Southeast Alaska Power Agency (SEAPA) is a public power utility that was established in 1976. The company is based in Ketchikan, Alaska, and is owned by three municipalities that include the City and Borough of Wrangell, the City and Borough of Ketchikan, and the City of Petersburg. SEAPA's primary objective is to provide reliable and affordable electricity to the communities it serves.

SEAPA is committed to developing renewable energy projects to reduce its reliance on fossil fuels. The company has been developing small hydro projects in Southeast Alaska since the 1980s. Hydroelectric power is a clean and renewable energy source that harnesses the power of water to generate electricity. SEAPA's small hydro projects have helped to reduce the region's dependence on diesel fuel for electricity generation.

SEAPA's small hydro projects are located in remote areas of Southeast Alaska, where access to the power grid is limited. The company has developed three small hydro projects that include Swan Lake, Tyee Lake, and Annex Creek. These projects have a combined installed capacity of 55 megawatts (MW) and generate approximately 200 million kilowatt-hours (kWh) of electricity annually.

Swan Lake Hydroelectric Project

The Swan Lake Hydroelectric Project is located near Ketchikan, Alaska. The project was developed in two phases, with the first phase completed in 1984 and the second phase completed in 1987. The project has an installed capacity of 36 MW and generates approximately 130 million kWh of electricity annually. The project consists of a dam, reservoir, and powerhouse that are located on Swan Lake.

The dam is 120 feet high and 1,100 feet long and impounds a reservoir that covers 1,500 acres. The reservoir has a storage capacity of 24,000 acre-feet of water. The powerhouse contains three turbine-generator units that are capable of producing 12 MW of electricity each. The project is operated remotely from SEAPA's control center in Ketchikan.

Tyee Lake Hydroelectric Project

The Tyee Lake Hydroelectric Project is located near Wrangell, Alaska. The project was developed in two phases, with the first phase completed in 1989 and the second phase completed in 1997. The project has an installed capacity of 13 MW and generates approximately 50 million kWh of electricity annually. The project consists of a dam, reservoir, and powerhouse that are located on Tyee Lake.

The dam is 120 feet high and 1,100 feet long and impounds a reservoir that covers 1,300 acres. The reservoir has a storage capacity of 18,000 acre-feet of water. The powerhouse contains two turbine-generator units that are capable of producing 6.5 MW of electricity each. The project is operated remotely from SEAPA's control center in Ketchikan.

Annex Creek Hydroelectric Project

The Annex Creek Hydroelectric Project is located near Juneau, Alaska. The project was developed in two phases, with the first phase completed in 1983 and the second phase completed in 1985. The project has an installed capacity of 6 MW and generates approximately 20 million kWh of electricity annually. The project consists of a dam, reservoir, and powerhouse that are located on Annex Creek.

The dam is 100 feet high and 400 feet long and impounds a reservoir that covers 100 acres. The reservoir has a storage capacity of 1,200 acre-feet of water. The powerhouse contains one turbine-generator unit that is capable of producing 6 MW of electricity. The project is operated remotely from SEAPA's control center in Ketchikan.

SEAPA's small hydro projects have helped to reduce the region's dependence on diesel fuel for electricity generation. The projects have also provided economic benefits to the communities they serve. The projects have created jobs during construction and operation and have provided a reliable source of revenue for the municipalities that own SEAPA.

SEAPA is committed to developing renewable energy projects to reduce its reliance on fossil fuels. The company is exploring the development of additional small hydro projects in Southeast Alaska. The company is also exploring the development of other renewable energy projects, such as wind and solar, to further reduce its carbon footprint. SEAPA's commitment to renewable energy is helping to create a more sustainable future for Southeast Alaska.