Global energy storage solutions provider HiTHIUM has introduced what it describes as the world’s first native 8-hour long-duration energy storage (LDES) system, marking a significant advancement in renewable energy infrastructure. The company unveiled the new ∞Power 6.9MWh energy storage system (ESS) alongside its ∞Cell 650Ah large-capacity battery and ∞Power 10+MWh solution at SNEC 2026, one of the world’s leading clean energy exhibitions.
As renewable energy adoption accelerates worldwide, the need for longer-duration energy storage is becoming increasingly critical. Industry demand is shifting from traditional 2–3-hour storage systems toward solutions capable of delivering electricity for 4–8 hours, helping improve grid stability, renewable energy integration, and resilience during peak demand periods.
During the event, HiTHIUM executives highlighted the growing challenges facing power systems, including increased renewable penetration, extreme weather events, and grid reliability concerns. To address these issues, the company introduced the ∞Power 6.9MWh, an energy storage system powered by the world’s first 1300Ah battery cell specifically designed for long-duration applications.
The system delivers more than 6.9MWh of storage capacity and provides a stable 8-hour energy output within a standard 20-foot container. Designed for a lifespan of up to 25 years, the solution supports flexible deployment configurations that can reduce land requirements and construction costs for large-scale energy projects.
HiTHIUM also emphasized sustainability and safety features integrated into the new system, including low-global-warming-potential coolants, leak-prevention technology, recyclable structural components, and a multi-layer safety architecture supported by intelligent battery management systems.
Another major highlight was the debut of the ∞Cell 650Ah battery, designed to increase energy density and improve overall project economics. The company stated that the new battery and associated 10+MWh storage solution expand its portfolio of large-capacity energy storage products while offering greater flexibility across a range of applications.
Beyond product launches, HiTHIUM strengthened its presence in Southeast Asia by signing a three-year, 1GWh strategic cooperation agreement with Vietnam-based DSS Solar. The partnership aims to accelerate the deployment of residential, commercial, and industrial energy storage solutions in Vietnam and support the country’s clean energy transition.
With a dual technology strategy encompassing both lithium-ion and sodium-ion batteries, HiTHIUM now offers a comprehensive energy storage portfolio covering applications from one to eight hours. The company says it will continue prioritizing long-duration energy storage innovation as part of its commitment to supporting the global shift toward sustainable energy.
