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. (NYSE: GWH) regularly issues news and updates about its long-duration iron flow energy storage systems and corporate developments. As a manufacturer focused on commercial- and utility-scale applications, ESS uses press releases to report on project announcements, technical milestones, leadership changes and financing activities that shape its business trajectory.
Company news often highlights project wins and pilot deployments. For example, ESS has announced a 50 MWh Energy Base pilot project with Salt River Project in Arizona and an 8 MWh Energy Base order aligned with its 10+ hour product focus. These announcements illustrate how its iron flow technology is being applied in real-world grid and utility contexts.
ESS also publishes financial results and capital transactions through quarterly earnings releases and related communications. Recent updates have covered second and third quarter financial results, insider-led funding measures totaling tens of millions of dollars, a promissory note with an investment fund managed by Yorkville Advisors Global, and the launch of a $75 million at-the-market equity program under a Sales Agreement with multiple agents.
Another key theme in ESS news is technical and operational progress. The company has reported achieving 12.2 hours of duration at rated power and 17.8 hours at reduced power for its technology, along with improvements in round-trip efficiency and material costs. It has also discussed a strategic reset focused on the Energy Base platform, operational efficiency and reduced cash requirements.
Leadership updates appear in ESS news as well, including the appointment of a new Chief Executive Officer, Chief Strategy Officer and General Counsel, Chief Financial Officer and Chief Operating Officer. Investors and observers can follow this news feed to see how ESS is executing its strategy in long-duration energy storage, advancing projects, and managing its capital structure over time.
ESS Tech (NYSE: GWH) reported Q1 2026 results and business updates on May 7, 2026. Key developments include a 5 MW/50 MWh Project New Horizon collaboration with Salt River Project and Google, a $9.9 million AFRL contract for up to 27 MWh, acquisition of VoltStorage assets, two commissioned systems at TID, and strengthened liquidity of $21.5 million.
Q1 revenue was $128,000; net loss was $(15.9) million and adjusted EBITDA loss improved 31% year-over-year.
ESS Tech (NYSE: GWH) highlighted a final report from Burbank Water and Power and APPA documenting a 21-month demonstration of an ESS Energy Warehouse iron flow battery co-located with solar.
The report concluded the system was installed, energized, operated successfully, and that iron, salt, and water chemistry is non-flammable, sustainable, and domestically manufacturable.
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.