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HiTHIUM Unveils 8-Hour Energy Storage System at SNEC 2026, Expands Southeast Asia Push with Vietnam Deal

HiTHIUM introduced its ∞Power 6.9MWh BESS, designed specifically for eight-hour applications and powered by a newly developed 1300Ah battery cell.

June 05, 2026. By Abha Rustagi

Chinese energy storage company HiTHIUM has unveiled what it says is the world's first native 8-hour long-duration energy storage (LDES) system at the SNEC 2026 exhibition, as growing renewable energy deployment drives demand for longer-duration battery storage solutions.

The company introduced its ∞Power 6.9 MWh battery energy storage system (BESS), designed specifically for eight-hour applications and powered by a newly developed 1300Ah battery cell. HiTHIUM said the system delivers more than 6.9 MWh of capacity from a standard 20-foot container and is designed to operate for up to 25 years.

The launch comes as utilities and grid operators increasingly seek energy storage systems capable of delivering power for four to eight hours, compared with the traditional two- to three-hour duration widely deployed today. Longer-duration storage is viewed as critical for integrating higher levels of renewable energy, improving grid resilience, and managing fluctuations in electricity demand.

At the exhibition, the HiTHIUM team delivered presentations on LDES trends and product innovation. In a keynote speech titled ‘Long-Duration Powering, Green Energy Enduring: Ultra-Long-Duration Energy Storage System Solutions and New Product Debut,’ Kay Ye, HiTHIUM's Product Director, noted that amid rising renewable energy penetration, more frequent extreme weather, an intensifying "duck curve" and growing grid stability pressure, LDES is emerging as new infrastructure for power system security.

The company said the new system incorporates safety features including multi-layer protection mechanisms, intelligent battery management systems and environmentally focused design elements such as low global warming potential (GWP) coolants and recyclable structural components.

HiTHIUM also unveiled its new ∞Cell 650Ah large-capacity battery and an accompanying ∞Power 10+MWh energy storage solution, expanding its portfolio of large-format batteries aimed at improving energy density and system integration efficiency.

The company showcased a range of products covering applications from one to eight hours, including lithium-ion and sodium-ion battery technologies. Its lineup includes the ∞Power 6.25 MWh system for two- to four-hour storage applications, sodium-ion-based storage products, commercial and industrial storage cabinets, and residential energy storage systems.

Separately, HiTHIUM signed a three-year strategic cooperation agreement with Vietnam-based DSS Solar covering 1 GWh of energy storage deployments in Vietnam's residential, commercial and industrial sectors.

The agreement combines HiTHIUM's manufacturing and energy storage technologies with DSS Solar's local distribution network and project development capabilities, aiming to accelerate adoption of battery storage systems in Vietnam and support the country's energy transition goals.

With a dual technology strategy spanning lithium-ion and sodium-ion batteries, HiTHIUM said it plans to continue prioritising long-duration energy storage as part of its global expansion efforts.

Tags:

Energy Storage

HiTHIUM Energy Storage Technology

Long duration storage technology

BESS

Renewable energy development

DSS Solar

Vietnam