Henry CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 11, 2017 | 98 hrs | 29,929 (22%) | Tropical Storm Irma |
| Jul 20, 2022 | 4 hrs | 22,192 (16%) | Unnamed event |
| Jan 12, 2023 | 124 hrs | 21,828 (16%) | Thunderstorm Wind |
| May 9, 2023 | 1 hrs | 21,090 (15%) | Unnamed event |
| May 8, 2023 | 3 hrs | 19,514 (14%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Henry County, Georgia that day.
Over the 12 years from 2014 to 2025, Henry County recorded 1,016 distinct power outage events, averaging 2.1 hours per event.
The single worst outage on record in Henry County started September 11, 2017 (Tropical Storm Irma), lasting 98 hours and leaving up to 29,929 customers without power (22% of the county) at its peak.
July has historically been the worst month for outages in Henry County, with 119 events recorded during that month across the dataset.
Based on this history, Henry County earns a Reliability Grade of B, placing it in the 70th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Georgia
Counties with the closest reliability grade and national percentile to Henry County.
| County | Grade | National percentile |
|---|---|---|
| Cherokee County | B | 70th |
| Towns County | B | 71st |
| Upson County | B | 71st |
| Douglas County | B | 71st |
| Rockdale County | B | 69th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Henry County?
Between 2014 and 2025, Henry County recorded 1,016 outage events, averaging 2.1 hours each.
What is Henry County's reliability grade?
Henry County has a Reliability Grade of B, in the 70th national percentile.
What was the worst power outage in Henry County?
The worst outage on record started September 11, 2017 (Tropical Storm Irma), lasting 98 hours and affecting up to 29,929 customers.