• Containerized Energy Storage System

Designed for EPCs, Developers & Utility-Scale Projects 

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Case Studies

• China – User-Side Cost Optimization for High-Energy-Consumption Industry

Cutting Costs for High-Energy Industry

• Power on-site loads directly with PV generation
• Store excess PV for night time/peak-hour use
• Use peak-valley price differences for arbitrage

Scale:  >120MWh, Deployed across multiple cement plants

• Zimbabwe – User-Side Microgrid Solution

Strategy

Deploy an intelligent microgrid integrating PV, energy storage, diesel generator & grid interconnection modules. Prioritize solar power during the day, store excess energy, and use diesel as emergency backup.

Core Advantages

• Estimated daily energy savings: 80,000 kWh
• Estimated annual cost savings: $3 million
• Estimated payback period: <28 months

Scale

Phase 1: 12MWp PV + 3MW / 6MWh BESS

Phase 2: 9MW / 18MWh ESS

• Latvia – Grid-Side Frequency Regulation Solution

Operation Logic

• Receives AGC signals from the grid
• Rapidly adjusts charge/discharge to stabilize frequency and prevent grid damage

Core Value

• Supports stability of European power networks
• Meets strict response requirements of FCR/aFRR services

Scale：4.5MW / 9MWh

• United States——User-Side DC-Coupled Solution

Project Requirement

Pure off-grid PV+BESS charging station (Solve the problem of no grid and high energy costs)

Operating logic

Under EMS control, PV power supply is prioritized and BESS is used to balance power to achieve continuous and stable charging operation without grid.

Scale：750kW / 3.472MWh

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Wenergy Battery Energy Storage Container Features 

• High Scalability

Featuring an integrated container and modular design, the system allows flexible stacking and easy capacity expansion.

• Safety and Reliability

Built with high-safety, long-life LFP batteries, the system is equipped with an intelligent Battery Management System (BMS), IP55-rated enclosure, and module-level fire suppression.

• Comprehensive Solution

The energy storage container integrates a complete electrical system, including energy management, thermal control, and fire protection. It delivers a truly all-in-one solution with fast installation and efficient deployment.

Application Scenarios 

• Peak Shaving and Load Shifting

By shifting energy use from peak to off-peak times, the BESS helps businesses reduce electricity bills and achieve smarter energy cost management.

• Utility-Scale Energy Storage

The BESS container balances grid load, integrates renewable energy, and supports frequency regulation, ensuring stable and reliable power networks.

• Commercial & Industrial Applications

Cuts energy costs, provides backup power for factories and data centers, and supports microgrids for stable operations.

• Remote / Off-Grid Power

An energy storage container provides dependable electricity for remote mining areas, island grids, and telecom sites.

15 Years of Battery Cell R&D and Manufacturing Expertise

Leveraging 15 years of expertise in battery cell R&D and manufacturing, Wenergy delivers containerized BESS with fully integrated cells, modules, power conversion, thermal management, and safety systems in a single unit.

Our solutions are modular and scalable, ranging from 3.85 MWh to 6.25 MWh, suitable for on-grid, off-grid, and hybrid projects.

Designed and certified to meet global safety and grid standards, Wenergy BESS ensures high energy efficiency, long cycle life, and reliable performance for large-scale energy storage applications, with flexible deployment and responsive international support.

Global Certifications, Trusted Quality

Core Strengths

• End-to-End Certification Coverage

Cell → Module → PACK → System

• Full-Lifecycle Safety Standards

Production → Transportation → Installation → Grid Connection

• Internationally Aligned Standards

Compliant with major global safety and grid regulations

International Certifications

• Europe / International Markets

IEC 62619 ｜ IEC 62933 ｜ EN 50549-1 ｜ VDE-AR-N 4105 ｜ CE

Key standards covering battery safety, system integrity, and grid-connection performance.

• North America

UL 1973 ｜ UL 9540A ｜ UL 9540

System-level requirements ensuring battery safety, thermal runaway assessment, and fire protection.

• Global Transport & International Authorities

UN 38.3 ｜ TÜV ｜ DNV-GL

Ensuring safe global transportation, multi-market access, and proven product reliability.

• China National Compliance

GB Standards ｜ CQC

Recognition of safety, grid connectivity, and quality under national regulatory frameworks.

Why customers choose our energy storage containers

∙  Our battery storage containers meet IEC/EN, UL, and CE standards with a zero-incident safety record.

∙  From raw materials to battery assembly, 100% produced in-house for reliable quality.

∙  From C&I modules to containerized BESS, single-line capacity reaches 15 GWh/year.

∙  Over 200 projects delivered with deep customer insight.

∙  Comprehensive pre- and after-sales services ensure smooth project execution, with localized services and a 72-hour quick response.

Start Your BESS Project with Wenergy

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Frequently Asked Questions (FAQ)

1、What Is an Energy Storage Container? 

An energy storage container is a modular solution that integrates battery systems, power conversion equipment, thermal management, and safety monitoring systems within a standard container. Designed for flexibility and easy deployment, the BESS container offers a compact and efficient way to store and manage energy for various applications.

2、What Certifications Do Your Products Have? 

Our energy storage containers have obtained multiple international and industry certifications, including IEC 60529, IEC 60730, IEC 62619, IEC 62933, IEC 62477, IEC 63056, IEC/EN 61000, UL 1973, UL 9540A, UL 9540, CE Marking, UN 38.3, TÜV, DNV, NFPA69, and FCC Part 15B, ensuring safety and reliability.

3、How Long Do the Batteries in Your Energy Storage Container Last? 

Our batteries come with a 10-year warranty, providing long-term, reliable performance under normal operating conditions. If any issues arise, our professional team provides ongoing technical support. We are experienced energy storage container exporters, having completed projects in over 60 countries worldwide. Our team can respond quickly to your needs.

4、Can I Customize the BESS for My Specific Grid Requirements?
Yes, our modular design allows flexible configuration to match your load, frequency regulation, and renewable integration needs.