72nd largest plant in Alaska · 6987th nationally
Hiilangaay Hydro is a hydroelectric power plant in Alaska with a nameplate capacity of 5.0 MW. It generates roughly 6.4k MWh per year — enough to power about 611 average U.S. homes.
Its capacity factor of 15% reflects intermittent or peaking operation.
| Plant Name | Hiilangaay Hydro |
|---|---|
| Operator | Haida Energy, Inc. |
| City | Hydaburg |
| County | Prince Of Wales Ketchikan County |
| State | Alaska |
| ZIP | 99922 |
| Coordinates | 55.21725, -132.61003 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN 1 | Conventional Hydroelectric | Water | 5.0 MW | Operating | 2021 |
| Owner | Location | Share |
|---|---|---|
| Alaska Power And Telephone Co | Ketchikan, AK | 5000.0% |
| Haida Corporation | Hydaburg, AK | 5000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
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.