Encogen
Whatcom County, Washington · EIA plant ID 7870 · Operator: Puget Sound Energy Inc
Nameplate176MWSummer 159 MW
Generators4in service
Net generation157GWh12 mo to Aug 2026
Capacity factor11%gas/coal/oil units, summer MW
Heat rate9,526Btu/kWhfossil units, electric fuel, HHV
First online1993Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2001 | 1,402.7 | — | — |
| 2002 | 941.6 | — | — |
| 2003 | 748.7 | 53.4% | 9,223 |
| 2004 | 456.3 | 30.6% | 9,563 |
| 2005 | 459.1 | 30.8% | 9,298 |
| 2006 | 260 | 17.5% | 9,848 |
| 2007 | 143.1 | 9.6% | 11,096 |
| 2008 | 98.9 | 8.1% | 10,250 |
| 2009 | 380.1 | 31.2% | 8,907 |
| 2010 | 146.2 | 10.5% | 12,435 |
| 2011 | 91.8 | 6.6% | 9,401 |
| 2012 | 112.4 | 8.0% | 9,236 |
| 2013 | 283.5 | 20.3% | 9,121 |
| 2014 | 219.6 | 15.7% | 9,297 |
| 2015 | 300.3 | 21.5% | 9,212 |
| 2016 | 212.7 | 15.2% | 8,903 |
| 2017 | 202.5 | 14.5% | 9,381 |
| 2018 | 200.5 | 14.4% | 9,299 |
| 2019 | 401.3 | 28.7% | 9,232 |
| 2020 | 370.1 | 26.4% | 9,316 |
| 2021 | 530.5 | 38.0% | 9,388 |
| 2022 | 426.8 | 30.6% | 9,278 |
| 2023 | 903 | 64.7% | 9,141 |
| 2024 | 754 | 53.8% | 9,337 |
| 2025 | 354.1 | 25.4% | 9,361 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo16,502 MMBtu
Last month with liquid burnAug 2026
Switch while operatingYes
Net summer MW on gas104
Net summer MW on oil102
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 39.4 | 34.5 | Mar 1993 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 39.4 | 34.5 | Mar 1993 | Operating | — | coming soon |
| CTG3 | Natural Gas Fired Combined Cycle | CT | 39.4 | 34.5 | Mar 1993 | Operating | — | coming soon |
| STG | Natural Gas Fired Combined Cycle | CA | 58.2 | 55.9 | Apr 1993 | Operating | — | coming soon |
Owner / operator
Operator: Puget Sound Energy Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Puget Sound Energy Inc | 100.0% | 176 MW |
Nearby plants
Within 80 km.
| Ferndale Generating Station | 286 MW | 17.3 km |
| March Point Cogeneration | 140 MW | 31.1 km |
| Sumas Power Plant | 126 MW | 31.3 km |
| Fredonia | 376 MW | 32.5 km |
| Sierra Pacific Burlington Facility | 28 MW | 33.4 km |
| Glacier Battery Storage | 2 MW | 42.6 km |