Texas Energy Leaders Unite for 120 MW Grid-Strengthening Battery Storage Project

Texas-based OCI Energy LLC, CPS Energy, and LG Energy Solution Vertech, the U.S. energy storage division of LG Energy Solution, have signed a Memorandum of Understanding (MOU) to collaborate on the development of the Alamo City Battery Energy Storage System (Alamo City BESS) project.

The agreement was signed during a ceremony held in Seoul, South Korea, where the parent companies of OCI Energy and LG Energy Solution Vertech are headquartered. The partnership marks a major step forward in efforts to strengthen grid infrastructure and improve energy security and reliability for residents and businesses in San Antonio.

The Alamo City BESS project is a 120 megawatt (MW) / 480 megawatt-hour (MWh) battery energy storage system currently in development in Bexar County, Texas. Once completed, it will help supply power to the ERCOT grid during peak demand and support San Antonio’s long-term goals for sustainability and energy resilience. The project also represents a significant contribution to the state’s expanding battery storage capacity.

“This collaboration reflects our shared commitment to energy innovation and affordability,” said Sabah Bayatli, President of OCI Energy. “The Alamo City BESS project demonstrates the strength of international partnerships in delivering critical energy infrastructure that will provide CPS Energy customers with greater energy security. We are proud to work alongside CPS Energy and LG Energy Solution Vertech to realize this vision for a stronger, safer grid that provides more affordable power, while supporting local economic development.”

“We are proud to support San Antonio’s energy transition through this strategic collaboration,” added Jaehong Park, President and CEO of LG Energy Solution Vertech. “This project integrates our advanced lithium-ion batteries with comprehensive solutions—including system integration, control software, and long-term services. The deployment of our BESS marks a key milestone in stabilizing the Texas power grid, and we remain committed to advancing grid reliability as we expand our efforts across Texas.”

As outlined in the MOU, LG Energy Solution Vertech will supply the battery storage system and energy management technology to OCI Energy, which is leading the project’s development. CPS Energy, serving as the project’s off-taker, plans to enter into an agreement with OCI Energy to purchase energy storage capacity from the facility.

OCI Energy will be responsible for the full lifecycle of the project, including development, financing, construction, operation, maintenance, and ownership. The collaboration highlights CPS Energy’s ongoing leadership in advancing sustainable energy integration in Texas.

The project is expected to play a key role in bolstering the reliability of the regional grid and supporting the state’s transition to cleaner, more flexible energy systems.