Hiilangaay Hydro
Unnamed Road, Hydaburg, AK 99922Plant Summary Information
Hiilangaay Hydro is ranked #25 out of 33 hydroelectric power plants in Alaska in terms of total annual net electricity generation.
Hiilangaay Hydro is comprised of 1 generator and generated 465.0 MWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Hiilangaay Hydro |
|---|---|
| Utility Name | Haida Energy, Inc. |
| Location | Prince of Wales-Hyder Census Area, AK |
| Initial Operation Date | January 2021 |
| Last Update | Dec 2025 |
| Annual Generation | 6.1 GWh |
| Annual Consumption | 22.7 k MMBtu |
| Ranked #7,864 out of 13,301 Power Plants Nationwide | |
| Ranked #1,032 out of 1,316 Water Power Plants Nationwide | |
| Ranked #61 out of 127 Alaska Power Plants | |
| Ranked #25 out of 33 Alaska Water Power Plants | |
| Fuel Types | Water |
| Previous Operator |
Alaska Power and Telephone Co (2013 to 2014) Haida Energy, Inc. (2015 to 2025) |
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Monthly Net Generation for Hiilangaay Hydro
Monthly Plant Fuel Consumption for Hiilangaay Hydro
Hiilangaay Hydro Details
| Summary Information | |
|---|---|
| Plant Name | Hiilangaay Hydro (59037) |
| Plant Address | Unnamed Road, Hydaburg, AK 99922 |
| Utility | Haida Energy, Inc. (60222) |
| Latitude, Longitude | 55.21725, -132.61003 |
| Generation Dates on File | Jan 2021 to Dec 2025 |
| Initial Operation Date | January 2021 |
| Annual Generation | 6.1 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | |
| Balancing Authority | () |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Lake Mellen |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Alaska Power and Telephone Co (219) AK |
| Grid Voltage | 34.50 kV |
| Energy Storage | No |
Generator GEN 1 Details Operating January 2021
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Jointly Owned |
| Nameplate Capacity | 5 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 5 MW |
| Winter Capacity | 5 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | January 2021 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Hiilangaay Hydro Plant Owners
| Owner Name | Address | Ownership |
|---|---|---|
| Alaska Power and Telephone Co | 136 Misty Marie Lane, Ketchikan, AK 99901 | 50.00% |
| Haida Corporation | PO Box 89, Hydaburg, AK 99222 | 50.00% |
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #1022 | North Gorham | Gorham, ME | 6.5 GWh |
| #1023 | Mother Ann Lee | Harrodsburg, KY | 6.4 GWh |
| #1024 | Great Falls Hydro Project | Paterson, NJ | 6.3 GWh |
| #1025 | Pleasant Valley Hydro | Bishop, CA | 6.3 GWh |
| #1026 | Glen | Rutland, VT | 6.3 GWh |
| #1027 | Hooksett | Hooksett, NH | 6.3 GWh |
| #1028 | Canaan | Canaan, VT | 6.3 GWh |
| #1029 | Boulder City Silver Lake Hydro | Boulder, CO | 6.2 GWh |
| #1030 | Orono Hydro Station | Orono, ME | 6.2 GWh |
| #1031 | Swift Creek | Afton, WY | 6.1 GWh |
| #1033 | Ephratah | Saint Johnsville, NY | 6.1 GWh |
| #1034 | Auglaize Hydro | Bryan, OH | 6.1 GWh |
| #1035 | Bolton Falls | Duxbury, VT | 6.1 GWh |
| #1036 | Tri-County Water Hydropower Project | Ridgway, CO | 6.1 GWh |
| #1037 | Brasfield | Petersburg, VA | 6.1 GWh |
| #1038 | Notre Dame Hydro | South Bend, IN | 6.0 GWh |
| #1039 | Newcastle | Auburn, CA | 6.0 GWh |
| #1040 | Oconto Falls Lower | Oconto Falls, WI | 6.0 GWh |
| #1041 | Oconto Falls Upper | Oconto Falls, WI | 6.0 GWh |
| #1042 | Roaring Creek Water Power | Montgomery Creek, CA | 6.0 GWh |
Nearby Power Plants
Below are closest 17 power plants surrounding Hiilangaay Hydro.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Beaver Falls | Ketchikan, AK | 48.0 GWh | 46.2 mi |
| Black Bear Lake | Craig, AK | 22.8 GWh | 27.7 mi |
| Chester Lake | Metlakatla, AK | 5.2 GWh | 42.6 mi |
| Craig (AK) | Craig, AK | 417.0 MWh | 27.7 mi |
| False Island | Thorne Bay, AK | 935.0 MWh | 27.9 mi |
| Kake | Kake, AK | 1.7 GWh | 130.8 mi |
| Ketchikan | Ketchikan, AK | 22.6 GWh | 39.4 mi |
| Klawock Power Generation Station | Klawock, AK | 59.0 MWh | 29.8 mi |
| Petersburg | Petersburg, AK | 14.4 GWh | 110.9 mi |
| Purple Lake | Metlakatla, AK | 13.9 GWh | 42.9 mi |
| Silvis | Ketchikan, AK | 14.3 GWh | 44.4 mi |
| South Fork | Klawock, AK | 5.6 GWh | 26.3 mi |
| Swan Lake | Ketchikan, AK | 77.6 GWh | 56.3 mi |
| Thorne Bay Plant | Craig, AK | 78.0 MWh | 32.5 mi |
| Tyee Lake Hydroelectric Facility | Wrangell, AK | 103.4 GWh | 81.3 mi |
| Whitman | Ketchikan, AK | 7.3 GWh | 43.2 mi |
| Wrangell | Wrangell, AK | 604.0 MWh | 86.4 mi |