massoutage

County annual report · FIPS 47061

2015 Grundy County, TN Power Outage Report

In 2015, customers in Grundy County, TN went without power for an average of 0.0 hours, a total of 8 customer-hours (Tennessee average 2.4 hours). That ranks 45th worst of 50 Tennessee counties and 2450th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
7,160 customers
Customer-hours out
8
Peak customers out
2
Outages ≥1,000 out
0
0 of 10,000+ · 2 total
Longest outage
2h 30m
began April 20, 2015
Rank in state
45th/50
2450th of 2,484 US

Compared with TN, the US

Grundy County, TN average hours without power per customer compared with state and national averages, 2015Grundy County 0.0 hours, Tennessee average 2.4 hours, US average 2.9 hoursGrundy CountyGrundy County0.0hTennessee averageTennessee average2.4hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
Grundy County, TN customer-hours without power by month, 2015Jan 3, Feb 0, Mar 0, Apr 5, May 0, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 0, Dec 002463Jan0Feb0Mar5Apr0May0Jun0Jul0Aug0Sep0Oct0Nov0Dec
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Customer-hours; April was the worst month.

Grundy County year over year

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Grundy County, TN: average hours without power per customer by year2015: 0.0h; 2016: no data; 2017: no data; 2018: 0.0h, coverage 55%; 2019: 0.0h, coverage 73%; 2020: 2.1h, coverage 73%; 2021: 7.3h, coverage 73%; 2022: 3.0h, coverage 75%; 2023: 7.5h; 2024: 10.9h; 2025: 49.3h02040600%50%100%0.0h2015n/a2016n/a20170.0h20180.0h20192.1h20207.3h20213.0h20227.5h202310.9h202449.3h2025
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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 Grundy County, 2015

The 2 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 20, 2015 12:15April 20, 2015 14:452h 30m25
2January 14, 2015 19:45January 14, 2015 22:152h 30m13

Outage episodes by size in 2015: 0 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 Grundy 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
Duck River Elec Member Corp20156.7 hrs2.112.8 hrs1.78
Sequachee Valley Electric Coop20152.5 hrs1.492.5 hrs1.49
Caney Fork Electric Coop, Inc-----

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 ÷ 7,160 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. Grundy County has data for 2015, 2018–2025.

Cite this report

MassOutage (massoutage.com), Grundy 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/grundy-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON