NRC released a list specifying reactors sites without power back up

Nuclear Information and Resource Service: "s, the U.S. Nuclear Regulatory Commission (NRC) has revealed that 28 reactor emergency plan zone siren systems are entirely reliant upon electricity from their regional grid. Another 18 sites have only partial emergency power backup available to siren systems. Only 17 reactor sites have siren systems that are fully backed up with emergency power systems so that they would remain operable independent of the failure of main power lines. The Department of Homeland Security /Federal Emergency Management Agency have been engaged in revising public notification systems since the August 14, 2003 northeast regional electricity blackout but no date for completion is available. The information was contained in a NRC denial issued May 20, 2005 of an emergency enforcement petition submitted on February 23, 2005 requesting that emergency back up power supplies (rechargeable batteries preferably on photovoltaic solar panels) be backfitted to all public alert systems around the nation’s nuclear power stations. The NRC released a list specifying reactors sites without power back up, partial back up and full back up, today."