Adequate, well integrated and reliable energy networks are a prerequisite for an integrated and competitive internal energy market. The aim of the Connecting Europe Facility1 is to accelerate investment in the field of trans-European networks and to leverage funding from public and private sectors. While the bulk of the investment needed in the energy sector should be delivered by the market and its costs recovered through tariffs, EU financing may be needed for specific projects with wider regional and European benefits which are unable to attract market-based financing