Sonoma Central Landfill Phase III
Landfill gas power plant in Sonoma County, California. 1.6 MW of nameplate capacity across 2 generators, operated by County of Sonoma Dept of Trnsp.
Also known as EIA plant 55880
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.6 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- July 2004First generator online
- Operator
- County of Sonoma Dept of TrnspEIA operator ID 17412
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Sonoma County, CA38.3017, −122.7489
- EIA plant ID
- 55880EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Sonoma Central Landfill Phase III produces
Free · EIA-923Net generation, 2025
0 MWh
0 MWh, final
Capacity factor, 2025
0.0%
2024: 0.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2017 to 2025
0.0–1.8
GWh a year. Low 2020, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | 10,123 | Not reported | 12 of 12 |
| 2006 | 11,433 | Not reported | 12 of 12 |
| 2007 | 11,880 | Not reported | 12 of 12 |
| 2008 | 3,855 | Not reported | 12 of 12 |
| 2009 | 2,231 | Not reported | 12 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | 1,503 | 10.7% | 12 of 12 |
| 2018 | 1,828 | 13.0% | 12 of 12 |
| 2019 | 548 | 3.9% | 12 of 12 |
| 2020 | 0 | 0.0% | 12 of 12 |
| 2021 | 0 | 0.0% | 12 of 12 |
| 2022 | 0 | 0.0% | 12 of 12 |
| 2023 | 0 | 0.0% | 12 of 12 |
| 2024 | 0 | 0.0% | 12 of 12 |
| 2025 | 0 | 0.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| P-31 | Landfill Gas | 0.8 | July 2004 |
| P-32 | Landfill Gas | 0.8 | July 2004 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists County of Sonoma Dept of Trnsp as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Sonoma Central Landfill Phase III and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Sonoma Central Landfill Phase III
More plants operated by County of Sonoma Dept of Trnsp
Questions about Sonoma Central Landfill Phase III
How much power does Sonoma Central Landfill Phase III produce?
Sonoma Central Landfill Phase III reported 0 MWh (0 MWh) of net generation in 2025.
Where is Sonoma Central Landfill Phase III?
Sonoma Central Landfill Phase III is in Sonoma County, California, at 38.3017, −122.7489. It is in the California Independent System Operator balancing area (CISO).
Who operates Sonoma Central Landfill Phase III?
EIA-860M for August 2026 lists County of Sonoma Dept of Trnsp as the operator (EIA operator ID 17412). The operator is not always the owner.
When did Sonoma Central Landfill Phase III start operating?
Its first generator began operating in July 2004, according to EIA-860M.
Does InfraMap have power prices for Sonoma Central Landfill Phase III?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Sonoma Central Landfill Phase III, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page