RIVIERA BEACH, Fla. — Nearly 7 million people are without power as Hurricane Irma pounds Florida, FPL officials said Sunday during an emergency operations meeting.

The 7 million in the dark represent 3.4 million customer accounts. The company, which serves 5 million accounts representing 10 million people in 35 counties, expects about 3.4 million customer accounts, representing 6 million people will lose power in Irma's wake.

More than 17,000 utilities workers from 30 states and Canada are stationed at more than 20 staging sites across the state ready to restore power.

The workers, employed by other utilities companies throughout the U.S., can begin restoration work once winds drop to 35 mph and floodwaters recede.

PHOTOS: Hurricane Irma makes landfall in Florida

Some have been working during the storm to restore power. By Sunday, the company restored power to 400,000 customers during the storm.

"We are restoring power where we can get out between feeder bands," Rob Gould, FPL vice president and chief communications officer said Sunday.

FPL officials believe restoration efforts can begin in Broward and Miami-Dade counties first when FPL meteorologist Tim Drum predicts tropical storm force winds might subside by 7 a.m. Monday.

Drum predicts tropical force winds to subside in Palm Beach County by 9 a.m. Monday and on Florida's west coast by noon Monday — all best-case scenarios, he said.

On Sunday morning, as Irma battered The Keys, hurricane force winds extended 80 miles from the storm's eye. Tropical storm force winds extended 220 miles from the eye, Drum said.

The greatest storm surge is expected on the Gulf Coast, with surges of up to 15 feet, Drum said. The state will see 8 to 15 inched or rain and 20 inches in some areas, Drum said.

It will take roughly 1 million man hours to restore power and rebuild the company's infrastructure on the west coast, which could be demolished by Irma.

Restoring power at storm shelters on the west coast where Irma is taking aim is a top priority.

Crews on the east coast are ready to cross Alligator Alley once the roads are clear.

"This is the toughest time of the storm because we have to, unfortunately, sit here and watch the impact of the storm and see how our customers are impacted with a very little ability to restore them," FPL president and CEO Eric Silagy said Sunday.

FPL expects Irma's powerful winds and potential flooding to wipe out parts of its infrastructure on the west coast, snap concrete poles and bend metal ones. While trying to restore power to as many customers as possible, crews also will begin rebuilding the infrastructure, which could take weeks.

Rebuilding entails replacing hundreds of down poles, substations and parts of the electrical system, Gould said.

It's still too early to estimate the cost of repairing and rebuilding FPL's infrastructure, Gould said.

The number of customers predicted to lose power shatters a record once held by Hurricane Wilma in 2005, which blacked out power to 3.2 million customers.

Follow Nicole Rodriguez on Twitter: @NicRodriguez