What if cities heated homes using industrial waste heat?That’s already happening in Hamburg.In Hafencity, excess heat from a copper smelter is captured, stored and reused to heat thousands of homes — instead of being wasted. The result: lower emissions, more efficient energy use and a smarter urban heating system.Backed by EU funding, this project shows how cities can decarbonise everyday infrastructure by connecting industry and urban development.Sometimes, the cleanest energy is the one we already produce.#EnergyTransition #DistrictHeating #SustainableCities #EUFunds #ClimateAction #CohesionPolicy