washington energy firm florida power light fpl say wednesday could shut four nuclear reactors path hurricane irma saturday storm stay current path base current track would expect severe weather florida start saturday mean would potentially shut point spokesman peter robbins say email company subsidiary nextera energy inc watch weather would adjust plan necessary robbins say trajectory irma category storm wind 185 miles per hour 295 km per hour uncertain irma u.s. national hurricane center say strong atlantic storm record expect pass near north puerto rico wednesday scrap dominican republic thursday fpl operate st. lucie nuclear power plant hutchinson island barrier island atlantic 55 miles 88 km north west palm beach two reactors generate 2,000 megawatts electricity enough power supply million home also operate turkey point nuclear power station biscayne bay 24 miles south miami two reactors generate 1,600 megawatts electricity enough 900,000 home robbins say plant design withstand extreme natural events include hurricanes serious flood two florida nuclear plant likely shut irma stay path