Domestic customers in the regulated electricity market will face an average price increase of 2.7% starting October 1st. The Energy Services Regulatory Authority (Entidade Reguladora dos Serviços Energéticos or ERSE) attributed the tariff hike to rising energy costs, which have been exacerbated by international geopolitical tensions.
Regulated market electricity bills to rise in October
Tuesday, 15 September 2026AI summary
Context & Explainers
The Energy Services Regulatory Authority (Entidade Reguladora dos Serviços Energéticos or ERSE) is Portugal’s regulator for electricity, gas and fuel markets, responsible for licensing, tariffs and consumer protection. ERSE handles consumer complaints (it received about 80 complaints in the recent Galp case), can investigate billing disputes and impose sanctions, so it’s the authority to contact for unresolved energy issues.





