GWH News & Events

ESS Tech has engaged international investor relations specialists MZ Group to lead a comprehensive strategic investor relations and financial communications program across all key markets. MZ will work closely with ESS management to develop and implement a comprehensive capital markets strategy designed to increase the Company's visibility throughout the investment community. The campaign will highlight ESS's differentiated position in long-duration energy storage through its American-made iron flow technology, which utilizes earth-abundant iron, salt, and water rather than lithium and other critical minerals. ESS's solutions are designed to deliver safe, scalable, and sustainable long-duration energy storage for customers seeking greater reliability, domestic supply chain advantages, and lower total cost of ownership over a 25-year design life. As electricity demand accelerates, particularly from AI data centers, and as utilities seek long-duration storage to support baseload reliability when solar and wind are not producing, ESS believes its gigawatt-scale flagship platform Energy Base is well positioned to address a growing market need.

"The fourth quarter of 2025 and 2026 to date has seen the Company make continued progress in advancing our proprietary LDES and strengthening ESS for the next phase of execution," said Drew Buckley, Chief Executive Officer of ESS. "We have taken decisive steps to reinforce leadership, governance, and financial discipline in support of long-term value creation, including a leadership and organizational reset that more closely aligns management and board oversight around execution and capital allocation. We also expanded our commercial capabilities through the acquisition of VoltStorage GmbH's intellectual property and asset base, an iron-salt battery company, adding experienced personnel and strengthening our ability to execute our go-to-market priorities. We are also seeing a supportive macro backdrop for LDES, as rising electricity demand and increasing grid reliability requirements are driving greater urgency for resilient, long-duration solutions. Commercial momentum was highlighted by a $9.9 million award supporting deployment of up to 27 MWh of American-made LDES at U.S. military installations, and by Google's recently announced participation in Project New Horizon as we advance the project toward manufacturing in 2026. With three tier 1 foundational projects expected to begin delivery in 2027, we are focused on executing across our pipeline as projects move to delivery and commissioning."

ESS Tech (GWH) announced a collaboration framework with Salt River Project and Google (GOOG) for Project New Horizon to advance energy storage at SRP's Copper Crossing Energy and Research Center in Florence, Arizona. Project New Horizon is a five-megawatt, 50 megawatt hour system that will deploy ESS' iron flow Energy Base technology and represents a significant commercial validation milestone for the company's utility-scale platform. The pilot is expected to support SRP's evaluation of emerging non-lithium LDES technologies.