Purple Lake
Hatchery Road, Metlakatla, AK 99926Plant Summary Information
Purple Lake is ranked #48 out of 125 power plants in Alaska in terms of total annual net electricity generation.
Purple Lake is comprised of 3 generators and generated 3.8 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Purple Lake |
|---|---|
| Utility Name | Metlakatla Power & Light |
| Location | Prince of Wales-Hyder Census Area, AK |
| Initial Operation Date | January 1956 |
| Last Update | Dec 2025 |
| Annual Generation | 13.9 GWh |
| Annual Consumption | 51.5 k MMBtu |
| Ranked #5,788 out of 13,081 Power Plants Nationwide | |
| Ranked #800 out of 1,311 Water Power Plants Nationwide | |
| Ranked #48 out of 125 Alaska Power Plants | |
| Ranked #20 out of 32 Alaska Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Purple Lake
Monthly Plant Fuel Consumption for Purple Lake
Purple Lake Details
| Summary Information | |
|---|---|
| Plant Name | Purple Lake (6302) |
| Plant Address | Hatchery Road, Metlakatla, AK 99926 |
| Utility | Metlakatla Power & Light (12385) |
| Latitude, Longitude | 55.09126, -131.54498 |
| Generation Dates on File | Jan 2002 to Dec 2025 |
| Initial Operation Date | January 1956 |
| Annual Generation | 13.9 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 | Purple Lake |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Metlakatla Power & Light (12385) AK |
| Grid Voltage | 12.47 kV |
| Energy Storage | No |
Generator 1 Details Operating January 1956
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.3 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1.3 MW |
| Winter Capacity | 1.3 MW |
| Minimum Load | 0.2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | January 1956 |
| 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 | 10M |
| Multiple Fuels | No |
Generator 2 Details Operating January 1956
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.3 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1.3 MW |
| Winter Capacity | 1.3 MW |
| Minimum Load | 0.2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | January 1956 |
| 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 | 10M |
| Multiple Fuels | No |
Generator 3 Details Operating December 1962
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.3 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1.3 MW |
| Winter Capacity | 1.3 MW |
| Minimum Load | 0.2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | December 1962 |
| 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 | 10M |
| Multiple Fuels | No |
Purple Lake Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #790 | Silvis | Ketchikan, AK | 14.3 GWh |
| #791 | Magic Dam Hydroelectric Project | Shoshone, ID | 14.3 GWh |
| #792 | Sacramento Municipal Util Dist | Sacramento, CA | 14.2 GWh |
| #793 | Wilbur | Elizabethon, TN | 14.2 GWh |
| #794 | Townsend Hydro | New Brighton, PA | 14.2 GWh |
| #795 | Bowman | Nevada City, CA | 14.2 GWh |
| #796 | Clark Falls | Milton, VT | 14.1 GWh |
| #797 | Waterport | Waterport, NY | 14.0 GWh |
| #798 | Goat Lake Hydro | Skagway, AK | 14.0 GWh |
| #799 | Hastings City Hydroelectric | Hastings, MN | 13.9 GWh |
| #801 | Alexander | Merrill, WI | 13.9 GWh |
| #802 | Rio | Glen Spey, NY | 13.8 GWh |
| #803 | Petersburg | Petersburg, AK | 14.4 GWh |
| #804 | Effley | Croghan, NY | 13.8 GWh |
| #805 | Hoist | Negaunee, MI | 13.7 GWh |
| #806 | Errol Hydroelectric Project | Errol, NH | 13.6 GWh |
| #807 | Mio | Mio, MI | 13.6 GWh |
| #808 | White River Lock and Dam 1 | Batesville, AR | 13.5 GWh |
| #809 | White River Lock and Dam 2 | Locust Grove, AR | 13.5 GWh |
| #810 | Basalt | Aspen, CO | 13.5 GWh |
Nearby Power Plants
Below are closest 15 power plants surrounding Purple Lake.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Beaver Falls | Ketchikan, AK | 48.0 GWh | 20.1 mi |
| Black Bear Lake | Craig, AK | 22.8 GWh | 68.5 mi |
| Chester Lake | Metlakatla, AK | 5.2 GWh | 1.8 mi |
| Craig (AK) | Craig, AK | 1.8 GWh | 68.5 mi |
| False Island | Thorne Bay, AK | 2.5 GWh | 68.3 mi |
| Hiilangaay Hydro | Hydaburg, AK | 4.4 GWh | 42.9 mi |
| Ketchikan | Ketchikan, AK | 22.6 GWh | 17.9 mi |
| Klawock Power Generation Station | Klawock, AK | 500.0 MWh | 68.4 mi |
| Petersburg | Petersburg, AK | 14.4 GWh | 130.8 mi |
| Silvis | Ketchikan, AK | 14.3 GWh | 20.1 mi |
| South Fork | Klawock, AK | 5.6 GWh | 62.2 mi |
| Swan Lake | Ketchikan, AK | 77.6 GWh | 37 mi |
| Tyee Lake Hydroelectric Facility | Wrangell, AK | 103.4 GWh | 77.8 mi |
| Whitman | Ketchikan, AK | 7.3 GWh | 16.4 mi |
| Wrangell | Wrangell, AK | 604.0 MWh | 100 mi |