ESS Tech, Inc. (GWH)
| Market Cap | 24.98M |
| Revenue (ttm) | 1.11M |
| Net Income (ttm) | -61.34M |
| Shares Out | 29.39M |
| EPS (ttm) | -3.24 |
| PE Ratio | n/a |
| Forward PE | n/a |
| Dividend | n/a |
| Ex-Dividend Date | n/a |
| Volume | 813,797 |
| Open | 0.757 |
| Previous Close | 0.764 |
| Day's Range | 0.730 - 0.869 |
| 52-Week Range | 0.565 - 13.870 |
| Beta | 1.42 |
| Analysts | n/a |
| Price Target | n/a |
| Earnings Date | Aug 13, 2026 |
About GWH
ESS Tech, Inc., an energy storage company, engages in the design and production of iron flow batteries for commercial and utility-scale energy storage applications worldwide. It offers energy storage products, which include Energy Warehouse, a behind-the-meter solution; and the gigawatt-hour energy base storage product, a fully configurable layout that integrates with any site location and that allows the power to be decoupled from the capacity. The company was founded in 2011 and is headquartered in Wilsonville, Oregon. [Read more]
Financial Performance
In 2025, ESS Tech's revenue was $1.58 million, a decrease of -74.85% compared to the previous year's $6.30 million. Losses were -$63.44 million, -26.42% less than in 2024.
Financial StatementsNews
ESS to Accelerate Sodium-Ion Battery Energy Storage System Development Following Surging Customer Interest
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS to Accelerate Sodium-Ion Battery Energy Storage System Development Following Surging Customer Interest.
ESS Tech Transcript: AGM 2026
The meeting covered director elections, auditor ratification, and executive compensation, with all proposals approved. No questions were raised by stockholders, and forward-looking risks were referenced in SEC filings.
ESS Tech Transcript: Sidoti Micro-Cap Virtual Conference
Iron flow battery technology targets long-duration storage needs for utilities and hyperscalers, offering cost and performance advantages over lithium-ion for 10–24 hour applications. Major contracts with Google, SRP, and the U.S. Air Force are set for delivery in 2027–2028, with a focus on commercialization and financial discipline.
ESS to Attend Sidoti Micro-Cap Virtual Conference on May 20, 2026
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS to Attend Sidoti Micro-Cap Virtual Conference on May 20, 2026.
ESS Tech Earnings Call Transcript: Q1 2026
Q1 2026 saw improved cost discipline, a narrowed net loss, and strategic moves including a partnership with Alsym Energy, VoltStorage acquisition, and major project wins. Technology validation and a strengthened balance sheet position the company for broader market opportunities.
ESS Tech Slides: Q1 2026
ESS Tech has posted slides in relation to its Q1 2026 quarterly earnings report, which was published on May 7, 2026.
ESS Tech Quarterly report: Q1 2026
ESS Tech has published its Q1 2026 quarterly earnings report on May 7, 2026.
ESS Tech Earnings release: Q1 2026
ESS Tech released its Q1 2026 earnings on May 7, 2026, summarizing the period's financial results.
ESS Tech, Inc. Announces First Quarter 2026 Financial Results
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Tech, Inc. Announces First Quarter 2026 Financial Results.
ESS Highlights Third-Party Utility Validating Iron Flow Battery Technology
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Highlights Third-Party Utility Validating Iron Flow Battery Technology.
ESS Announces Successful Commissioning of Long-Duration Iron Flow Battery Systems at Turlock Irrigation District Solar-Over-Canal Project
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Announces Successful Commissioning of Long-Duration Iron Flow Battery Systems at Turlock Irrigation District Solar-Over-Canal Project.
ESS Partners with Alsym Energy to Deliver 8.5 GWh of Non-Lithium Battery Energy Storage Solutions
WILSONVILLE, Ore. & MALDEN, Mass.--(BUSINESS WIRE)--ESS Tech, Inc. (NYSE: GWH) ("ESS" or the "Company"), a leading manufacturer of sustainable, long‑duration energy storage systems (“LDES”), today ann...
ESS to Host First Quarter 2026 Financial Results Conference Call on Thursday, May 7, 2026 at 5:00 p.m. Eastern Time
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS to Host First Quarter 2026 Financial Results Conference Call on Thursday, May 7, 2026 at 5:00 p.m. Eastern Time.
ESS Tech Proxy statement: Proxy filing
ESS Tech filed a proxy statement on April 15, 2026, providing details for shareholder voting and corporate governance matters.
ESS Tech Proxy statement: Proxy filing
ESS Tech filed a proxy statement on April 15, 2026, providing details for shareholder voting and corporate governance matters.
ESS Engages MZ Group to Lead Strategic Investor Relations and Shareholder Communications Program
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Engages MZ Group to Lead Strategic Investor Relations and Shareholder Communications Program.
ESS to Attend the 38th Annual ROTH Conference
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS to Attend the 38th Annual ROTH Conference.
ESS Tech Earnings Call Transcript: Q4 2025
2025 saw a strategic pivot to the Energy Base product, improved financials, and major contracts with the U.S. Air Force and SRP, with Google as an offtaker. Revenue is expected to ramp in 2027-2028 as deliveries begin, supported by a strengthened balance sheet.
ESS Tech Annual report: Q4 2025
ESS Tech has published its Q4 2025 annual report on March 5, 2026.
ESS Tech Earnings release: Q4 2025
ESS Tech released its Q4 2025 earnings on March 5, 2026, summarizing the period's financial results.
ESS Tech Slides: Q4 2025
ESS Tech has posted slides in relation to its Q4 2025 quarterly earnings report, which was published on March 5, 2026.
ESS Announces Fourth Quarter and Full Year 2025 Financial Results
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Announces Fourth Quarter and Full Year 2025 Financial Results.
ESS Announces Agreement to Join Salt River Project and Google Long Duration Energy Storage Collaboration
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Announces Agreement to Join Salt River Project and Google Long Duration Energy Storage Collaboration.
ESS Appoints Randall Selesky as Chief Commercial Officer to Accelerate Global Growth
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Appoints Randall Selesky as Chief Commercial Officer to Accelerate Global Growth.
ESS Acquires VoltStorage GmbH Intellectual Property and Assets to Advance Flexible Long-Duration Energy Storage
WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Acquires VoltStorage GmbH Intellectual Property and Assets to Advance Flexible Long-Duration Energy Storage.