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
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.