Sonoma Central Landfill Phase III
Sonoma County, California · EIA plant ID 55880 · Operator: County of Sonoma Dept of Trnsp
Nameplate2MWSummer 1 MW
Generators2in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%other units, summer MW
Heat rate—thermal plants only
First online2004
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), other 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) |
|---|---|---|---|
| 2005 | 10.1 | 82.5% | — |
| 2006 | 11.4 | 93.2% | — |
| 2007 | 11.9 | 96.9% | — |
| 2008 | 3.9 | 31.4% | — |
| 2009 | 2.2 | 18.2% | — |
| 2017 | 1.5 | 12.3% | — |
| 2018 | 1.8 | 14.9% | — |
| 2019 | 0.5 | 4.5% | — |
| 2020 | 0 | 0.0% | — |
| 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 |
|---|---|---|---|---|---|---|---|---|
| P-31 | Landfill Gas | IC | 0.8 | 0.7 | Jul 2004 | Operating | — | coming soon |
| P-32 | Landfill Gas | IC | 0.8 | 0.7 | Jul 2004 | Operating | — | coming soon |
Owner / operator
Operator: County of Sonoma Dept of Trnsp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| County of Sonoma Dept of Trnsp | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Sonoma Central Landfill Phase II | 3 MW | 0 km |
| Sonoma Central Landfill Phase I | 3 MW | 0 km |
| Bodega Avenue Solar LLC | 2 MW | 4.6 km |
| Laguna Water Reclamation Facility | 4 MW | 7.6 km |
| Lavio Solar | 1 MW | 14.1 km |
| Ellis Creek Solar | 4 MW | 17.7 km |