NEW ORLEANS electricity and gas firm Entergy has so far restored power to more than two thirds of its 1.1M customers in Louisiana and Mississippi.
The company has seven power stations. Its only nuclear power station was shut down ahead of the hurricane and the other six were knocked out.
North Louisiana regional manager Todd Bordelon said: 'We didn't have a lot of problems getting them up and running.
'The problem was that we lost a lot of our transmission lines to storm damage, and when you lose transmission lines, your generators have to be shut off because AC electricity has no storage element.' Entergy has drafted in staff from surrounding states to repair transmission lines and damaged substations. Line men have also begun work on distribution lines in the dry areas of New Orleans.