NSB Wainwright Utility
Other power plant · North Slope County, Alaska
Nameplate capacity
3.0 MW
Rank in Alaska
#90
of 150 plants
In service since
1988
August 1988
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- North Slope Borough Power & Light
- County
- North Slope County
- Generating units
- 5
- Share of state capacity
- 0.10%
- Rank among other plants in Alaska
- #42 of 92
- EIA plant code
- 7488
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| PG4A | Petroleum Liquids | 0.9 MW | 0.9 MW | 2001 | Operating |
| PG5 | Petroleum Liquids | 0.9 MW | 0.9 MW | 2001 | Operating |
| PG1 | Petroleum Liquids | 0.4 MW | 0.4 MW | 1988 | Operating |
| PG2 | Petroleum Liquids | 0.4 MW | 0.4 MW | 1988 | Operating |
| PG3 | Petroleum Liquids | 0.4 MW | 0.4 MW | 1989 | 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
| ESS Battery Microgrid | Battery storage | 3.0 MW |
| Kasidaya Creek Hydro | Hydro | 3.0 MW |
| Craig (AK) | Other | 2.8 MW |
| Gwitchyaa Zhee | Other | 2.8 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 3.0 MW solar plant and a 3.0 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