The surplus produced each year by factories, supermarkets, wastewater facilities, data centres and subways amounts to 2,860 terawatt-hours, nearly the same as the European Union’s total demand for heat and hot water in residential and service-sector buildings, Danfoss Energy said.
Boosting energy efficiency is viewed as essential for the bloc in coming years to assure a more secure – and more green – energy network. Utilising waste heat would help with the transition to carbon neutrality since the process doesn’t require burning new oil, gas or coal. Using excess heat in combination with other efforts to reach net zero could save €67.4-billion annually by 2050, according to the research by closely held Danfoss, which produces heating and ventilation systems. In urban environments, the surplus would be transferred into a district network to warm a central water source for heating nearby buildings.
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