Unisea G 2
Other power plant · Aleutians West County, Alaska
Nameplate capacity
18 MW
Rank in Alaska
#38
of 150 plants
In service since
1990
August 1990
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Unisea Inc
- County
- Aleutians West County
- Generating units
- 8
- Share of state capacity
- 0.56%
- Rank among other plants in Alaska
- #12 of 92
- EIA plant code
- 54422
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN3 | Petroleum Liquids | 2.7 MW | 2.3 MW | 1990 | Operating |
| GEN5 | Petroleum Liquids | 2.7 MW | 2.3 MW | 1990 | Operating |
| GEN2 | Petroleum Liquids | 2.6 MW | 2.3 MW | 1990 | Operating |
| GEN1 | Petroleum Liquids | 2.5 MW | 2.2 MW | 1990 | Operating |
| GEN4 | Petroleum Liquids | 2.5 MW | 2.2 MW | 1990 | Operating |
| GEN6 | Petroleum Liquids | 2.5 MW | 2.2 MW | 1990 | Operating |
| CAT4 | Petroleum Liquids | 1.0 MW | 1.0 MW | 2012 | Operating |
| CAT5 | Petroleum Liquids | 1.0 MW | 1.0 MW | 2012 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Alaska
| Kodiak Microgrid | Other | 18 MW |
| Fire Island Wind | Wind | 18 MW |
| Barrow | Natural gas | 17 MW |
| Kotzebue Hybrid | Other | 17 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 18 MW solar plant and a 18 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Alaska power plants · What Alaska actually generates