massoutage

County annual report · FIPS 47037

2015 Davidson County, TN Power Outage Report

In 2015, customers in Davidson County, TN went without power for an average of 2.6 hours, a total of 922K customer-hours (Tennessee average 2.4 hours). That ranks 13th worst of 50 Tennessee counties and 1038th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
2.6
359,052 customers
Customer-hours out
922K
Peak customers out
30,336
Outages ≥1,000 out
76
4 of 10,000+ · 518 total
Longest outage
10d 8h
began November 1, 2015
Rank in state
13th/50
1038th of 2,484 US

Compared with TN, the US

Davidson County, TN average hours without power per customer compared with state and national averages, 2015Davidson County 2.6 hours, Tennessee average 2.4 hours, US average 2.9 hoursDavidson CountyDavidson County2.6hTennessee averageTennessee average2.4hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Davidson County, TN customer-hours without power by month, 2015Jan 26K, Feb 85K, Mar 38K, Apr 83K, May 64K, Jun 59K, Jul 319K, Aug 60K, Sep 29K, Oct 32K, Nov 61K, Dec 66K0100k200k300k400k26KJan85KFeb38KMar83KApr64KMay59KJun319KJul60KAug29KSep32KOct61KNov66KDec
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Customer-hours; July was the worst month.

Davidson County year over year

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Davidson County, TN: average hours without power per customer by year2015: 2.6h; 2016: 2.6h; 2017: 2.0h; 2018: 0.3h, coverage 55%; 2019: 3.8h, coverage 73%; 2020: 23.9h, coverage 73%; 2021: 6.4h, coverage 73%; 2022: 5.4h, coverage 75%; 2023: 11.3h; 2024: 2.6h; 2025: 4.6h01020300%50%100%2.6h20152.6h20162.0h20170.3h20183.8h201923.9h20206.4h20215.4h202211.3h20232.6h20244.6h2025
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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 Davidson County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 26, 2015 19:45July 31, 2015 05:454d 10h30,336185K
2November 28, 2015 13:30December 2, 2015 07:303d 18h18,00934K
3July 13, 2015 11:45July 17, 2015 03:303d 15h12,29577K
4April 9, 2015 12:15April 11, 2015 11:001d 22h11,25922K
5December 25, 2015 12:00December 25, 2015 21:009h8,51611K
6April 13, 2015 11:30April 17, 2015 05:003d 17h8,17020K
7March 11, 2015 12:45March 12, 2015 04:0015h 15m8,1617,173
8May 25, 2015 11:15May 28, 2015 08:152d 21h8,15423K
9February 16, 2015 11:30February 19, 2015 07:452d 20h7,47857K
10March 3, 2015 14:00March 4, 2015 08:0018h6,8536,068

Outage episodes by size in 2015: 184 reached 100+ customers, 76 reached 1,000+ customers, 4 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 Davidson County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Nashville Electric Service20152.8 hrs1.841.9 hrs1.58
Middle Tennessee E M C-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Tennessee's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 359,052 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. Davidson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Davidson County, TN annual power outage report, 2015, 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/2015/tennessee/davidson-county

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