PowerOutageHistory
Reliability Grade
A
Top tier
2015-2025
Tennessee

Morgan CountyPower Outage History

20152025 · Tennessee
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What this grade means

Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.

Takeaway
Low outage risk
Reliability Rank
Fuller bar = more reliable
Nationwide95th pct
In Tennessee#13 of 83
See full Tennessee rankings →
Total events
130
Recorded 2015–2025
Avg duration
1.6 hrs
Per outage event
Longest outage
17 hrs
Single worst event on record
Customers served
10,095
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Oct 26, 20195 hrs1,948 (19%)Unnamed event
Jul 25, 2019<1 hr1,176 (12%)Unnamed event
Jan 17, 2022<1 hr1,132 (11%)Heavy Snow
Jul 9, 2018<1 hr1,123 (11%)Unnamed event
Oct 26, 2019<1 hr954 (9%)Unnamed event

Was There an Outage on a Specific Date?

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

Over the 11 years from 2015 to 2025, Morgan County recorded 130 distinct power outage events, averaging 1.6 hours per event.

The single worst outage on record in Morgan County started October 26, 2019, lasting 5 hours and leaving up to 1,948 customers without power (19% of the county) at its peak.

December has historically been the worst month for outages in Morgan County, with 20 events recorded during that month across the dataset.

Based on this history, Morgan County earns a Reliability Grade of A, placing it in the 95th percentile nationally for grid reliability (higher percentile = more reliable).

Similar counties in Tennessee

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

CountyGradeNational percentile
Lauderdale CountyA95th
Henderson CountyA94th
Dyer CountyA96th
Unicoi CountyA96th
DeKalb CountyA97th

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 Morgan County?

Between 2015 and 2025, Morgan County recorded 130 outage events, averaging 1.6 hours each.

What is Morgan County's reliability grade?

Morgan County has a Reliability Grade of A, in the 95th national percentile.

What was the worst power outage in Morgan County?

The worst outage on record started October 26, 2019, lasting 5 hours and affecting up to 1,948 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.