A federal commission says more than two dozen nuclear power plants in the United States lack backup power for sirens that would warn of a nuclear emergency.
The Nuclear Regulatory Commission says 28 plants do not have the backup power needed to alert residents of trouble in a 10-mile radius.
Seventeen plants have full backup for the systems, while 18 others have at least some sirens that would remain operable during an outage.
The Byron Plant has 94 sirens within a 10-mile radius and only 20 of the sirens have battery backup supplies.
The company has budgeted an upgrade in 2006, and their goal is to have battery backup for every siren within a 10-mile radius.
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