Energy Vault Holdings Inc., a key player in grid-scale energy storage, and utility-scale battery storage developer Jupiter Power have moved forward with the deployment of an additional 100 MW/200 MWh Battery Energy Storage System (BESS) in the Electric Reliability Council of Texas (ERCOT) region. This follows the completion of a similar-sized BESS—100 MW/200 MWh—at the same site in July 2024.
The latest project enhances grid resiliency in ERCOT by adding critical dispatchable capacity. Construction is already underway, with commercial operations expected to begin by the end of summer.
The system is based on Energy Vault’s proprietary X-Vault integration platform, featuring the UL9540-certified B-VAULT battery product and VaultOS Energy Management System. The platform’s modular architecture supports both AC- and DC-coupled configurations and offers flexibility in battery and inverter selection, enabling fast, efficient deployment tailored to individual project needs.
Jupiter Power’s Chief Technology Officer, Michael Geier, highlighted the strength of the partnership, stating, “With over 2,500 MWh in operation or construction, we’re excited to keep building with Energy Vault. Their delivery and technical flexibility are crucial at this stage of our growth.”
Marco Terruzzin, Chief Commercial and Product Officer at Energy Vault, noted the strategic importance of the collaboration: “Jupiter’s ERCOT portfolio has reached critical mass. Our teams are aligned in delivering safe, reliable, and economically viable storage solutions that support grid decarbonization.”
The relationship between the two companies dates back to 2022, when Jupiter and Energy Vault secured a 2.4 GWh supply chain agreement. Since then, Energy Vault’s B-VAULT portfolio has grown to over 2 GWh in active and development-stage projects.
