But this assumes that all of them are constructed according to schedule, and the nuclear industry has rarely met its promised construction deadlines. According to the World Nuclear Association (WNA), 17 new reactors should have become operational between 2007 and 2009.
在未来五年内预计每年会有大概10座新反应堆投入运行，但这要求所有建设都按期完工，而核能行业却经常是不守时的。依照世界核能组织的数据，2007~2009年间本该有17座新反应堆投入运行，谁知最后只有5座得以发电——2007年3座，2009年两座。