5MWH Commercial Industrial Lithium Battery Energy Storage System OEM/ODM

Green State Energy has recently successfully completed the manufacture and assembly of a 5 MWh liquid-cooled battery energy storage system (BESS). The unit is fully assembled and ready to be shipped to Eastern Europe, where it will soon go through on-site commissioning and start helping with renewable energy integration and grid stability.

We captured the whole process inside our standard manufacturing facility – from precision battery module installation to full system integration and factory acceptance testing (FAT). It's a real look at how we handle energy storage production from start to finish.

The system uses a modular, containerized design, making it quick to deploy and easy for EPC contractors and energy developers to install.

Key highlights from the production process include:

• LiFePO4 battery cells-safe and long-lasting
• Liquid cooling battery packs- precisely installed for better thermal management
• Smart BMS & EMS integration- real-time monitoring and system optimization
• Factory acceptance testing (FAT) – ensures performance before delivery

Every step follows international standards like IEC 62619, CE, and UN 38.3 – something we take seriously at GSL.

This 5MWh system is designed to perform well in Eastern Europe's often challenging climate conditions.

With an advanced liquid cooling thermal management system, the BESS ensures:

• Stable operation across wide temperature ranges
• Enhanced system lifespan and performance consistency
• Reduced thermal risks and improved safety

Furthermore, the system supports parallel expansion, so it can easily scale up for future industrial, commercial, or utility-scale needs.

Once deployed, the system will play a key role in supporting regional energy infrastructure, specifically through:

• Peak shaving and load shifting to reduce electricity costs
• Grid frequency regulation to enhance stability
• Renewable energy integration (solar + storage)
• Backup power support for critical operations

These capabilities help improve energy efficiency, enhance the grid's resilience to disasters, and accelerate the adoption of clean energy in Eastern Europe.

From in-house R&D and precision manufacturing to system integration and worldwide delivery, GSL Energy offers a complete energy storage solution tailored for EPC contractors, distributors, and project developers.

With over 15 years of experience in energy storage manufacturing, Green State continue to provide:

• Proven global project experience (USA, Europe, Southeast Asia, Middle East)
• OEM/ODM/OMB customization services
• Certified, reliable lithium battery solutions
• Scalable systems from kWh to MWh levels

Green State Energy is a leading manufacturer of LiFePO4 batteries and energy storage systems, serving residential, commercial, and utility-scale markets. We're committed to a sustainable energy future through innovation, quality manufacturing, and solid project delivery around the world.