At its peak, Isaac left 769,458 customers without power, making it the fourth-most damaging storm in Entergy history in terms of outages. The only storms with larger customer impacts have been Katrina with 1.1 million affected customers, Gustav with 964,000 and Rita with 800,000.
A storm team of more than 12,000 restored power, overcoming significant challenges from flooding and downed trees blocking access to storm-damaged areas. In addition, road closures and heavy traffic made it difficult to move crews to where damage is heaviest.
"Isaac stuck around longer than anyone wanted and continues to cause significant challenges as we work to restore power as quickly and as safely as possible," said Greg Grillo, Entergy's incident storm commander.
As of press time, a total of 30 transmission substations were out in Louisiana and Mississippi. In addition, the number of damaged transmission lines included one in Entergy Arkansas, 13 in Entergy Mississippi, 34 in Entergy Louisiana, three in Entergy New Orleans and 12 in Entergy Gulf States Louisiana. No Entergy fossil or nuclear power plants were damaged by the storm.
Entergy Corporation is an integrated energy company engaged primarily in electric power production and retail distribution operations.