About us
Clear energy, lighter bills
WattDiet is an independent project that helps households understand where their home energy goes, which upgrades are really worth it and how much they could save by switching supplier.
Numbers, not slogans
The calculator uses an energy balance based on the Italian UNI/TS 11300 standard and calibrates itself on your real consumption. Every result says where it comes from and how uncertain it is.
Official data
Electricity and gas deals come daily from the Portale Offerte run by ARERA and Acquirente Unico; climate data from public sources. We never add deals by hand.
Neutral rankings
Deals are ranked only by what they would cost you. A commission never changes a deal鈥檚 position.
Your data stays yours
Without an account everything stays in your browser. Bill PDFs are read and discarded, without extracting your name, address or meter codes.
For questions or feedback get in touch. To see how the site is funded, read how we earn.