Terror Lake hydropower facility provides 80% of the power for the City of Kodiak. Most of the remaining energy is generated by wind turbines. In 2019, Kodiak Electric Association started diverting much of Hidden Basin Creek into the Terror Lake reservoir to increase the total energy they could produce each year.
Project Name: Terror Lake (Hidden Basin Diversion)
FERC Project Number: P-2743
Water Body: Kizhuyak River
Type of Project: Storage Dam
Status: Operating, License Amendment in process
Primary User: Kodiak
Operating Utility: Kodiak Electric Association, INC
FERC License Expiration: October 05, 2031
Licensing Process: Traditional
Nameplate Power Capacity (MW): 34
Annual Estimate Generation (GWH): 135
Surface Area of Impoundment (acres): 1,020
Project Details: 193 feet high, 2,100 feet long dam, creating a 1020 acre reservoir with a capacity of 108,000 of useable storage
NOAA Fisheries Trust Resources: Sockeye, chum, coho, and pink salmon, and steelhead trout.
NOAA Fisheries Area of Interest: Ensuring water quality and quantity for habitat protection. Also ensuring the prolific salmon run in the unnamed stream adjacent to Hidden Basin Creek continues to thrive. Both streams run above the same shallow gravel aquifer.