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The New Utility Storage 5MWh Energy Storage Container (20ft)
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3.85MWh Liquid-Cooling Lithium Ion Battery Storage Container
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Turtle CL2.5 Series AC/DC Integrated Containerized Energy Storage System
Built for Utility-Scale & Commercial BESS Projects
Designed to meet real project requirements across grid-side, renewable, and industrial energy storage applications:
- Lower Project Payback Time
Optimize energy usage and improve return on investment - Reduce Grid Penalty Risks
Stabilize power output and meet grid compliance requirements - Maximize Renewable Energy Utilization
Store excess solar and wind energy to increase energy yield - Ensure Reliable Power Supply
Provide stable backup power for critical operations - Adapt to Complex Energy Scenarios
Suitable for grid-connected, off-grid, and hybrid systems
Utility-Scale & Commercial BESS Project Cases
Proven performance across multiple real-world applications:
- Latvia | Grid-Side Frequency Regulation BESS

Scale:4.5MW / 9MWh
- Rapid response to AGC signals for real-time frequency stabilization
- Complies with strict European FCR/aFRR grid requirements
- Enhances grid stability and supports reliable power system operation
- Eastern Europe | 5MW / 20MWh Industrial PV + BESS

Scale:5MW / 20MWh BESS
- Provides ≥4 hours backup to ensure uninterrupted industrial operation
- Reduces electricity costs through peak–valley arbitrage
- Improves energy efficiency and long-term system reliability
- Bulgaria | PV + BESS Energy Shifting Project

Scale:1.725MW / 3.85MWh BESS
- Maximizes solar energy utilization and reduces curtailment
- Enables energy shifting based on real-time electricity pricing
- Improves project ROI through peak-demand energy dispatch
- United States | Off-Grid PV + BESS Microgrid

Scale:750kW / 3.472MWh
- Ensures stable power supply without grid connection
- Optimizes PV usage with intelligent energy management
- Reduces reliance on diesel and lowers long-term energy costs
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1Get Your BESS Pricing & Project Solution in 24 Hours
Certified for Global and Grid Compliance

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.
Product Highlights
• High Scalability
Modular container design enables flexible capacity expansion and easy system integration for different project sizes
• Advanced Safety and Reliability
Equipped with high-performance LFP batteries, intelligent BMS, IP55 protection, and multi-layer fire suppression to ensure safe and stable operation
• All-in-One Integrated System
Fully integrated with PCS, thermal management, EMS, and fire protection, reducing installation complexity and improving deployment efficiency
15 Years of Battery Cell R&D and Manufacturing Expertise

Why Choose Wenergy
• Proven Global Project Experience
200+ projects delivered across 60+ countries, with deep understanding of utility-scale and industrial energy storage applications
• Fast & Reliable Delivery for Large-Scale Projects
Up to 15 GWh annual production capacity ensures stable supply and shorter lead times for large-scale deployments
• Certified for Global Markets
Compliant with IEC, UL, CE and major international standards, ensuring smooth grid connection and project approval
• Localized Support in Europe
Local teams and partners provide faster response, easier communication, and reliable after-sales support
• Full In-House Manufacturing for Quality Control
From battery cell to system integration, complete in-house production ensures consistent quality and optimized cost
Start Your BESS Project with Wenergy
Engineering team will respond within 24 hours.
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.