GWH News & Events

Reports Q1 revenue $128,000 vs $600,000 last year. "The first quarter and second quarter to date reflect continued initiatives to reset ESS around execution, capital discipline, and scalable commercial opportunities," said Drew Buckley, Chief Executive Officer of ESS. "We continued to strengthen our leadership team, improve our financial position, and sharpen our operating focus as we advance into the Company's next phase. We advanced Project New Horizon with Salt River Project and Google, were awarded a $9.9 million contract with Concurrent Technologies Corporation ("CTC") and the United States Air Force Research Laboratory ("AFRL") for a large capacity energy storage system, recently announced our partnership with Alsym Energy, and added commercial leadership with the appointment of Randy Selesky as Chief Commercial Officer."

ESS Tech highlighted the findings of a final report issued in connection with Burbank Water and Power for the American Public Power Association to evaluate the application of ESS' Iron Flow Battery technology in a real-world utility environment. The report, prepared under the APPA's Demonstration of Energy & Efficiency Developments program, documented the installation, operation, and evaluation of an ESS Energy Warehouse system. According to the report, the system was successfully installed, energized, and operated through the 21-month project evaluation period co-located with a solar resource, with Burbank Water and Power concluding that ESS' Iron Flow Battery technology works and there is a place for this battery in a utility's overall energy storage strategy. "This project provides another example of how ESS iron flow technology can perform in an operating utility environment," said Drew Buckley, Chief Executive Officer of ESS. "Third-party demonstration projects like this are important because they show how the technology performs in real-world utility applications. The project helps validate the underlying strengths of our core technology, which carry through to our next generation Energy Base product: long-duration performance, a safe and non-flammable chemistry based on iron, salt and water, and the value of a solution manufactured in America as utilities look for durable energy storage alternatives to lithium-ion." The Burbank Water and Power final report noted several attributes of the system and underlying chemistry, including the use of iron, salt, and water, non-flammable and sustainable, easily sourced components, domestic manufacturing, and a projected long operating life. The report also stated that utility personnel were successfully trained on operation and maintenance of the system and that the project supported broader education and engagement around iron flow battery technology.

ESS Tech announced the successful commissioning of two ESS iron flow battery systems at Turlock Irrigation District in California's Central Valley. The project pairs ESS iron flow battery technology with solar panels installed above active irrigation canals, an innovative configuration designed to generate renewable electricity while helping reduce water evaporation. ESS believes the project demonstrates the ability of long-duration iron flow battery technology to support critical infrastructure applications where reliability, safety and flexible energy dispatch are important.

ESS Tech announced the signing of a letter of intent for a strategic partnership with Alsym Energy, a pioneer in non-flammable, high-performance sodium-ion batteries, to add 8.5 GWh of sodium-ion cells and modules to its portfolio. This next-generation battery solution is designed to address use cases traditionally served by lithium-ion systems - and those where lithium cannot go - but without the inherent thermal run-away risks associated with lithium chemistries. This partnership marks ESS's entry into the short- and medium-duration BESS segment, a market historically dominated by lithium-ion. It meaningfully expands the Company's addressable market beyond its established position in long-duration storage. The Alsym sodium-ion technology virtually eliminates thermal runaway risk and lowers total cost of ownership. In addition, the solution does not require complex HVAC systems, demonstrates high round trip efficiency, employs fast charge and discharge capabilities and offers a simpler, safer deployment profile for customers seeking superior stationary storage solutions.