With the rapid growth of the renewable energy market, solar energy storage systems are becoming increasingly mainstream.      OEM (Original Equipment Manufacturer) companies play a vital role by providing customized and integrated energy storage solutions, helping various industries achieve energy independence and reduce carbon emissions.    Among them, GSL Energy stands out for its strong OEM/ODM customization capabilities and reliable lithium battery technologies.

GSL Energy's OEM Capabilities

1.      Customized Energy Storage Systems

GSL Energy specializes in offering comprehensive OEM/ODM services, ranging from battery cells and modules to complete energy storage systems (ESS), tailored for residential, commercial, industrial, microgrid, and electric vehicle (EV) charging applications.

2.      Global Certifications and Application Scenarios

GSL Energy's products are certified to meet international standards such as UL-1973, UL-9540A, IEC62133, CEI 0-16, IEC62219, CE, UN38.3, and MSDS.

They are widely deployed across Europe, North America, Australia, and Italy. Such as global regions, serving various sectors including: Agriculture, Warehousing and logistics, Educational institutions, Hospitals, Remote telecommunications, Farms, and supermarkets.

3.      Flexible Customization

GSL Energy supports flexible product development, including: Custom logos, Tailored exterior designs, Internal structural modifications, Software customization for EMS/BMS systems

Flagship Projects by GSL Energy

1000 kWh / 250 kVA Containerized ESS

Configuration: 1000 kWh LiFePO₄ batteries + 250 kVA PCS in a 40-foot standard container

Highlights: High energy density, highly integrated, scalable design — ideal for solar energy storage in commercial and microgrid projects

250kW/600kWh Industrial Energy Storage System in Ukraine

Configuration: LiFePO₄ battery + hybrid inverter

Other Solutions Include:

125 kW / 232 kWh liquid-cooled ESS cabinets

20–60 kWh modular energy storage systems

EV charging storage cabinets

Wall-mounted and rack-mounted high-voltage ESS

Global Reach and Market Recognition

Project Deployments

Since 2011, GSL Energy has successfully launched OEM projects worldwide, including wall-mounted battery systems in Jamaica and Puerto Rico. Customer feedback highlights a cycle life of up to 6500–8500 cycles, along with full warranty and after-sales support.

R&D and Production Capacity

Established: 2011

Headquarters: Shenzhen

R&D Base: Huizhou

Production Capacity: Over 5.8 GWh/year via automated production lines

Market Presence: Exported to over 138 countries

Team Size: 200+ employees, including a 25-person R&D team

Competitive Advantages vs. Other OEM Players

 Although there are many manufacturers in the Energy storage industry, GSL Energy still has unique advantages:

Strong Customization Capabilities: Fully tailored OEM/ODM solutions for brands and integrators

Comprehensive Certifications: UL, CE, IEC, CEI for global market access

Modular Flexibility: From 5 kWh residential systems to multi-MWh commercial ESS

Proven Global Experience: Deployed in extreme climates — from Northern Europe to tropical islands

Market Trends and Partnership Opportunities

Growth Outlook

The global demand for energy storage is surging, with double-digit annual growth expected in both residential and commercial sectors.      OEM solutions are in high demand among brands, EPCs, and energy solution providers.

Technology Trends

Modular and scalable ESS

Liquid cooling systems

Smart BMS and EMS

Hybrid inverter integration

Cooperation Advice

Partnering with GSL Energy allows companies to quickly launch branded, high-quality storage systems using GSL's turnkey OEM/ODM capabilities.

As a full-stack OEM provider with robust R&D, global certifications, advanced manufacturing, and successful project experience, GSL Energy has proven its leadership in solar energy storage. Its ability to deliver customized, modular, and certified energy storage products makes it a trusted OEM partner for global energy brands.