Energy Vault Holdings, Inc. (NYSE: NRGV) announced that construction of its SOSA Energy Center, a 150‑MW/300‑MWh battery storage system in Madison County, Texas, began in the fourth quarter of 2025. The announcement was made on January 5 2026, marking the first Asset Vault project to move from acquisition to physical construction.
The SOSA Energy Center was originally developed by Savion, a Shell subsidiary, and was acquired by Energy Vault in Q4 2025. The project is part of the company’s Asset Vault platform, which is designed to generate predictable, high‑margin recurring revenue from owned storage assets. The platform’s build‑own‑operate model represents a strategic pivot away from the company’s earlier equipment‑sales focus.
Energy Vault’s cash position rose from $61.9 million at the end of Q3 2025 to over $100 million in the most recent quarter, a 65 % increase. The jump is largely attributable to a $300 million preferred‑equity investment from Orion Infrastructure Capital, which provided the capital needed to accelerate construction and expand the project pipeline.
The company projects commercial operation of the SOSA Energy Center by the second quarter of 2027. Management estimates the project will generate approximately $350 million in total revenue over its technical life, with annual recurring revenues of $17–$20 million. These figures support Energy Vault’s goal of reaching roughly $100 million in annual recurring EBITDA from its owned portfolio within the next few years.
CEO Robert Piconi emphasized the significance of the milestone, stating, “Breaking ground on the SOSA Energy Center so quickly after acquisition demonstrates the velocity with which we are executing and growing Energy Vault’s Asset Vault platform.” He added that Texas’s leadership in renewable energy adoption makes the project a cornerstone of the company’s growth strategy.
Investor sentiment has been positive, reflecting confidence in Energy Vault’s ability to execute large‑scale storage projects and transition to a recurring‑revenue model. The company’s recent cash infusion and the successful start of construction reinforce its financial position and strategic trajectory.
The SOSA Energy Center’s construction start underscores Energy Vault’s commitment to expanding its storage footprint in the ERCOT North market, a region with robust renewable energy integration. By delivering a high‑capacity, grid‑scale solution, the company positions itself to capture growing demand for grid stability and renewable curtailment mitigation in Texas.
The announcement also signals to the market that Energy Vault is moving beyond prototype and pilot projects toward full‑scale, revenue‑generating assets, a shift that could materially impact the company’s long‑term profitability and valuation.
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