Hurricane Irma's march across Florida and into the Southeast triggered one of the bigger blackouts in US history, plunging as many as 13 million people into the dark as the storm dragged down power lines and blew out transformers.
CBS Miami reported Silagy believes thousands of miles of power lines will be affected by Irma.
As Hurricane Irma's winds and thunderstorms swept through South Florida on Saturday, almost 194,000 homes and businesses in the tri-county region lost power, according to Florida Power & Light.
"We restored power to about 40 percent of the customers impacted by Irma in just one day", FPL spokesman Rob Gould told a news conference on Tuesday.
More than 3.3 million homes and businesses - and counting - have lost power in Florida as Hurricane Irma moves up the peninsula.
In South Carolina, 150,000 customers are without power, according to Duke Energy and SCE&G.
Hydro One has reciprocal agreements in place with North American utilities to provide assistance during significant power outages, the utility said, and all costs are covered by the utility receiving the help.
Electricity generator Florida Power & Light, a subsidiary of NextEra Energy Inc, generates enough power for about 1.9 million homes at the Turkey Point and St. Lucie plants.
Image Zoom |By Bernie Woodall
"We are more prepared now that at any other time in the history of our company", said Silagy.
Some Floridians may have to suffer without air conditioning and basic power for an unimaginable length of time as some estimates look at weeks before power is restored throughout the whole state. However, FPL, said on Tuesday that would restore power to eastern Florida by this weekend, and to western Florida by Sept 22. Irma was his third hurricane.
FPL said it now has 16,000 crews from around the country - from California, Massachusetts Texas, Colorado and Wisconsin, including its own to restore power once hurricane and tropical winds subside.
The state's gas supplies were severely disrupted before and during the storm as ports were closed, cutting Florida off from waterborne deliveries the state relies on.
The company will adjust the plans as necessary, "depending upon the path of the storm", Gould said.
The widespread outages stretch from the Florida Keys all the way into central Florida.
Gov. Rick Scott said 30,000 workers from out of state are assisting efforts to bring back power to almost 5 million customers.
FPL said its two nuclear plants in Florida were safe.