ESS Tech Signs $9.9M Contract with U.S. Air Force
ESS Tech announced the execution of a $9.9M contract with Concurrent Technologies Corporation and the United States Air Force Research Laboratory for a large capacity energy storage system at the U.S. Clear Space Force Station in Alaska. Under the contract, ESS will deploy up to 27 MWh of its American-made iron flow battery systems to support operations at Clear Space Force Station. "This project is a significant validation of ESS battery technology and its ability to provide reliable energy every day and support grid resiliency when it matters most," said Drew Buckley, CEO of ESS. "The Department of Defense is actively seeking long duration resilient microgrids to improve readiness, with a keen interest in 'Made in USA' software and systems to reduce risk of foreign cyber security vulnerabilities. We believe this award will further unlock long duration storage opportunities with the DoD and the growing microgrid market."
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ESS Secures $9.9 Million Contract with U.S. Air Force for Energy Storage System
- Contract Value: ESS has signed a $9.9 million contract with the U.S. Air Force Research Laboratory to deploy 27 MWh of iron flow battery systems at the Clear Space Force Station in Alaska, showcasing the company's strong position in military energy storage.
- Technology Application: This project aims to demonstrate emerging advanced energy storage technologies, with ESS's iron flow batteries providing reliable power in extreme conditions (below -40°C), enhancing the company's competitiveness in the military market by ensuring continuous operation of critical missions.
- Market Potential: As the Department of Defense seeks long-duration resilient microgrids, ESS's technology is seen as key to reducing cybersecurity risks, which is expected to unlock further long-term storage opportunities with the DoD and drive future growth for the company.
- Strategic Partnership: The collaboration with Concurrent Technologies Corporation will enhance the stability of power supply at the Clear Space Force Station, ensuring rapid recovery during grid instability, reflecting the strategic importance of ESS in critical infrastructure sectors.

ESS Tech Announces $15 Million Direct Offering
- Financing Size: ESS Tech has entered into agreements with institutional investors for a direct offering of approximately $15 million, priced at $1.75 per share, reflecting market confidence in the company's future prospects as it exceeds the closing price on January 28, 2026.
- Share Count: The offering consists of 8,571,428 shares of Common Stock or Pre-Funded Warrants, with the latter being immediately exercisable, which is expected to provide the company with ample liquidity to support its operations and growth.
- Use of Proceeds: The company plans to utilize the net proceeds from this offering, combined with existing cash, for general corporate purposes and working capital, aiming to enhance its competitiveness in the long-duration energy storage market.
- Transaction Arrangement: The transaction is expected to close on or about January 30, 2026, subject to customary closing conditions, with Aegis Capital Corp. acting as the exclusive placement agent to ensure the smooth execution of the deal.






