The UK arm of French energy giant EDF reported H1 pre-tax earnings of €1,174 million from €1,031 million seen over the first half of last year.
The company, which operates the UK’s 9 GW nuclear fleet, said the growth was due to an increase of 6.9% in nuclear power output following reduced planned maintenance outages.
Although mild temperatures over the winter months resulted in lower gas sales this was partially offset by 3.2% growth in customer accounts to more than 5.6million, it said.
Parent company EDF Group also reported strong H1 growth of around 3% to €9.6 billion.
This was supported by organic pre-tax earnings growth of 5.9% to €6,856 million for the French business which also benefitted from reduced nuclear outage durations and lower operating costs.