The New Utility Storage 5MWh Energy Storage Container (20ft)
Wenergy 5MWh Energy Storage System – Key Highlights
The 5MWh ESS is a turnkey energy storage solution designed for industrial and commercial applications. It combines high-capacity battery modules with a reliable PCS inverter system, all within IP55-rated, fire-protected containers. Key features include:
High Energy Density & Scalable Design
- More Power in Less Space: 5MWh capacity packed into a standard 20ft container, delivering maximum energy with minimal land use.
- Flexible Expansion: Modular cluster design makes it simple to scale up as your energy needs grow.
- Efficient Operation: High cycle efficiency ensures more usable energy and lower operating costs over the system’s lifetime.
Advanced Safety & Thermal Management
- Peace of Mind Protection: Multi-layer fire suppression and real-time monitoring keep your assets safe under all conditions.
- Stable in Any Climate: Smart liquid cooling maintains optimal performance from freezing winters to hot summers.
- Reliable Performance: Intelligent BMS ensures precise monitoring and protection against faults, safeguarding both system and investment.
Plug-and-Play Mobility & Compliance
- Fast Deployment: Delivered fully integrated in a container, easy to transport and install anywhere.
- Grid-Ready Integration: Seamlessly connects to your existing power systems and communication protocols.
- Trusted Standards: Certified to meet global safety and performance requirements, giving confidence for international projects.
Applications of the 5MWh Energy Storage System
Utility-Scale Renewable Integration
Smooths output fluctuations for solar/wind farms, enabling peak shaving and frequency regulation.
Industrial & Commercial ESS
Provides backup power and demand charge management for factories, data centers, or microgrids.
Remote/Off-Grid Power
Supports mining operations or island grids with high-altitude tolerance (up to 4000m, derated).
Emergency Energy Storage
Rapid deployment for disaster recovery due to modular design and 30-minute UPS backup.
Product Parameters
| Item | Specification | |
| Configuration | 12*(1P104S*4) | |
| Rated Capacity | 5.016MWh | |
| Rated Voltage | 1331.2V DC | |
| Voltage Range | 1164.8-1497.6V | |
| Rated Charging Power | 2.5MW | |
| Rated Discharging Power | 2.5MW | |
| Auxiliary Power | 400V AC±5% 50Hz/220VAC(Critical loads) | |
| Environmental Conditions | Storage Temperature | -30<T≤50℃ |
| Operating Temperature | -30<T≤50℃(Derating above 45℃) | |
| Altitude | ≤2000m | |
| Basic Parameters | Dimensions | 6058mm(L)*2438mm(W)*2896mm(H) |
| Weight | ≤43t | |
| IP Rating | IP55(Excluding liquid cooling chamber,air
conditioner external circulation chamber, electrical room door,and fire protection cable tray) |
|
| Cooling Method | Liquid Cooling | |
| Communication Protocol | CAN/IEC61850/IEC104/TCP/MODBUS RTU | |
| System Certification | IEC 62619:2022, IEC 62477-1:2012, EN IEC 61000-6-2:2019, EN IEC 61000-6-4:2019, EN 55011:2016/A2:2021, IEC 63056:2020, UN38. 3 | |
System Components
The 5MWh energy storage system consists of battery clusters (6 clusters, each with 8 packs), a PDU, DC combiner box, EMS, thermal management system, fire suppression system, and other supporting components. The system features external communication capabilities, allowing seamless data exchange with HMI, PCS, fire protection, and other equipment, and ensures long-term safe and stable operation.
System layout instructions
| No. | Name |
| 1 | Audible and Visual Alarm |
| 2 | Nameplate |
| 3 | Fire Control Box |
| 4 | Ground Point |
| 5 | Air Inlet |
| 6 | Air Outlet |
| 7 | Fire Extinguishing Water Outlet |
| 8 | DC Combiner Box |
| 9 | Fire Extinguishing System |
| 10 | Battery Module |
| 11 | High-Voltage Box (PDU) |
| 12 | Thermal Management System |
| 13 | Liquid Cooling Unit |
| 14 | Combiner Cabinet |
Successful Cases
● Zimbabwe Microgrid Project
Scale：
- Phase 1: 12MWp Solar PV + 3MW / 6MWh ESS
- Phase 2: 9MW / 18MWh ESS
Application Scenario：
Integrated Solar PV + Energy Storage + Diesel Generator (Microgrid)
System Configuration：
12MWp Solar PV Modules
2 Customized Energy Storage Battery Containers (3.096MWh total capacity)
Benefits：
- Est. Daily Electricity Savings 80,000 kWh
- Est. Annual Cost Savings $3 million
- Est. Cost Recovery Period <28 Months
● China CGGC-Gezhouba Special Cement ESS Project
Scale：
- Phase 1: 4MW / 8MWh
- Phase 2: 1.725MW / 3.44MWh
Application Scenario：Photovoltaic + Energy Storage
Benefits：
- Est. Total Discharge: 6 Million kWh
- Est. Daily Cost Savings: ＞ $136.50
- Cumulative Savings: ＞ $4.1 Million
- System Efficiency: 88%
- Annual Carbon Reduction: 3,240 tons
About Wenergy - Top 5MWh Energy Storage System Manufacturer
As a leading 5MWh energy storage system supplier, Wenergy provides battery solutions for nearly all types of energy storage applications, including industrial, commercial, utility-scale, microgrid, and off-grid renewable energy systems. With a strong focus on high-performance NCM and NCA cathode materials, as well as battery cells, Wenergy delivers products with high energy density, long cycle life, and modular design. Wenergy has supplied customized energy storage systems and full-service solutions to clients across six continents and more than 60 countries, ensuring efficient, safe, and reliable energy management.
Why Choose Wenergy?
- 14+ years of expertise in designing and manufacturing reliable energy storage systems.
- High-quality 5MWh energy storage systems, certified to international standards and trusted in 160+ countries.
- End-to-end service, from pre-sale consultation to after-sales support.
- A Professional R&D team to deliver customized solutions for industrial, commercial, and off-grid needs.
- Competitive pricing to reduce costs and maximize your profits.
Unlock Your Energy Potential – Reach Out Today!
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Our 5MWh ESS experts are ready to discuss your needs and provide the best options for your business.
Get in touch now to start your journey toward a smarter, more sustainable energy future.
