Terror Lake Microgrid — Plant Summary
- EIA Plant ID
- 71
- Capacity
- 33.6 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Kodiak Island, AK
- Operating Since
- 1984
- Generators
- 3
- Operator
- Kodiak Electric Assn Inc
- Parent Company
- —
- Annual Generation
- 134,080 MWh
- Capacity Factor
- 45.4%
- Balancing Authority
- —
- ISO/RTO
- —
- NERC Region
- —
Terror Lake Microgrid
OperatingHydro
Ranked #4 of 31 Hydro plants in AK#380 of 1454 nationally
33.6 MW Hydro operating in Kodiak Island, AK
EIAWD
33.6 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1984
Operating Since
Location
Coordinates
57.6861, -152.8950
County
Kodiak Island, AK
Nearby Plants
- Port Lions MicrogridDistillate Oil0.5 MW · 20.0 km
- Nymans Plant MicrogridDistillate Oil10 MW · 23.6 km
- Swampy Acres MicrogridDistillate Oil8.4 MW · 26.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Kodiak Electric Assn Inc | — | — |
| Owner(s) | Kodiak Electric Assn Inc | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Terror Lake Hydroelectric Generating Station is the principal power plant for Kodiak Island, Alaska. The Hydroelectricity station consists of three Pelton runner vertical shaft turbine units rated 11 megawatts each at 1200 feet head. Two units were installed when the station was constructed in 1985, and the third unit rated 11.5 MW was installed in the fall of 2013. The station is owned and operated by the Kodiak Electric Association, Inc., an electrical cooperative owned by its customers. The station is located about 25 miles from the city of Kodiak and is accessible only by air or boat.
Read more on WikipediaTerror Lake Microgrid is a hydroelectric power plant located in Kodiak Island County, Alaska. The plant has a total capacity of 33.6 MW consisting of three generators and is operated by Kodiak Electric Association Inc. It commenced operations in 1984, utilizing water as its primary fuel source and conventional hydroelectric technology.
In the most recent year with available data, the plant generated 134,080 MWh of electricity, achieving a capacity factor of 45.4%. Terror Lake Microgrid ranks as the 4th largest power plant out of 29 in Alaska, and 386th out of 1464 plants nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
—
Balancing Authority
—
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
Generation
10.1K MWh
Latest Month
134.1K MWh
Annual Generation
45.4%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (7)Beta
General
Pillar Mountain, Kodiak, AK, USA
The integrated wind-hydropower-diesel system at Pillar Mountain, AK provides the residents of Kodiak Island, the second-largest island in the US, with almost...
Arctic Council·4 years ago
Industry·technology
Pillar Mountain, Kodiak, AK, USA
The integrated wind-hydropower-diesel system at Pillar Mountain, AK provides the residents of Kodiak Island, the second-largest island in the US, with almost...
Arctic Council·4 years ago
General
An Alaskan Island Goes 100% Renewable
Kodiak Island's grid combines hydro, wind, batteries, and microgrid technologies.
RMI·10 years ago
General
An Alaskan Island Goes 100% Renewable
Kodiak Island's grid combines hydro, wind, batteries, and microgrid technologies.
RMI·10 years ago
Last updated 2026-03-26
View all 7 articles