Each year industries across Europe allow a valuable source of heat energy to simply escape out their chimneys. An EU-funded project called ETEKINA has reimagined a decades-old technology called heat pipe heat exchangers that allow companies to re-use the heat they generate. So far three sites that installed the prototype technology have slashed their fuel costs by 40%—an aluminum casting production plant in Spain (Fagor Ederlan), a steelworks in Slovenia (SIJ Metal Ravne) and a ceramic producer in Italy (Atlas Concorde).
