Innovative Hybrid Battery Energy Storage Solution for Value Stacked Grid Services

The purpose of this Agreement is to fund the design, development, testing, deployment, and operation of a Hybrid Battery Energy Storage System (HBESS) that leverages mixed battery chemistries and advanced micro battery management systems (mBMS) to address the limitations of existing battery energy storage systems and support California's transition to a sustainable, reliable, and decarbonized energy grid. The project will address the limitations of current battery energy storage systems (BESS) by developing and deploying a Hybrid Battery Energy Storage System (HBESS) that combines multiple battery chemistries, including lithium-ion, sodium-ion, and second-life batteries. This hybrid approach mitigates safety risks, such as deflagration in LFP batteries, by integrating safer technologies. The intelligent mBMS will optimize power and energy delivery for different use cases while enhancing safety, performance, and lifespan. By leveraging second-life batteries, the project also reduces costs and supports California's sustainability goals. The mBMS will extend the lifecycle of the HBESS to over 20 years, overcoming current limitations of battery degradation. This system will be able to perform a wide range of functions, including grid services, peak load reduction, and backup power, making it suitable for long-duration storage needs. The project's advancements in battery chemistry and management will significantly improve the technical and economic performance of energy storage systems, reducing costs to below $0.05/kWh. This will enable large-scale deployment, supporting California's renewable energy and storage targets. The HBESS will also contribute to a decarbonized, reliable, and resilient energy grid, helping to achieve California's statutory energy goals and address the needs of disadvantaged communities. The project will take a multi-phased approach, deploying the system at different scales at two different facilities, each located in disadvantaged communities. A 100kW/250kWh prototype will be deployed in Phase 1 at the Bay Area Vaishnav Parivar Temple and Cultural Community Center which also serves as an evacuation center, in San Jose, CA. Following the successful deployment in Phase 1, a larger 500kW/1MWh system would be deployed in Phase 2 at the San Pasqual Band of Mission Indians - Tribal Government Complex in Valley Center, CA.