Customer Background
The customer is a German renewable energy company specializing in battery energy storage systems (BESS) for commercial and industrial applications.
The project is designed to store electricity generated from solar power, ensuring stable energy supply and improved energy efficiency for industrial users.
The application scenario is a 261kWh Commercial & Industrial BESS, where stable thermal management is critical for battery safety, system efficiency, and service life.
Project Requirements & Challenges
Due to Germany’s strict regulatory standards and variable climate conditions, the customer had clear and high-level requirements:
Use of R513A environmentally friendly refrigerant
Full compliance with CE certification
Reliable operation under extreme heat in summer and severe cold in winter
6kW cooling capacity to maintain stable internal cabinet temperature
Automatic temperature control
Remote monitoring and communication capability
High protection level to ensure long-term outdoor operation
The main challenge was to provide a highly reliable, energy-efficient cooling solution that meets both environmental regulations and demanding operating conditions of BESS systems.
Cooltechx Solution

Cooltechx provided the CTS0060N Industrial Cabinet Air Conditioner, specifically designed for energy storage applications.
Key configuration and advantages include:
Cooling Capacity: 6kW, ensuring stable temperature control inside the BESS cabinet
Refrigerant: R513A, environmentally friendly and compliant with EU regulations
Compressor: High-efficiency compressor for reliable and energy-saving operation
Communication: RS485 remote communication module for real-time monitoring and control
Protection Level: IP56, suitable for harsh industrial environments
Temperature Control: Fully automatic operation to protect batteries and electronic components
This solution effectively balances performance, compliance, and sustainability.
Installation & Deployment
Installation Method: Vertical installation inside the energy storage cabinet
Deployment Process: Plug-and-play design allowed for fast and efficient installation
Delivery & Cooperation: Smooth coordination between Cooltechx and the customer ensured timely delivery and rapid system commissioning
The internal installation design helped optimize space utilization while enhancing protection and system integration.
Results & Customer Feedback
After commissioning, the first unit has been operating stably with excellent thermal control performance.
Based on the successful operation:
The customer has placed stable monthly orders of 10 units
Internal cabinet temperature remains consistently within the target range
System reliability and energy efficiency met expectations
Overall customer feedback has been highly positive
This project has become a long-term cooperation model for Cooltechx in the European energy storage market.