Small energy storage system (under MW level)

The battery energy storage system (BESS) containers are based on a modular design. They can be configured to match the required power and capacity requirements of client’s application. The battery energy storage systems are based on standard sea freight containers starting from kW/kWh (single container) up to MW/MWh (combining multiple containers). The containerised energy storage system allows fast installation, safe operation and controlled environmental conditions
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Battery energy storage system container, BESS Container


The battery energy storage system (BESS) containers are based on a modular design. They can be configured to match the required power and capacity requirements of client’s application. The battery energy storage systems are based on standard sea freight containers starting from kW/kWh (single container) up to MW/MWh (combining multiple containers). The containerised energy storage system allows fast installation, safe operation and controlled environmental conditions.

The energy storage system (BESS) containers are designed for neighbourhoods, public buildings, medium to large businesses and utility scale storage systems, weak- or off-grid, e-mobility or as backup systems. The energy storage system containers make it possible to store the energy produced by photovoltaics, wind turbines, or CHP. Due to its high cycle lifetime, The energy storage system containers are also used for peak-shaving, thereby reducing the electricity bill.

Our containerised energy storage system (BESS) is the perfect solution for large-scale energy storage projects. The energy storage containers can be used in the integration of various storage technologies and for different purposes.

All our containerised solutions are designed to meet the most demanding specifications and can to cope with all kinds of adverse conditions.

In the case of storage in batteries the container are mechanically adapted to integrate the air conditioning equipment that allows energy storage according to the project. These solutions provide greater flexibility and robustness to renewable power production systems.


Technical parameter

Technical parameter
Rated power50KW  
Rated Capacity150KWh  
DC voltage range500-850V 
System energy conversion efficiency≥88% 
Cycle life5000times,100%DOD
Anti-islanding reaction time 50ms 
Real-time power dynamic response time60ms 
Guarantee network inspection time20-40ms 
Balanced methodpassive equalization
Operating temperature25±5℃ 
Protection levelIP54 (container)
Container specification115 feet container


Hunan Voltai Green Energy Co.,Ltd (Abbr: Voltai) settled the base in Changsha city of Hunan Province in 2006. Through 17 years high-speed development, Voltai is the integrated supplier to meet the needs of many fields of micro-energy storage system by providing one-stop solution from R&D to production, from made in China to created in China. In the international market, Voltai has become a brand recognized by users in Southeast countries, and annual turnover reaches 600 million RMB. At present, Voltai has developed direct selling stores in over 90 countries , and has set up branch offices with showrooms.
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