The Aurubis Group has leveraged Alfa Laval heat transfer solutions to recover waste heat in one of their smelters. The heat that before was lost to the river Elbe, now has the potential to heat 20 000 homes through the district heating network in Hamburg's HafenCity. And when the project has reached its full potential, it could result in a 100,000-ton reduction in CO2 emissions per year.

Almost every city has untapped heat sources like Aurubis. Do you have untapped heat sources in your home city?