ESS-17MW-84MWH Energy Storage Lithium Battery Large Scale Design

Overview

Our 17MW / 84MWh utility-grade battery energy storage system (BESS) is a fully liquid-cooled, large-scale energy storage solution designed for grid-side power stations, renewable energy base supporting projects, and bulk power regulation worldwide. Built on the industry-proven 1500V high-voltage DC platform, this containerized BESS delivers ultra-high energy density, stable round-trip efficiency, and full outdoor adaptability. Factory pre-assembled and fully tested, it enables fast on-site deployment, seamless grid integration, and reliable long-term operation for large-capacity energy storage projects.

Ideal for independent power producers, EPC contractors, and grid operators, the system maximizes renewable energy consumption, stabilizes grid performance, and lowers whole-life operational costs.

Core Specifications

• Rated Power: 17 MW
• Rated Energy: 84 MWh
• System Platform: 1500V DC high voltage
• Battery Cell: Utility-grade long-cycle LFP
• Cooling Solution: Full liquid cooling
• Round-Trip Efficiency: ≥93%
• Ingress Protection: IP65 (outdoor full weather protection)
• Operating Temperature: -20℃ to +50℃ (full-load derating-free operation)
• Communication: CAN/RS485/TCP/IP, compatible with global EMS & grid protocols
• Design Life: 10+ years
• Cycle Life: ≥6000 cycles (standard grid conditions)
• Operation Mode: Grid-tied priority, off-grid emergency backup available

Key Product Advantages

1. 1500V High-Voltage Design for Higher Efficiency & Lower OPEX

Adopting a mature 1500V high-voltage DC architecture, the system greatly reduces operating current and power transmission loss compared with traditional low-voltage BESS. It cuts cable and auxiliary equipment investment, improves single-container energy density, and saves land occupation. Optimized electrical loop balancing ensures stable cluster operation and consistent grid-connected performance for large-scale power station scenarios.

2. Full Liquid Cooling for Superior Thermal Stability

Equipped with an independent cluster-level liquid cooling circulation system, the BESS maintains precise and uniform heat dissipation for every battery cell. The internal temperature difference is strictly controlled within 3℃, effectively reducing cell attenuation, improving consistency, and eliminating overheating and thermal imbalance issues common in air-cooled systems. It supports continuous full-load operation under extreme high-temperature conditions with low cooling power consumption, ensuring stable performance throughout the entire project lifecycle.

3. Four-Tier Grid-Grade Safety Protection

The system implements comprehensive safety monitoring and protection at cell, module, cluster and system levels. Real-time voltage, current and temperature monitoring enables full overcharge, overdischarge, overcurrent, short-circuit and overvoltage protection. Integrated smoke detection, combustible gas monitoring, anti-condensation dehumidification and clean fluoroketone fire suppression provides early warning, automatic fault isolation and rapid emergency extinguishing. IP65 outdoor waterproof, dustproof and heavy-duty anti-corrosion design guarantees reliable operation in harsh weather environments.

4. Modular & Pre-Fabricated for Fast Project Delivery

Standardized modular cluster design supports flexible capacity combination and centralized deployment. All core components are fully pre-assembled and pre-commissioned in the factory, significantly shortening on-site construction, debugging and grid-connection cycles. The plug-and-play containerized structure minimizes site workload and construction risks, enabling fast commercial operation for large-scale energy storage power stations.

5. Intelligent Remote Monitoring & Unattended Operation

Supported by an intelligent EMS and cloud remote monitoring platform, the system realizes real-time data collection, intelligent fault diagnosis, abnormal early warning and remote parameter tuning. It automatically executes peak shaving, valley filling, frequency regulation, voltage stabilization and renewable fluctuation suppression. Unattended operation greatly reduces manual maintenance and lowers long-term operational costs for power plant owners.

Application Scenarios

• Grid-Side Centralized Energy Storage Stations: Provide peak regulation, frequency regulation and load optimization to enhance grid stability and power quality.
• Large Renewable Energy Base Support: Match utility-scale solar and wind farms to smooth power output, reduce curtailment and boost renewable energy consumption rates.
• Regional Grid Capacity Enhancement: Relieve peak power supply pressure and delay grid infrastructure expansion investment.
• Grid Ancillary Services: Deliver reliable frequency response, spinning reserve and peak regulation services for profitable power market