A privately held developer and operator of energy generation and storage facilities. Forty years of designing, permitting, building, and running the assets that keep the grid firm.
Six disciplines under one roof — development, permitting, construction, operations, maintenance, and the research that keeps a forty-year-old fleet relevant for another forty.
Fast-start peaking and reliability generation, 45–98 MW class, sub-10-minute starts. Engineered for grid stability in a renewables-heavy mix.
→ 02Enhanced Gas Turbine architecture — gas turbines and battery storage dispatched as one asset. Roughly 60% reduction in start emissions.
→ 03Standalone BESS and co-located solar from greenfield through commercial operation, interconnection, and dispatch optimization.
→ 04CEC, AFC, CPUC, SCAQMD, SDAPCD, SJVAPCD. Twelve filings since 1982 — every one reached commercial operation.
→ 05In-house operations across the fleet, manned 24/7. The same engineering team from design through thirty years of operation.
→ 06First commercial integrated hybrid gas-battery facility in the U.S. Active research in hydrogen blending and long-duration storage.
→Eight operating facilities across three California air districts. Every megawatt developed by Wellhead is still operated by Wellhead.
| No. | Facility | Location | Type | COD | Capacity | |
|---|---|---|---|---|---|---|
| 01 | Stanton Energy Reliability Center | Orange County | Hybrid EGT | 2020 | 98 MW | |
| 02 | Stanton Battery Energy Storage | Orange County | BESS | 2020 | 26 MW | |
| 03 | Chula Vista Energy Center | San Diego County | Peaker | 2009 | 45 MW | |
| 04 | El Cajon Energy Center | San Diego County | Peaker | 2017 | 45 MW | |
| 05 | Escondido Energy Center | San Diego County | Peaker | 2009 | 45 MW | |
| 06 | Delano Energy Center | Kern County | Cogen | 2010 | 49 MW |
The crew that develops the asset is the crew that permits it, builds it, and operates it for the next thirty years. Continuity is the product.
Start a conversation →Selected recognition for engineering, emissions performance, and innovation in dispatchable hybrid operation.