massoutage

County annual report · FIPS 47105

2018 Loudon County, TN Power Outage Report

In 2018, customers in Loudon County, TN went without power for an average of 0.5 hours, a total of 13K customer-hours (Tennessee average 2.1 hours). That ranks 39th worst of 71 Tennessee counties and 2511th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
27,681 customers
Customer-hours out
13K
Peak customers out
877
Outages ≥1,000 out
0
0 of 10,000+ · 296 total
Longest outage
15h 15m
began May 17, 2018
Rank in state
39th/71
2511th of 2,798 US

Compared with TN, the US and 2017

Loudon County, TN average hours without power per customer compared with state and national averages, 2018Loudon County 0.5 hours, Tennessee average 2.1 hours, US average 5.6 hours, Loudon County, 2017 0.4 hoursLoudon CountyLoudon County0.5hTennessee averageTennessee average2.1hUS averageUS average5.6hLoudon County, 2017Loudon County, 20170.4h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Loudon County, TN customer-hours without power by month, 2018Jan 75, Feb 1,113, Mar 813, Apr 298, May 395, Jun 1,220, Jul 1,933, Aug 1,631, Sep 261, Oct 131, Nov 4,116, Dec 1,07802k4k6k75Jan1,113Feb813Mar298Apr395May1,220Jun1,933Jul1,631Aug261Sep131Oct4,116Nov1,078Dec
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Customer-hours; November was the worst month.

Loudon County year over year

CSVJSON
Loudon County, TN: average hours without power per customer by year2015: 2.7h; 2016: 0.4h; 2017: 0.4h; 2018: 0.5h, coverage 55%; 2019: 2.3h, coverage 73%; 2020: 2.5h, coverage 73%; 2021: 3.2h, coverage 73%; 2022: 5.5h, coverage 75%; 2023: 5.6h; 2024: 4.6h; 2025: 4.3h02460%50%100%2.7h20150.4h20160.4h20170.5h20182.3h20192.5h20203.2h20215.5h20225.6h20234.6h20244.3h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Tennessee customers tracked each year.

Biggest outages in Loudon County, 2018

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 6, 2018 09:30November 6, 2018 21:1511h 45m8774,049
2March 20, 2018 12:15March 20, 2018 15:153h726191
3August 3, 2018 02:00August 3, 2018 03:451h 45m417730
4March 2, 2018 02:45March 2, 2018 03:3045m356178
5December 2, 2018 08:00December 2, 2018 11:003h279828
6February 11, 2018 04:45February 11, 2018 06:151h 30m265398
7February 25, 2018 07:45February 25, 2018 09:452h264528
8August 26, 2018 10:45August 26, 2018 19:158h 30m178273
9July 6, 2018 20:15July 7, 2018 06:1510h136414
10August 6, 2018 18:15August 6, 2018 18:3015m12130

Outage episodes by size in 2018: 14 reached 100+ customers, 0 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Loudon County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Fort Loudoun Electric Coop20184.9 hrs2.604.4 hrs2.48
City of Lenoir - (TN)-----
Loudon Utilities Board-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 55% of Tennessee's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 27,681 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Loudon County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Loudon County, TN annual power outage report, 2018, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2018/tennessee/loudon-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON