GALWAY, IRELAND--December 10, 2012 --Written by Martin Lynch, European News Editor for Industrial Info (Galway, Ireland) Two of the U.K.'s old nuclear power plants have received the green light to operate for another seven years. Hinkley Point B in Somerset and Hunterston B in North Ayrshire are now expected to remain operational until at least 2023, following a positive decision by the Office for Nuclear Regulation (ONR).