Integration of renewable energy sources into energy systems
Despite the remarkable technological progress achieved recently and the increasing competitiveness of renewable energy (RE) technologies, the large-scale integration of renewable energies into the European energy system is not straightforward. Available technical options are capable of satisfying ambitious targets only if considered from an integral planning perspective and used in combined schemes aimed at maximizing efficiency. This means that significant changes have to be made in existing energy infrastructures for accommodating renewable energy systems (RES) in an optimized way. Moreover, if in the long term renewables are intended to play a prominent role in the total energy supply a radical renewal of energy infrastructures has to take place.