Tiago Felícia is an independent energy information project offering free tools to help people in Portugal compare tariffs, understand energy costs and make informed decisions. Its online simulators cover electricity and natural gas, comparing fixed and indexed offers using household consumption or bill details. The electricity tool can analyse consumption data from E-Redes, while the gas simulator helps users identify offers suited to their usage. A beta dual-energy simulator compares combined electricity and gas packages, and users are invited to report issues as its offer database grows.

For households considering solar panels, the project’s autoconsumption simulator estimates potential savings and investment payback, helping users assess commercial proposals. The site also provides information on referral codes, alongside daily and historical market data for electricity and gas, European energy prices, production and energy balances. Practical resources include guides to reading bills, indexed-price formulas, time-of-use periods and autoconsumption, as well as regulatory information on tariffs, social rates and ERSE rules.