LISBON (Reuters) – Portugal’s largest utility, EDP-Energias de Portugal, on Thursday reported an 18% drop in 2021 net profit to 657 million euros ($747 million) due mainly to one-off costs, including impairments on thermal assets in Iberia. It said such non-recurring negative effects amounted to 169 million euros. However, its recurring net profit rose 6% to 826 million euros, boosted by “a strong performance in renewables globally, the integration of Viesgo in Spain and growing activity of networks in Brazil”, it said in a statement. EDP bought Viesgo in December 2020, more than doubling its …