PowerOutageHistory
Reliability Grade
C
Average
2014-2025
Kentucky

Grant CountyPower Outage History

20142025 · Kentucky
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What this grade means

Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.

Takeaway
Typical outage risk
Reliability Rank
Fuller bar = more reliable
Nationwide48th pct
In Kentucky#42 of 120
See full Kentucky rankings →
Total events
597
Recorded 2014–2025
Avg duration
2.3 hrs
Per outage event
Longest outage
50 hrs
Single worst event on record
Customers served
11,944
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
May 6, 20243 hrs9,100 (76%)Unnamed event
Dec 18, 20192 hrs5,912 (50%)Winter Weather
Apr 9, 202032 hrs5,374 (45%)Thunderstorm Wind
Mar 3, 202350 hrs4,305 (36%)Unnamed event
Jan 18, 2023<1 hr3,614 (30%)Tornado

Was There an Outage on a Specific Date?

Pick a date to see whether a power outage was recorded for Grant County, Kentucky that day.

Over the 12 years from 2014 to 2025, Grant County recorded 597 distinct power outage events, averaging 2.3 hours per event.

The single worst outage on record in Grant County started May 6, 2024, lasting 3 hours and leaving up to 9,100 customers without power (76% of the county) at its peak.

July has historically been the worst month for outages in Grant County, with 73 events recorded during that month across the dataset.

Based on this history, Grant County earns a Reliability Grade of C, placing it in the 48th percentile nationally for grid reliability (higher percentile = more reliable).

Similar counties in Kentucky

Counties with the closest reliability grade and national percentile to Grant County.

CountyGradeNational percentile
Caldwell CountyC48th
Calloway CountyC49th
Knox CountyC48th
Jefferson CountyC48th
Cumberland CountyC47th

Most reliable counties nationally

The top 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountySouth DakotaA100th
Clearwater CountyMinnesotaA99th
Limestone CountyAlabamaA99th

Least reliable counties nationally

The bottom 3 counties nationally by reliability grade and percentile.

FAQ

How often does power go out in Grant County?

Between 2014 and 2025, Grant County recorded 597 outage events, averaging 2.3 hours each.

What is Grant County's reliability grade?

Grant County has a Reliability Grade of C, in the 48th national percentile.

What was the worst power outage in Grant County?

The worst outage on record started May 6, 2024, lasting 3 hours and affecting up to 9,100 customers.

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Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.