For Sacal – Società Alluminio Carisio, aluminum refining leading company, Genera created a complex intervention to retrieve the heating waste produced during the production of the premises.
It has been possible to recover heat and to send it to an ORC (Organic Rankine Cycle) plant for electricity production, thanks to an afterburner for smoke stabilization and a boiler for the steam generation. It is expected to retrieve 14 thermal GWh per year and produce 10 GWh of electricity for the premises.
Type of contract: Operating lease
Duration of the contract: 10 years
Energy consumption ante-operam:
17.900 MWhe/year – 13.500.000 Sm3/year
Energy consumption post-operam:
7.750 MWhe – 9.900.000 Sm3
Natural gas saving: 27%