Electron
Pierce County, Washington · EIA plant ID 3854 · Operator: Electron Hydro LLC
Nameplate23MWSummer 26 MW
Generators4in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%hydro units, summer MW
Heat rate—thermal plants only
First online1904
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) |
|---|---|---|---|
| 2001 | 126.1 | 55.4% | — |
| 2002 | 117.4 | 51.5% | — |
| 2003 | 132.2 | 58.0% | — |
| 2004 | 123.1 | 53.9% | — |
| 2005 | 96.7 | 48.4% | — |
| 2006 | 67.3 | 33.7% | — |
| 2007 | 88.7 | 44.4% | — |
| 2008 | 96.2 | 48.0% | — |
| 2009 | 90.9 | 45.5% | — |
| 2010 | 88 | 39.0% | — |
| 2011 | 50.3 | 22.3% | — |
| 2012 | 49.6 | 21.9% | — |
| 2013 | 49.7 | 22.0% | — |
| 2014 | 42.4 | 18.7% | — |
| 2015 | 62.8 | 27.8% | — |
| 2016 | 166.7 | 73.6% | — |
| 2017 | 128.7 | 57.0% | — |
| 2018 | 136.2 | 60.3% | — |
| 2019 | 143.6 | 63.5% | — |
| 2020 | 51 | 22.5% | — |
| 2021 | 0 | 0.0% | — |
| 2022 | 0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 5.1 | 5.7 | Apr 1904 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 5.1 | 5.9 | Apr 1904 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 5.1 | 6.3 | Apr 1904 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 7.5 | 7.9 | Apr 1929 | Operating | — | coming soon |
Owner / operator
Operator: Electron Hydro LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Electron Hydro LLC | 100.0% | 23 MW |
Nearby plants
Within 80 km.
| LRI LFGTE Facility | 5 MW | 8.9 km |
| Frederickson | 178 MW | 17.5 km |
| Frederickson Power LP | 318 MW | 17.9 km |
| LaGrande | 64 MW | 20.7 km |
| Alder | 51 MW | 23.4 km |
| Greenwater BESS | — | 27.6 km |