Pursuant to the terms and for the purposes of article 248 of the Portuguese Securities code, EDP - Energias de Portugal, S.A. ("EDP") provides the following information to the market and general public:

EDP Serviço Universal, S.A. ("EDP SU"), the last resort supplier of the Portuguese electricity system, 100% owned by EDP Group, agreed the sale of EUR 100 million of the 2016 tariff deficit, related with special regime generation.

The 2016 tariff deficit resulted from the 5-year deferral of the recovery of the 2016 overcost with the acquisition of energy from special regime generation.

EDP – Energias de Portugal, S.A.