81st largest plant in Alaska · 8379th nationally
Annex Creek is a hydroelectric power plant in Alaska with a nameplate capacity of 4.0 MW. It generates roughly 8.4k MWh per year — enough to power about 798 average U.S. homes.
Its capacity factor of 24% reflects intermittent or peaking operation.
| Plant Name | Annex Creek |
|---|---|
| Operator | Alaska Electric Light & Power Co. |
| City | Juneau |
| County | Juneau County |
| State | Alaska |
| ZIP | 99801 |
| Coordinates | 58.31760, -134.10100 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 6 | Conventional Hydroelectric | Water | 2.2 MW | Operating | 1915 |
| 5 | Conventional Hydroelectric | Water | 1.8 MW | Operating | 1915 |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.