (0%)
When Alaska capacity arrives and leaves
MW due online and retiring in Alaska, 2027 to 2028: 2 rows
| Year | Alaska planned MW | Alaska retiring MW |
|---|---|---|
| 2027 | 10 | No data |
| 2028 | 20 | No data |
2 rows from EIA-860M.
CSVAlaska projects dated after 2035 or without a year: 0 MW.
Where the Alaska projects are
Alaska: 2 counties shaded, darker for more planned MW.
Filter Alaska planned projects
Filter the 2 planned project lines in Alaska.
29 MW across 2 project lines, 1% of the 2,857 MW operating in Alaska.
- Sweetheart Lake Hydroelectric Facility, Juneau: 20 MW hydro, online 2028
- Mahoney Lake Hydroelectric, Ketchikan Gateway: 10 MW hydro, online 2027
What the Alaska numbers say
Alaska runs 2,857 MW today. The planned list would add 29 MW (1%) while 1 MW (0%) of operating units carry a retirement date. Through 2035, Alaska has 29 MW due online and 0 MW due to retire there.
Alaska planned mix: 0% solar, storage and wind, 0% natural gas. Alaska stages: 20 MW permits pending, 10 MW early planning, no approvals started. Alaska retired 51 MW from 2021 to 2026 and has 58 MW on the canceled or postponed list.
Alaska capacity by fuel and status
| Alaska fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Alaska, MW |
|---|---|---|---|---|---|
| Solar | 8 | – | 1 | – | – |
| Storage | 134 | – | – | – | – |
| Wind | 58 | – | – | 2 | 2 |
| Natural gas | 1,258 | – | – | 16 | 50 |
| Coal | 173 | – | – | 1 | 2 |
| Hydro | 477 | 29 | – | 2 | – |
| Oil | 744 | – | 0 | 31 | 4 |
| Other | 7 | – | – | – | – |
| All fuels | 2,857 | 29 | 1 | 51 | 58 |
Alaska counties with the most planned capacity
| Alaska county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Juneau City and Borough | 20 | 3 | Hydro |
| Ketchikan Gateway Borough | 10 | 1 | Hydro |
Largest planned projects in Alaska
| Alaska plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Sweetheart Lake Hydroelectric Facility | Juneau | Hydro | Permits pending | 2028 | 20 |
| Mahoney Lake Hydroelectric | Ketchikan Gateway | Hydro | Early planning, no approvals started | 2027 | 10 |
Alaska against its neighbors
Alaska: planned MW equal 1% of operating. Nearest in the ranking: Florida plans 3% of what it runs (2 points above Alaska); Iowa plans 4% of what it runs (3 points above Alaska); New Hampshire plans 1% of what it runs (0 points below Alaska); New Jersey plans 0% of what it runs (1 points below Alaska).
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Sources
EIA-860M inventory for Alaska: 543 operating generators, 2 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Alaska
Questions
Alaska: how much new power plant capacity is planned?
29 MW, 1% of the 2,857 MW Alaska runs. 0 MW is being built or tested in Alaska.
Alaska: what kind of power plants are planned?
Hydro leads Alaska with 29 of 29 planned MW.
Alaska: which power plants are retiring?
1 MW of Alaska units have a retirement date, of which 0 MW is coal and 0 MW natural gas.
Will Alaska get all the planned plants?
Not necessarily. Alaska has 58 MW canceled or postponed, and 51 MW (oil the largest group) retired from 2021 to 2026.