Welcome to our dedicated page for Ess Tech news (Ticker: GWH), a resource for investors and traders seeking the latest updates and insights on Ess Tech stock.
ESS Tech, Inc. develops and manufactures long-duration energy storage systems based on iron flow battery technology for commercial and utility-scale applications. Company news centers on financial results, customer deployments and commissioning of LDES projects, third-party utility demonstrations, Energy Base development, and partnerships that expand non-lithium battery storage applications.
Updates also cover collaborations with utilities, public-sector customers and technology partners, the use of iron, salt and water in ESS battery chemistry, acquisitions that add intellectual property, and financing actions supporting commercialization and manufacturing execution.
ESS (NYSE: GWH) announced successful commissioning of two long-duration iron flow battery systems at Turlock Irrigation District's solar-over-canal project in California on May 5, 2026.
The project pairs ESS iron flow LDES with solar panels above irrigation canals to improve solar usability, support water-conservation goals, and demonstrate safe, long-duration storage using iron, salt and water.
ESS (NYSE: GWH) signed a letter of intent with Alsym Energy to add 8.5 GWh of sodium‑ion cells and modules, expanding ESS’s product suite into short‑ and medium‑duration battery energy storage systems (BESS). The Na‑Series sodium‑ion chemistry is described as non‑combustible, thermally stable, and designed to reduce HVAC and fire‑suppression needs. ESS positions the combined sodium‑ion and iron‑flow platforms as a unified, non‑lithium offering for utilities, IPPs, data centers, and C&I customers, aiming to cover durations from fast, high‑power cycling to 8–24 hour long‑duration storage.
ESS (NYSE: GWH) signed a letter of intent with Alsym Energy to add 8.5 GWh of sodium‑ion cells and modules, expanding ESS from long‑duration iron‑flow systems into short‑ and medium‑duration BESS.
The partnership pairs Alsym’s non‑combustible Na‑Series sodium‑ion technology with ESS’s Energy Base® platform to offer a full non‑lithium storage portfolio for utilities, IPPs, data centers, and C&I customers.
ESS Tech (NYSE: GWH) will hold a conference call on Thursday, May 7, 2026 at 5:00 p.m. ET to discuss first quarter 2026 results, commercial progress, customer deployments, and technology milestones. A press release and presentation will be posted prior to and after the call via investor relations.
ESS Tech (NYSE: GWH) engaged MZ Group to lead a strategic investor relations and shareholder communications program to increase capital markets visibility. Key milestones include a $9.9 million U.S. Air Force/CTC contract, a 50 MWh Energy Base pilot with Salt River Project and Google, VoltStorage IP acquisition, and strengthened capital via $40M financing, $8.6M ATM proceeds, and a $15M registered direct offering. The Wilsonville facility can produce ~560 MWh annually to support near-term flagship projects and commercial deployment targets through 2027.
ESS Tech (NYSE: GWH) will participate in the 38th Annual ROTH Conference March 22-24, 2026, at The Ritz-Carlton, Dana Point, CA. CEO Drew Buckley and CFO Kate Suhadolnik will hold in-person one-on-one investor meetings to discuss recent collaborations, an IP acquisition, and growth initiatives.
Investors may request meetings via ROTH representatives or by contacting GWH@mzgroup.us or calling the listed conference contact.
ESS Tech (NYSE:GWH) reported fourth-quarter and full-year 2025 results and strategic actions to strengthen execution and liquidity. Fiscal 2025 revenue was $1.6M and net loss was $63.4M. Adjusted EBITDA improved 38% to $(44.3)M and operating expenses fell 33% to $29.7M. Cash and short-term investments totaled $22.0M ($14.5M cash, $7.5M STI) as of December 31, 2025. Post-year financing included a $40M Yorkville facility, an $8.6M ATM, and a $15M registered direct raise in January 2026. The company acquired VoltStorage IP, won a $9.9M award for up to 27 MWh of U.S.-made LDES, and announced Google participation in Project New Horizon with manufacturing targeted in 2026 and delivery in December 2027.
ESS (NYSE:GWH) entered a collaboration with Salt River Project and Google for Project New Horizon, a 5 MW / 50 MWh pilot deploying ESS’s iron flow Energy Base at SRP’s Copper Crossing center in Florence, Arizona.
Design is underway, manufacturing is expected to begin in 2026, and delivery is targeted for December 2027. EPRI will provide independent oversight and Google will cost share portions of the project.
ESS (NYSE:GWH) appointed Randall Selesky as Chief Commercial Officer on February 19, 2026 to lead global commercial strategy, sales, marketing, product management, and business development.
Selesky brings more than 20 years in energy, including a decade in battery storage, and will focus on scaling deployments, sharpening execution, and expanding market presence for long-duration energy storage.
ESS Tech (NYSE: GWH) will host a conference call on Thursday, March 5, 2026 at 5:00 p.m. Eastern Time to discuss fourth-quarter and full-year 2025 results ended December 31, 2025.
CEO Drew Buckley and CFO Kate Suhadolnik will present results, organizational updates, commercial progress, customer deployments, and strategic priorities. A press release and presentation will be posted to the investor relations website prior to and after the call. Webcast and dial-in details are provided, and a telephone replay will be available through March 12, 2026.