The Energy Services Regulatory Authority (Entidade Reguladora dos Serviços Energéticos or ERSE) proposed a 1.5% average rate increase for normal low-voltage electricity customers in mainland Portugal's regulated market. The adjustment takes effect in January 2027 and follows an earlier 2.7% rate hike introduced in October. Higher wholesale power prices driven by natural gas costs contributed to the increase, though savings from renewable energy contracts prevented steeper price jumps.
ERSE Proposes 1.5% Electricity Tariff Increase for 2027
Thursday, 15 October 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.
4 sources
- ERSE proposes a 1.5% increase in regulated electricity prices in 2027eco.sapo.pt ·
- ERSE proposes 1.5% increase in regulated electricity tariffs for 2027observador.pt ·
- Electricity prices to rise again in January: Regulator proposes a 1.5% increase for the regulated marketexpresso.pt ·
- ERSE proposes a 1.5% increase in electricity tariffs in the regulated market for 2027rtp.pt ·
