ESB SAY MAJOR FAULT HAS KNOCKED OUT POWER TO THOUSANDS OF HOMES written by Stephen Maguire November 13, 2012 A major power-cut has cut electricity supply to thousands of homes around Letterkenny.The power went in homes and business around 9.25am. The ESB say a major fault has occurred but are unable to say what was the cause.The power has since returned.Tags:ESBfaultletterkenny