BESS Chillers
Shop by Brand
BESS Cooling Systems for Battery Energy Storage | Pfannenberg Liquid Chillers
Battery Performance Starts With Temperature Control.
The Pfannenberg BESS liquid cooling systems are designed to maintain optimal battery temperatures, improving performance, safety, and lifespan in energy storage applications.
✔ Prevent overheating and thermal runaway
✔ Extend battery life and efficiency
✔ Reliable operation in extreme environments
👉 Available from Excel Automation
In battery energy storage systems (BESS), thermal management is critical. Even small increases in temperature can significantly reduce battery lifespan and performance. Lithium-ion batteries operate best around controlled temperatures, and excessive heat can rapidly degrade system efficiency.
Pfannenberg liquid cooling solutions for BESS provide precise temperature control, ensuring safe, reliable operation across a wide range of environments—from compact enclosures to large-scale energy storage systems.

Advanced Liquid Cooling for Energy Storage Systems
Pfannenberg’s BESS chillers are engineered to deliver reliable thermal management in demanding environments, supporting both compact and large-scale installations.
Key Features & Benefits
1. Precise Temperature Control
Maintain optimal battery operating conditions to maximize performance and lifespan.
2. High-Efficiency Cooling
- Inverter-driven compressors
- Variable-speed fans
- Energy-optimized operation
These features ensure efficient cooling while reducing overall energy consumption.
3. Designed for Extreme Environments
Operate reliably in harsh conditions:
- Extreme heat and cold
- Outdoor and industrial installations
- Remote and off-grid applications
4. Flexible Installation Options
- Door-mounted chillers for compact systems
- Internal or stand-alone units for scalable installations
- Space-saving designs for high-density environments
5. Direct Battery Integration
Select models allow direct DC connection (up to 800 VDC), eliminating the need for additional power conversion and simplifying system design.
6. Smart Monitoring & Communication
Seamless integration with Battery Management Systems (BMS) via:
- Modbus TCP / RTU
- Ethernet connectivity
