Tyee Lake Hydroelectric Facility
Tyee Lake Hydroelectric Facility is a 23 MW hydroelectric power plant in Wrangell Petersburg County, Alaska, operated by Southeast Alaska Power Agency. EIA-860M lists 2 generating units here. Its units entered service in 1983.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 22.6 MW
- 22.6 MW net summer
- Generating units
- 2
- In service
- 1983
- EIA plant ID
- 61166
Where it is
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- County
- Wrangell Petersburg County, Alaska
- Coordinates
- 56.2164, -131.5043
- Balancing authority
- NA
- Sector
- Commercial Non-CHP
Units, technology and status
- Operator of record
- Southeast Alaska Power Agency
- Primary energy source
- Hydro
- Technologies
- Conventional Hydroelectric
- Status
- Operating
Tyee Lake Hydroelectric Facility: FAQ
- Where is Tyee Lake Hydroelectric Facility?
- In Wrangell Petersburg County, Alaska (AK). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Tyee Lake Hydroelectric Facility?
- 23 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Tyee Lake Hydroelectric Facility?
- EIA-860M names Southeast Alaska Power Agency as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Tyee Lake Hydroelectric Facility LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Southeast Alaska Power Agency here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Tyee Lake Hydroelectric Facility LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Tyee Lake Hydroelectric Facility still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.