Vulcan-BN Geothermal Power Company
Imperial County, California · EIA plant ID 50210 · Operator: CalEnergy Operating Corporation
Nameplate40MWSummer 38 MW
Generators2in service
Net generation232GWh12 mo to Dec 2025
Capacity factor70%geothermal units, summer MW
Heat rate—thermal plants only
First online1985
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), geothermal 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 | 299.8 | 116.0% | — |
| 2002 | 314.8 | 121.8% | — |
| 2003 | 300.6 | 116.3% | — |
| 2004 | 302.7 | 116.8% | — |
| 2005 | 312.1 | 120.8% | — |
| 2006 | 308.8 | 119.5% | — |
| 2007 | 283.6 | 109.8% | — |
| 2008 | 273 | 105.4% | — |
| 2009 | 302 | 116.9% | — |
| 2010 | 315 | 121.9% | — |
| 2011 | 275 | 106.4% | — |
| 2012 | 243.2 | 93.9% | — |
| 2013 | 293.5 | 113.6% | — |
| 2014 | 271 | 104.9% | — |
| 2015 | 296.4 | 114.7% | — |
| 2016 | 262.9 | 101.4% | — |
| 2017 | 250.7 | 97.0% | — |
| 2018 | 274 | 106.0% | — |
| 2019 | 238.6 | 71.7% | — |
| 2020 | 260.3 | 78.0% | — |
| 2021 | 219.8 | 66.0% | — |
| 2022 | 254.2 | 76.4% | — |
| 2023 | 259.4 | 77.9% | — |
| 2024 | 227.2 | 68.0% | — |
| 2025 | 232.2 | 69.8% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Geothermal | ST | 30.1 | 29 | Dec 1985 | Operating | — | coming soon |
| GEN2 | Geothermal | ST | 9.5 | 9 | Dec 1985 | Operating | — | coming soon |
Owner / operator
Operator: CalEnergy Operating Corporation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| CE Generation | 100.0% | 40 MW |
Nearby plants
Within 80 km.
| Del Ranch Company | 46 MW | 0.2 km |
| Elmore Company | 46 MW | 2 km |
| Salton Sea Power Gen Co - Unit 3 | 54 MW | 2.1 km |
| Salton Sea Power Gen Co - Unit 4 | 48 MW | 2.2 km |
| Salton Sea Power LLC - Unit 5 | 58 MW | 2.3 km |
| Salton Sea Power Gen Co - Unit 2 | 20 MW | 2.7 km |