Encina Water Pollution Control
San Diego County, California · EIA plant ID 10026 · Operator: Encina Joint Powers Authority
Nameplate3MWSummer 3 MW
Generators4in service
Net generation14GWh12 mo to Aug 2026
Capacity factor48%other units, summer MW
Heat rate11,816Btu/kWhfossil units, electric fuel, HHV
First online2008
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), 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 4.9 | — | 8,207 |
| 2002 | 7 | — | 10,163 |
| 2003 | 8 | — | 12,606 |
| 2004 | 7.5 | 80.7% | 12,218 |
| 2005 | 6.6 | 62.8% | 12,218 |
| 2006 | 5.3 | 37.4% | 12,218 |
| 2007 | 6 | 75.3% | 11,973 |
| 2008 | 2.3 | 52.7% | 11,976 |
| 2009 | 11.2 | 38.9% | 11,268 |
| 2010 | 11.8 | 33.6% | 11,974 |
| 2011 | 12.2 | 38.5% | 11,440 |
| 2012 | -3.5 | -12.0% | — |
| 2013 | 13.2 | 44.3% | 11,435 |
| 2014 | 13.2 | 43.1% | 10,344 |
| 2015 | 13.5 | 42.1% | 10,078 |
| 2016 | 12.9 | 42.0% | 10,048 |
| 2017 | 13.8 | 45.3% | 9,945 |
| 2018 | 15 | 49.6% | 10,184 |
| 2019 | 14.5 | 48.3% | 10,100 |
| 2020 | 14.6 | 46.1% | 10,408 |
| 2021 | 14.5 | 46.3% | 10,900 |
| 2022 | 14.4 | 46.0% | 10,831 |
| 2023 | 14.4 | 48.9% | 10,878 |
| 2024 | 14.2 | 48.6% | 11,187 |
| 2025 | 14.3 | 47.7% | 11,620 |
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 |
|---|---|---|---|---|---|---|---|---|
| EG10 | Other Waste Biomass | IC | 0.8 | 0.8 | Nov 2008 | Operating | — | coming soon |
| EG20 | Other Waste Biomass | IC | 0.8 | 0.8 | Nov 2008 | Operating | — | coming soon |
| EG30 | Other Waste Biomass | IC | 0.8 | 0.8 | Jan 2009 | Operating | — | coming soon |
| EG40 | Other Waste Biomass | IC | 0.8 | 0.8 | Apr 2009 | Operating | — | coming soon |
| EG1 | Natural Gas Internal Combustion Engine | IC | 0.5 | 0.5 | Jan 1984 | Retired Feb 2008 | — | coming soon |
| EG2 | Natural Gas Internal Combustion Engine | IC | 0.5 | 0.5 | Jan 1984 | Retired May 2008 | — | coming soon |
| EG3 | Other Waste Biomass | IC | 0.5 | 0.5 | Jan 1984 | Retired May 2008 | — | coming soon |
Owner / operator
Operator: Encina Joint Powers Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Encina Joint Powers Authority | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Legoland CA Phase I | 1 MW | 1.7 km |
| Carlsbad Energy Center | 659 MW | 2.9 km |
| Life Technologies Carlsbad | 1 MW | 4 km |
| Watkins Manufacturing Co. | 2 MW | 8.4 km |
| San Diego Sockers | 1 MW | 10.1 km |
| San Diego - NCRC at Vista | 2 MW | 10.2 km |