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GSL Commercial & Industrial Energy Storage Systems

OEM/ODM Factory Since 2011. Certified Lithium Battery Storage Manufacturer.

GSL Energy is dedicated to providing comprehensive solar PV energy storage solutions tailored for the European market. Our systems are widely applied in rural agriculture, manufacturing zones, commercial and logistics centers, residential communities, Schools, hospitals, government and municipal facilities, Telecom base stations,EV charging infrastructure, and remote mountain areas. We help clients achieve energy independence, cost optimization, and sustainable power management through reliable and efficient battery storage systems.

OEM & ODM Custom

Flexible design and manufacturing support for brand partners and project-based customization. Your solution, your brand—backed by GSL’s expertise.

One-Stop ESS Solutions

From battery cells to complete ESS systems, GSL provides integrated solutions for home, C&I, microgrid, EV charging, and telecom backup

Global Certifications

Certified by UL1973, UL9540A, IEC62133, IEC62619, CE, CEI 0-21, UN38.3, MSDS, and more—ensuring compliance and safety across global markets.

Factory Direct Supply

We operate a 15,000㎡ automated factory with 15+ years of production experience, offering competitive prices, stable quality, and fast delivery from the source.

Industrial and commercial savings system products

GSL Energy offers high-performance lithium battery storage, solar battery systems, and complete energy storage system (ESS/BESS) solutions tailored for commercial, industrial, and utility-scale applications. Whether you need a scalable battery energy storage system for solar projects or a robust solar electric battery storage setup for off-grid operations, our factory-direct products meet global certifications (UL1973, UL9540A, CE, IEC62619) and support OEM/ODM customization. Empower your business with reliable, long-lasting energy storage solutions—engineered for performance, safety, and flexibility.

High Voltage Mini C&I ESS – 80kVA / 261kWh Liquid-Cooling Integrated Energy Storage Cabinet

125kW 418kWh Liquid-Cooled BESS | Commercial Solar Battery Storage System Manufacturer

125kVA / 241kWh All-in-One Commercial & Industrial BESS,High-Capacity Battery Energy Storage System for C&I Applications

GSL Energy 125kW/261kWh All-in-One High-Voltage Liquid-Cooled Commercial and Industrial Energy Storage System Solution

Global Project Cases in Energy Storage Systems

GSL Energy provides advanced commercial and industrial energy storage solutions to optimize power management, reduce electricity costs, and enhance energy independence across Europe. Our high-performance BESS systems, ranging from 30 kWh to over 5 MWh, deliver reliable and scalable energy storage solutions for various applications, including factories, microgrids, solar farms, and commercial buildings. Explore our global installation cases to see how our cutting-edge lithium battery storage systems drive the transition to renewable energy in Europe. Designed for peak shaving, demand response, and backup power, our solutions help businesses in Europe efficiently manage their energy needs, reduce carbon footprints, and meet sustainability goals.

250kW/600kWh ESS in Ukraine Industrial Park

Empowering industrial operations with reliable energy storage and peak load management by GSL Energy.

On February 8, 2025, a Ukrainian manufacturing facility successfully installed a 250kW/600kWh battery energy storage system (BESS), designed by GSL Energy, a leading lithium battery storage manufacturer. This industrial energy storage system was implemented to optimize electricity usage, manage peak load demands, and reduce operational energy costs.

Engineered for commercial and industrial (C&I) energy storage applications, the solar-compatible ESS supports grid independence and enhances power reliability. Featuring CE/IEC-certified energy storage batteries, this project showcases GSL’s ability to deliver customized energy storage solutions across Eastern Europe.

Industrial and commercial energy storage system

Customized 480kWh C&I BESS Installed in Slovenia for Agricultural Use

480kWh C&I Battery Energy Storage System in Slovenia

GSL Energy delivered 6 units of 80kWh mini BESS, custom-OEM designed to provide stable and efficient power for agricultural operations.

GSL Energy delivered a 480kWh OEM commercial and industrial battery energy storage system (BESS) for a farm in Slovenia. The system includes six 80kWh lithium battery storage units, designed for solar and off-grid applications. Built with LiFePO₄ batteries and a smart battery management system (BMS), it ensures stable power, long lifespan, and energy cost savings. This C&I energy storage solution demonstrates GSL’s strength in customized ESS for agriculture and industrial needs.

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