Portugal's energy market is fully liberalized and regulated by ERSE; consumers can freely switch providers (EDP Comercial is the market leader, alongside Endesa, Iberdrola, and Galp Power) at no cost. Renewables (solar, wind, hydro) supplied approximately 79-80% of mainland electricity generation in early 2026. Connecting service requires a valid lease/deed, NIF, SEPA bank details, and a CPE (electricity) or CUI (gas) code; most properties have smart meters reporting automatically to distributor E-Redes. Water supply is managed locally by municipal entities (e.g. EPAL in Lisbon, Águas do Porto in Porto), billed monthly on progressive tiers bundled with sanitation/waste fees.