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UL Certified BESS & ESS Energy Storage System Manufacturer

Commercial & Residential Battery Storage Solutions for USA & Canada

GSL Energy is a global battery energy storage system manufacturer specializing in UL-certified BESS systems, commercial solar batteries, industrial batteries, and residential ESS solutions for North American markets. We provide factory-direct energy storage solutions ranging from 5kWh solar battery systems for home backup to 5MWh battery containerized BESS systems for commercial, industrial, utility-scale, and microgrid applications. Our solutions are widely used in the United States and Canada for peak shaving, backup power, solar energy storage, demand response, and microgrid applications.

UL Certified 10kWh–60kWh Commercial & Industrial Air-Cooling BESS Battery System

UL Certified 14.34kWh / 16.08kWh Home Battery Storage System Manufacturer

UL Certified 14.34kWh Wall-Mounted Energy Storage Battery Manufacturer | OEM/ODM Solar Battery

Why Choose GSL Energy

Factory Direct Battery Energy Storage Manufacturer

GSL Energy is a trusted lithium battery company and solar battery manufacturer serving global energy storage markets.

Proven Track Record Since 2011

With over a decade in the industry, GSL ENERGY has delivered more than 4500 successful energy storage systems across 100+ countries, supporting homes, factories, schools, telecom sites, and utility-scale projects.

Manufacturer, Quality First

Our 15,000㎡ smart factory integrates automated production lines and strict quality control. From lithium battery cells to complete BESS battery energy solutions, every product is tested and certified for safety and performance.

Global Certifications

GSL batteries meet international safety and compliance standards, including:
UL9540, UL1973, CE, CB, UN38.3, IEC62619, and more.

Full Customization

Whether it's a compact home battery backup or a multi-MWh industrial containerized system, we offer complete OEM / ODM / OBM services to tailor solutions to your specifications.

FAQ – UL Certified BESS Systems

Is your battery UL certified?

Yes, our lithium battery systems comply with UL9540, UL9540A, and UL1973 standards.

Do you support OEM customization?

Yes, we provide OEM and ODM energy storage system solutions

What is the difference between commercial and residential ESS?

Commercial ESS is used for industrial-scale energy storage, while residential ESS is for home backup and solar storage.

Do you offer OEM/ODM customization?

Yes, GSL ENERGY supports OEM, ODM, and OBM for global partners. We can customize voltage, capacity, enclosure design, interface, and branding.

What applications are your commercial solar batteries suitable for?

Our commercial solar batteries are suitable for peak shaving, backup power, microgrids, demand response, solar energy storage, and utility-scale battery projects.

Do you provide engineering support?

Yes. GSL Energy provides professional ESS engineering support, technical consultation, and project integration assistance.

Global Energy Storage Project Experience

GSL Energy's residential and commercial & industrial energy storage solutions are widely recognized in global markets for their high reliability, stable performance, and scalable architecture. Our energy storage systems are deployed across diverse application scenarios, including residential backup power, commercial facilities, industrial operations, telecom infrastructure, and public utility networks.

With a strong track record of project execution and manufacturing capability, GSL Energy delivers end-to-end ESS solutions that support energy optimization, grid resilience, and long-term operational efficiency for customers worldwide.