Ezequiel Fetter argues that in heavy industry decarbonisation is now a financial decision, not a reporting chapter: rising energy tariffs have cut payback periods to three to five years. The biggest operational levers sit where FM already works, with HVAC and process heat accounting for 30 to 50 percent of non-productive energy. Industrial heat pumps and heat recovery, integrated through a BMS, can deliver outsized cuts, with one Argentine site reaching a 52 percent electricity reduction and a 28-month payback.