California Energy Storage Showcase

More than 600,000 battery cells used to store energy and integrate renewable into the power grid.

The Tehachapi Wind Energy Storage project will test an 8 MW- 4 hour (32 MWh) lithium-ion battery that will store energy from the more than 5,000 existing wind turbines and any future additions. The Tehachapi Wind Resource Area spans the end of the San Joaquin Valley and spreads through Tehachapi Pass into the adjacent Mojave Desert. It is the home of many large scale wind farms which collectively produce more electricity than any other wind development in the United States. The battery system - made of more than 600,000 individual battery cells - use the same lithium-ion cells installed in battery packs for General Motors' Chevrolet Volt.

The project will demonstrate the performance of the lithium-ion batteries in actual system conditions while testing the capability to automate the operations of the battery energy storage system and integrate it into the power grid. Southern California Edison (SCE) expects this demonstration project to provide a significant amount of insight into the operational capabilities of large-scale, lithium-ion battery storage.

project photo project photo project photo

Photos courtesy of SCE.



Demonstrating the value of energy storage to provide:

  • Reliability
  • Renewable integration
  • Ancillary services

Type of Technology

Lithium-ion battery – An energy-storage chemistry that is common in consumer electronics. Lithium-Ion batteries are also growing in popularity in electric vehicles and grid storage applications.

Quick Facts

  • Power Capacity Rating: 8 MW
  • Energy Capacity Rating: 32 MWh
  • Type of Energy Storage: Lithium Ion

Key Developers and Partners

  • SCE
  • LG Chem
  • ABB

Energy Commission Funding



Completed but under repair. Expected to be back in operation by Spring 2015.


Location of Capturing the Wind Project in California