Deep Green develops waste-heat recovery systems to ease AI power strain

Deep Green, a UK-based company, builds modular, high-density data centers designed specifically for AI and high-performance computing workloads. Its closed-loop, waterless cooling systems capture and reuse up to 95% of waste heat, routing it to nearby buildings, pools, and district heating networks. The result is a Power Usage Effectiveness rating between 1.03 and 1.07. Using the electrons twice Deep Green’s proof of concept sits in Urmston, Greater Manchester. A 400 kW facility there pipes excess heat directly to the Trafford Leisure Centre’s swimming pool, saving the facility roughly £80,000 per year in heating costs and cutting CO2 emissions by an estimated 100 to 150 tonnes annually. CEO Mark Lee has described the philosophy as a commitment to “use the electrons twice.” Deep Green’s 5.6 MW facility in Bradford secured planning consent on May 14, 2026, and is expected to connect to the Bradford Energy Network. Once commissioned by late 2028, the site will deliver low-carbon heat to multiple city-center buildings and is projected to reduce CO2 emissions by more than 4,500 tonnes per year. The company’s Energy Reuse Factor, a metric measuring how much waste heat actually gets put ...