On June 3, 2026, HiTHIUM, a global frontrunner in energy storage solutions and services, presented the world’s first 8-hour-native long-duration energy storage (LDES) system, the ∞Power 6.9MWh energy storage system (ESS), at SNEC 2026. The company also launched its new ∞Cell 650Ah high-capacity energy storage battery and the ∞Power 10+MWh product solution.

As renewable energy capacity continues to grow worldwide, storage duration is rapidly shifting from the traditional 2–3 hours toward 4–8 hours. LDES is playing an increasingly vital role in integrating renewables, strengthening grid flexibility and resilience, and maintaining safe, stable power system operations.

To answer the LDES era’s call for cost efficiency, safety, reliability, and large-scale delivery, HiTHIUM has built a complete technology system that spans dedicated battery cells and integrated ESS solutions, underpinned by its core strengths in cost leadership, service excellence, and safety and reliability.

Purpose-Built for 8 Hours, Redefining LDES Value Benchmarks

At the event, the HiTHIUM team shared insights on LDES trends and product breakthroughs. During a keynote titled “Long-Duration Powering, Green Energy Enduring: Ultra-Long-Duration Energy Storage System Solutions and New Product Debut,” Ye Zi, Product Director at HiTHIUM, highlighted that with deepening renewable penetration, more frequent extreme weather, an intensifying “duck curve,” and mounting grid stability pressures, LDES is emerging as essential new infrastructure for power system security.

To tackle key industry challenges, HiTHIUM introduced the ∞Power 6.9MWh 8-hour LDES system. Powered by the world’s first 1300Ah battery cell dedicated specifically to LDES, the system is engineered natively at the cell level to deliver over 6.9MWh of capacity and stable 8-hour output within a standard 20-foot container. With a design life of up to 25 years, it supports side-by-side and back-to-back deployment, helping to reduce land use and construction costs. The system also incorporates environmentally friendly innovations such as low-GWP coolant, leakage-prevention design, and recyclable structural components. For safety, HiTHIUM has developed a multi-layer protection architecture that covers intrinsic cell safety, active and passive protection at the battery container level, and intelligent BMS management.

New ∞Cell 650Ah Makes Its Debut

Another highlight was the unveiling of HiTHIUM’s ∞Cell 650Ah large-capacity energy storage battery and the ∞Power 10+MWh product solution. Drawing on strong R&D capabilities in both cells and ESS solutions, HiTHIUM continues to upgrade its portfolio with customer value at the center. The new products enrich the company’s large-capacity battery and system offerings, enhancing overall project returns through higher energy density and greater system integration efficiency, while delivering more choices for diverse application scenarios and bolstering global competitiveness.

In addition, HiTHIUM displayed its full-scenario portfolio, including the ∞Cell 1300Ah, 1175Ah, and 587Ah battery cells; the ∞Power 6.25MWh 2–4h ESS; the ∞Cell N162Ah and ∞Power N2.28 MWh 1h sodium-ion ESS; the ∞Block 261kWh and 418kWh commercial and industrial energy storage cabinets; and residential energy storage products such as the HeroEE MaxPower 8 AIO and HeroEE16.

Deepening Southeast Asia Presence with 1GWh Strategic Cooperation in Vietnam

During the exhibition, HiTHIUM and DSS Solar signed a three-year, 1GWh strategic cooperation agreement focused on Vietnam’s residential, commercial, and industrial energy storage markets. The partnership brings together HiTHIUM’s strengths in product solutions, advanced manufacturing, and supply chain capabilities with DSS Solar’s local channels and project development services, aiming to promote scaled deployment in Vietnam and support the region’s energy transition and green development.

Built on a dual technology roadmap of lithium-ion and sodium-ion batteries, HiTHIUM has established a complete product matrix covering 1- to 8-hour applications. Moving forward, HiTHIUM will maintain a strategic focus on LDES, driving innovation and global expansion to accelerate large-scale deployment and support the worldwide green energy transition.