Krajacic, Goran; Duic, Neven; Carvalho, Maria da Graça - In: Applied Energy 88 (2011) 2, pp. 508-517
Portugal is a country with an energy system highly dependent on oil and gas imports. Imports of oil and gas accounted for 85% of the country's requirements in 2005 and 86% in 2006. Meanwhile, the share of renewable energy sources (RES) in the total primary energy consumption was only 14% in...