NSB Nuiqsut Utility
North Slope County, Alaska · EIA plant ID 7484 · Operator: North Slope Borough Power & Light
Nameplate4MWSummer 4 MW
Generators6in service
Net generation7GWh12 mo to Dec 2025
Capacity factor19%gas/coal/oil units, summer MW
Heat rate11,590Btu/kWhfossil units, electric fuel, HHV
First online1999Runs as peaking
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 5.1 | — | — |
| 2003 | 5.3 | 23.1% | 9,809 |
| 2004 | 4.3 | 18.7% | 12,335 |
| 2005 | 3.9 | 17.2% | 12,668 |
| 2006 | 3.4 | 14.9% | 11,411 |
| 2007 | 4 | 17.6% | 9,850 |
| 2008 | 4.7 | 16.4% | 9,543 |
| 2009 | 4.7 | 1.5% | 11,600 |
| 2011 | 3.2 | 8.8% | 7,001 |
| 2012 | 3.5 | 9.5% | 7,309 |
| 2013 | 5.9 | 15.4% | — |
| 2014 | 6.6 | 17.1% | 12,716 |
| 2015 | 6.6 | 17.2% | 8,799 |
| 2016 | 6.3 | 16.4% | 13,083 |
| 2017 | 6.8 | 17.6% | 13,150 |
| 2018 | 6.8 | 17.6% | 13,153 |
| 2019 | 6.9 | 17.9% | 12,390 |
| 2020 | 5.1 | 13.2% | 19,178 |
| 2021 | 7.3 | 19.0% | 10,909 |
| 2022 | 7.3 | 18.9% | 12,302 |
| 2023 | 7.4 | 19.2% | 12,812 |
| 2024 | 7.7 | 19.9% | 14,570 |
| 2025 | 7.5 | 19.4% | 11,590 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| PG1A | Petroleum Liquids | IC | 0.9 | 0.9 | Sep 1999 | Operating | — | coming soon |
| PG2A | Petroleum Liquids | IC | 0.9 | 0.9 | Sep 1999 | Operating | — | coming soon |
| PG3A | Petroleum Liquids | IC | 0.4 | 0.4 | Sep 1999 | Operating | — | coming soon |
| PG3B | Natural Gas Internal Combustion Engine | IC | 0.6 | 0.6 | Apr 2013 | Operating | — | coming soon |
| PG5A | Natural Gas Internal Combustion Engine | IC | 0.8 | 0.8 | Oct 2008 | Operating | — | coming soon |
| PG6A | Natural Gas Internal Combustion Engine | IC | 0.8 | 0.8 | Oct 2008 | Operating | — | coming soon |
| PG4A | Petroleum Liquids | IC | 0.4 | 0.4 | Sep 1999 | Retired Dec 2012 | — | coming soon |
Owner / operator
Operator: North Slope Borough Power & Light. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| North Slope Borough Power & Light | 100.0% | 4 MW |
Nearby plants
Within 80 km.
No other plants within 80 km.