massoutage

County annual report · FIPS 47125

2015 Montgomery County, TN Power Outage Report

In 2015, customers in Montgomery County, TN went without power for an average of 0.1 hours, a total of 10K customer-hours (Tennessee average 2.4 hours). That ranks 36th worst of 50 Tennessee counties and 2346th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.1
119,925 customers
Customer-hours out
10K
Peak customers out
2,356
Outages ≥1,000 out
1
0 of 10,000+ · 196 total
Longest outage
12h 15m
began May 30, 2015
Rank in state
36th/50
2346th of 2,484 US

Compared with TN, the US

Montgomery County, TN average hours without power per customer compared with state and national averages, 2015Montgomery County 0.1 hours, Tennessee average 2.4 hours, US average 2.9 hoursMontgomery CountyMontgomery County0.1hTennessee averageTennessee average2.4hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
Montgomery County, TN customer-hours without power by month, 2015Jan 45, Feb 121, Mar 3,266, Apr 716, May 879, Jun 2,098, Jul 602, Aug 66, Sep 131, Oct 2,189, Nov 34, Dec 25501k2k3k4k45Jan121Feb3,266Mar716Apr879May2,098Jun602Jul66Aug131Sep2,189Oct34Nov255Dec
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Customer-hours; March was the worst month.

Montgomery County year over year

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Montgomery County, TN: average hours without power per customer by year2015: 0.1h; 2016: 0.2h; 2017: 2.0h; 2018: 1.2h, coverage 55%; 2019: 2.9h, coverage 73%; 2020: 2.0h, coverage 73%; 2021: 2.1h, coverage 73%; 2022: 4.0h, coverage 75%; 2023: 11.0h; 2024: 2.9h; 2025: 2.8h0510150%50%100%0.1h20150.2h20162.0h20171.2h20182.9h20192.0h20202.1h20214.0h202211.0h20232.9h20242.8h2025
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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 Montgomery County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 16, 2015 03:45March 16, 2015 05:301h 45m2,3562,958
2October 19, 2015 16:00October 19, 2015 17:151h 15m8061,008
3June 8, 2015 18:15June 9, 2015 01:307h 15m5861,448
4July 22, 2015 14:00July 22, 2015 16:002h462117
5October 23, 2015 12:45October 23, 2015 13:3045m249187
6June 9, 2015 19:15June 9, 2015 19:4530m18995
7October 26, 2015 06:30October 26, 2015 13:307h189674
8March 24, 2015 17:45March 24, 2015 18:451h188188
9June 1, 2015 21:30June 1, 2015 22:1545m188141
10June 29, 2015 17:30June 29, 2015 19:151h 45m188109

Outage episodes by size in 2015: 16 reached 100+ customers, 1 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 Montgomery 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
City of Dickson20153.1 hrs1.573.1 hrs1.57
Cumberland Elec Member Corp-----
City of Clarksville - (TN)-----

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 ÷ 119,925 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. Montgomery County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Montgomery 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/montgomery-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON