The liberalized electricity market in mainland Portugal lost 1,289 customers in August compared to July, totaling 5.8 million, but increased by 1.7% compared to the same month of 2025, according to ERSE data.
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12/11/2026
by
Lusa
O liberalized electricity market in mainland Portugal lost 1,289 customers in August compared to July, totaling 5.8 million, but increased by 1.7% compared to the same month of 2025, according to ERSE data.
According to the Bulletin of the Liberalized Electricity Market, released today by the Regulator of Energy Services (ERSE), consumption reached 46.488 gigawatts-hour (GWh) in August, minus 69.1 GWh than in the previous month, but more 3.4% compared to the homologous period.
The free market represented, at the end of August, 88.2% of the total number of electricity customers in mainland Portugal and about 95% of consumption.
EDP Comercial continued to lead the liberalised market, both in number of customers, with a share of 58.4%, and in consumption, with 38.3%, although it had a reduction of 0.1 percentage points in both indicators compared to July.
In the industrial customer segment, EDP also maintained the leadership in terms of consumption, with a share of 26.5%, plus 0.3 percentage points than in the previous month. Among large consumers, the company retained a quota of 24.3%, unchanged from July.
According to ERSE, the liberalised market concentration decreased again in August, with a slight decrease of 0.1% in number of customers and 0.2% in consumption compared to the previous month.
In August, Goldenergy stood out as the marketer that most customers captured in absolute terms, concentrating about 45% of customers who changed suppliers. MEO Energia and Repsol followed, with 34% and 18%, respectively.
The residential segment continued to concentrate the overwhelming majority of customers in the liberalised market, representing 98.8% of the total, while its consumption weight was 40.5%.
The regulated market accounted for 782,776 customers at the end of August, more than 5,073 than in the previous month, with an annual consumption of 2,390 GWh.
Similarly, the regulated market decreased by 4.8% in the number of customers and by 1.3% in consumption, according to ERSE.