Data centre heat recovery

Cundall delivered a feasibility study assessing the potential for recovering heat from a data centre’s cooling system. The project stands out for its comparison of innovative, high-capacity heating technologies – balancing technical performance, energy efficiency, and financial viability – to support sustainable heat supply through integration with the district heating network.

Our team developed and assessed two concept designs, with one combining ammonia-based heat pumps with a cogeneration engine, and the other relying solely on high-performance heat pumps. Both options were modelled for 21 MW output, with detailed analysis of system integration, performance efficiency (COP up to 4.9), and payback period. A market review of ten heat pump systems informed the final recommendations.

Igor Sikorski, Principal Mechanical Engineer, comments "This project has provided us with the opportunity to leverage our extensive engineering expertise and test various solutions in different configurations. The technical aspect of this study was both a challenge and a remarkable showcase of engineering skills, resulting in a tailor-made solution for the district heating network and data centre, optimised for both energy efficiency and investment effectiveness."