– 0 customers out in the US

September 2017 · the largest on record

Hurricane Irma

At the peak, 9,165,728 customers were without power, most of them in Florida, Georgia, South Carolina.

Hurricane Irma
Customers out at the peak 9,165,728 Sep 11, 2017, 3:00 PM
Customer-hours lost 588M Every customer out, times every hour out
Counties with 10%+ out 271 of 500 counties affected
Above 600,000 out nationally 7.6 days Sep 10, 2017, 6:00 AM onward
States affected 43 FL · GA · SC · NC · CA
Hardest-hit county 100%out Broward, FL · 1,298,256 customers

Hour by hour

The country, in the dark

Customers without power across the US, two days either side. The shaded band is the time the national total stayed above 600,000.

0 2.0M 4.0M 6.0M 8.0M 10M 12M Sep 8Sep 10Sep 12Sep 14Sep 16Sep 18Sep 20 Peak 9.2M

By state

Where it hit

StatePeak outShareCounties 10%+
Florida 8,300,781 77% 59
Georgia 1,527,082 31% 127
South Carolina 401,341 17% 27
North Carolina 98,334 4% 8
California 26,116 2% 0
Ohio 25,156 3% 3
Oklahoma 25,129 6% 4
Texas 24,188 4% 3
New Jersey 22,727 4% 0
New York 22,128 2% 0
Virginia 20,473 6% 2
Michigan 18,719 4% 1
West Virginia 18,024 10% 5
Idaho 17,979 6% 7
Utah 16,034 2% 1
Indiana 15,438 3% 1
Maine 15,395 3% 1
Colorado 14,325 2% 1
Wyoming 13,823 54% 1
Tennessee 12,162 4% 0

State peaks add each county's own peak, which may fall at different hours, so they can exceed the true simultaneous total.

By county

The hardest hit