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Thayer Lake

Kootznoowoo Incorporated is constructing a run-of-river hydroelectric project to serve the community of Angoon. The project has a nameplate capacity of over 1 MW and will be located 6 miles east of Angoon. Features include a 64 square mile reservoir, a head of 250 feet, and the addition of 6.7 miles of transmission lines. The project is in coordination with the Tlingit-Haida Regional Energy Authority and will produce a possible 8,500 MWh per year, providing the community with 99% of its total electrical demand.

City of Angoon


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Daniel Hertrich, P.E., Project Manager
Hydroelectric Programs

Tel. (907) 771-3045
Fax (907) 771-3044


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Alaska Energy Authority
813 West Northern Lights Boulevard,  Anchorage, AK 99503
907-771-3000 (Phone) 907-771-3044 (Fax) Toll Free (Alaska Only) 888-300-8534