The biggest problem the EU faces in developing its internal energy market (IEM) is the “level of interest in linking up,” Miguel Arias Canete, commissioner for energy and climate change, told delegates at Eurelectric’s annual conference. He said the EU would provide financial support to help the bloc meet its target of interconnection covering 10% of supply volumes, but “public resources will not be enough to bridge the investment gap. We need to have more investment [from private sources]”.