GALWAY, IRELAND--May 2, 2012 --Written by Martin Lynch, European News Editor for Industrial Info (Galway, Ireland) The U.K. and Denmark are to investigate connecting their electricity grids in order to harness and share power from traditional and renewable energy sources. The country's grid operator, National Grid plc (NYSE:NGG) (London), announced that it is working with Danish grid operator, Energinet.dk (Frederica, Denmark), on a feasibility study for the laying of a subsea cable, the first electricity power connection between the two countries.