By Roger Witherspoon Schenectady, NY – The 1,000-megawatt Indian Point 2 nuclear power plant could be shut down when its license expires in 2013 with no impact on either system reliability or the electricity needs of the New York City -Westchester County section of the state’s electric grid. But the region could face an electricity shortage and a stress on system voltage if its nuclear twin, Indian Point 3, closes when its license expires at the end of 2015 and no replacement