The proven first wave, roughly in payback order: heat-loss elimination via removable insulation (2–5% of site fuel, <2-year payback), steam-trap repair, combustion tuning, economizers, condensate return, compressed-air leak programmes, VSDs, LED retrofits — then the structural levers: waste-heat recovery, heat pumps, solar PPAs and electrification of heat. The efficiency tier is cash-positive and bookable this year; the structural tier carries the 2030s targets.
From our guide: Industrial Decarbonization Initiatives — full context, charts and sources there.
