Snoqualmie 2
King County, Washington · EIA plant ID 7867 · Operator: Puget Sound Energy Inc
Nameplate39MWSummer 34 MW
Generators2in service
Net generation107GWh12 mo to Dec 2025
Capacity factor36%hydro units, summer MW
Heat rate—thermal plants only
First online1957
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 43.2 | 15.9% | — |
| 2003 | 132.3 | 48.7% | — |
| 2004 | 178.3 | 65.5% | — |
| 2005 | 191.2 | 70.4% | — |
| 2006 | 161.8 | 59.6% | — |
| 2007 | 176.1 | 64.8% | — |
| 2008 | 181.1 | 66.5% | — |
| 2009 | 151.9 | 55.9% | — |
| 2010 | 114.7 | 42.3% | — |
| 2013 | 77.3 | 29.3% | — |
| 2014 | 141.6 | 52.1% | — |
| 2015 | 101 | 37.2% | — |
| 2016 | 152.5 | 51.7% | — |
| 2017 | 135.1 | 41.8% | — |
| 2018 | 127.2 | 43.2% | — |
| 2019 | 137.4 | 46.7% | — |
| 2020 | 181.4 | 61.5% | — |
| 2021 | 178.1 | 60.5% | — |
| 2022 | 124.2 | 42.2% | — |
| 2023 | 104.4 | 35.5% | — |
| 2024 | 108.9 | 36.9% | — |
| 2025 | 106.8 | 36.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 6A | Conventional Hydroelectric | HY | 14.4 | 12.6 | Feb 2013 | Operating | — | coming soon |
| 7 | Conventional Hydroelectric | HY | 24.3 | 21 | Jan 1957 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 5.6 | 5.8 | — | not_current | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 9.8 | 13.9 | Jan 1910 | Retired Jun 2010 | — | 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% | 39 MW |
Nearby plants
Within 80 km.
| Snoqualmie | 13 MW | 0.6 km |
| Black Creek | 4 MW | 11 km |
| Hancock Creek Hydroelectric Project | 6 MW | 11.8 km |
| Calligan Creek Hydroelectric Project | 6 MW | 13.1 km |
| Cedar Falls (WA) | 30 MW | 14.6 km |
| Twin Falls Hydro | 24 MW | 16 km |