Energy Vault and Jupiter Boost Texas Battery Storage Capacity

Energy Vault

Expanding Utility-Scale Battery Energy Storage in Texas

Energy Vault and Jupiter Power will add 100MW/200MWh of utility-scale battery energy storage systems (BESS) to the Texas grid. The expansion builds on an existing 100MW/200MWh facility at a Jupiter site in the Electric Reliability Council of Texas (ERCOT) region, which is expected to begin commercial operations by late summer 2025.

The two companies have collaborated since signing a September 2022 deal to fast-track 2.4GWh of domestically qualified BESS. By increasing battery capacity, they aim to strengthen grid resilience, particularly in response to extreme weather events that have tested ERCOT’s stability in recent years.

Scaling Production and Supply Chain Integration

Austin-based Jupiter Power is developing 12GW of utility-scale energy storage projects across the United States, from California to Maine. In June 2024, Jupiter secured a 3GWh battery supply deal with China’s HiTHIUM, scheduled for delivery by the end of 2025. HiTHIUM is also establishing a 10GWh-per-year battery modules and systems plant in Mesquite, Texas, reinforcing domestic manufacturing capacity for large-scale storage projects.

The BESS expansion reflects growing demand for reliable renewable integration, enabling the grid to balance supply and demand more efficiently. By partnering with manufacturers and scaling local production, Energy Vault and Jupiter are positioning themselves as key players in the transition to a cleaner, more resilient US power grid.

The Metalnomist Commentary

The Energy Vault–Jupiter expansion underscores the accelerating deployment of large-scale storage to meet renewable integration challenges. The addition of domestic battery production in Texas could reduce supply chain risks and ensure faster deployment timelines. Success will depend on how efficiently these assets can be integrated into ERCOT’s operational framework.