Overview
- The companies held a ceremonial groundbreaking on May 19 that launched site work for the Alamo City Battery Energy Storage System in southeastern Bexar County.
- The facility is sized at 120 megawatts and 480 megawatt-hours, able to discharge for about four hours—enough, company estimates say, to power roughly 30,000 homes during peak events.
- OCI developed and financed the project and will retain ownership while CPS Energy will operate the system under a long-term storage capacity agreement.
- ING is providing construction financing, LG Energy Solution Vertech is supplying the battery technology, and Elgin Power Solutions is serving as the engineering, procurement and construction contractor.
- The project is expected to enter commercial operation in 2027 and adds to CPS Energy’s growing battery fleet as the utility seeks to raise storage from about 5% of generation toward a 7% share by 2040, improving local grid resilience and peak-demand response.