ESS-50 MW-100 MWh Lithium Battery Storage System Container Design

Our 50MW / 100MWh full liquid-cooled Battery Energy Storage System (BESS) is a large-scale, utility-grade energy storage solution tailored for global grid-scale energy storage stations, large renewable energy bases, and regional power grid peak regulation projects. Adopting the mature and industry-leading 1500V high-voltage DC platform and containerized modular design, this BESS features ultra-high energy density, superior operational efficiency and full outdoor environmental adaptability.

Fully factory pre-assembled, tested and commissioned, the system supports rapid on-site deployment and seamless grid integration. It is specially built for independent power producers, large EPC companies and grid operators, helping maximize renewable energy utilization, stabilize grid operation, and optimize long-term project investment returns.

• Rated Power: 50 MW
• Rated Energy: 100 MWh
• System Platform: 1500V DC high voltage utility-grade architecture
• Battery Cell: Long-cycle, high-safety LFP cell
• Cooling Solution: Full liquid cooling system
• Round-Trip Efficiency: ≥93%
• Ingress Protection: IP65 full weather protection
• Operating Temperature: -20℃ to +50℃ (full-load derating-free operation)
• Communication Protocol: CAN/RS485/TCP/IP, compatible with global EMS and grid dispatching systems
• Design Service Life: 10+ years
• Cycle Life: ≥6000 cycles under standard grid conditions
• Operation Mode: Grid-tied main operation, support off-grid emergency backup

Built on the advanced 1500V high-voltage DC platform, the 50MW/100MWh BESS effectively reduces system operating current and power transmission loss compared with conventional low-voltage energy storage systems. It greatly lowers the cost of cables, PCS and auxiliary equipment, improves overall energy density, and saves project land occupation. Optimized electrical loop balancing ensures uniform cluster operation, bringing higher power generation efficiency and better long-term economic benefits for large-scale energy storage power stations.

Equipped with an independent cluster-level liquid cooling circulation system, the product realizes precise and all-round constant temperature heat dissipation for every battery cell. The internal temperature difference is strictly controlled within 3℃, which effectively suppresses battery attenuation, maintains long-term cell consistency, and completely avoids thermal imbalance and overheating risks of air-cooled products. The system supports stable full-load operation in extreme high-temperature environments with low cooling energy consumption, ensuring consistent and reliable performance throughout the project lifecycle.

The system adopts cell-module-cluster-system four-level hierarchical safety protection, fully complying with international grid safety standards. It supports real-time high-precision monitoring of voltage, current and temperature, with complete protection against overcharge, overdischarge, overcurrent, short circuit and overvoltage. Equipped with smoke detection, combustible gas monitoring, anti-condensation dehumidification and fluoroketone clean fire suppression system, it realizes early risk warning, automatic fault isolation and rapid emergency fire extinguishing. IP65 waterproof, dustproof and heavy-duty anti-corrosion design ensures stable operation in harsh outdoor climates.

Adopting standardized containerized modular integration design, all core equipment is pre-assembled and fully debugged in the factory. The plug-and-play structure greatly simplifies on-site construction procedures, shortens installation and grid-connection cycles, and reduces on-site construction risks and labor costs. The flexible modular combination mode perfectly meets the construction requirements of large-scale 50MW+ centralized energy storage projects.

Supported by intelligent EMS and cloud remote monitoring platform, the system realizes real-time data monitoring, intelligent fault diagnosis, abnormal early warning and remote parameter adjustment. It automatically performs peak shaving, valley filling, grid frequency modulation, voltage stabilization and new energy fluctuation suppression. Long-term unattended operation effectively reduces manual intervention and daily maintenance costs, minimizing the whole lifecycle operational expenditure for power station investors.

• Grid-Side Centralized Energy Storage Stations: Provide peak regulation, frequency modulation and load balancing services to improve grid stability, power quality and grid transmission capacity.
• Large-Scale New Energy Base Matching: Cooperate with large wind farms and photovoltaic bases to smooth power output fluctuations, reduce wind and solar curtailment, and improve renewable energy grid-connected consumption rate.
• Regional Grid Capacity Expansion: Relieve power supply pressure during peak electricity consumption periods, delay grid infrastructure investment, and optimize regional power grid resource allocation.
• Grid Ancillary Service Market: Provide reliable frequency response, spinning reserve and peak regulation services to create multiple profit channels for energy storage power plants.