United States › Power plants › Battery storage › California
BATTERY STORAGEBlack Walnut Energy Storage LLC
Black Walnut Energy Storage LLC is a 15.0 MW operating battery storage site in Ventura County, California, operated by Black Walnut Energy Storage LLC. Its batteries store up to 15 MWh.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| BW1 | Batteries | 15 MW 15 MWh |
Plant details
- Operator
- Black Walnut Energy Storage LLC
- Location
- Ventura County, California
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
- Capacity
- Operating: 15.0 MW
- First unit online
- Oct 2025
- EIA plant ID
- 65396
Location
34.3576, -119.0573
Nearby power plants
- Santa Paula Energy Storage LLCBattery storage · 30.0 MW · 0.1 mi
- SaticoyBattery storage · 100 MW · 9.0 mi
- Springville HydroelectricHydroelectric plants · 1.0 MW · 9.3 mi
- Ventura SolarSolar farms · 2.9 MW · 9.3 mi
- Hecate Grid Gwent Storage 1Battery storage · 135 MW · 10.3 mi
- Silverstrand Grid Energy Storage SystemBattery storage · 11.0 MW · 10.4 mi
- IGS OXR1Solar farms · 4.8 MW · 10.8 mi
- CA OXNARD 2600 Sakioka DrSolar farms · 3.2 MW · 11.0 mi
- SunEdison Procter & Gamble OxnardSolar farms · 1.0 MW · 11.1 mi
- Bayer Oxnard - Meter# 4719Solar farms · 1.3 MW · 11.6 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem