The problem isn't the lack of generators. It's that the underground switching room where you connect the generators to the cooling system was flooded out and apparently destroyed.
No I understand. The old generators were screwed. I would have hoped they could have fugure a way to wire up some aux gas turbine generators to keep the pumps running or recharge the back up batteries. I know it would not be easy but we are seeing the alternative play out.
GE said they had them ready to go
http://www.gepower.com/prod_serv/products/gas_turbines_cc/en/index.htm
Caterpillar has them at up to at least 2000 KW. Onan up to 6000 KW.
The US Military has gas turbines and big diesel generators.