massoutage

County annual report · FIPS 13167

2015 Johnson County, GA Power Outage Report

In 2015, customers in Johnson County, GA went without power for an average of 0.6 hours, a total of 2,601 customer-hours (Georgia average 1.8 hours). That ranks 103rd worst of 157 Georgia counties and 2026th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.6
4,550 customers
Customer-hours out
2,601
Peak customers out
255
Outages ≥1,000 out
0
0 of 10,000+ · 102 total
Longest outage
7h
began January 29, 2015
Rank in state
103rd/157
2026th of 2,484 US

Compared with GA, the US

Johnson County, GA average hours without power per customer compared with state and national averages, 2015Johnson County 0.6 hours, Georgia average 1.8 hours, US average 2.9 hoursJohnson CountyJohnson County0.6hGeorgia averageGeorgia average1.8hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Johnson County, GA customer-hours without power by month, 2015Jan 263, Feb 11, Mar 0, Apr 43, May 10, Jun 37, Jul 291, Aug 922, Sep 772, Oct 129, Nov 68, Dec 5602505007501k263Jan11Feb0Mar43Apr10May37Jun291Jul922Aug772Sep129Oct68Nov56Dec
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Customer-hours; August was the worst month.

Johnson County year over year

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Johnson County, GA: average hours without power per customer by year2015: 0.6h; 2016: 0.9h; 2017: 8.6h; 2018: 41.4h, coverage 90%; 2019: 3.7h, coverage 86%; 2020: 6.3h, coverage 88%; 2021: 8.2h, coverage 90%; 2022: 10.2h, coverage 91%; 2023: 10.6h; 2024: 200.0h; 2025: 13.0h01002003000%50%100%0.6h20150.9h20168.6h201741.4h20183.7h20196.3h20208.2h202110.2h202210.6h2023200.0h202413.0h2025
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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 Georgia customers tracked each year.

Biggest outages in Johnson County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 6, 2015 19:00August 7, 2015 00:155h 15m255701
2September 22, 2015 16:45September 22, 2015 19:453h254762
3August 22, 2015 13:45August 22, 2015 14:3045m252189
4January 26, 2015 18:30January 26, 2015 20:452h 15m21669
5January 29, 2015 11:30January 29, 2015 18:307h144164
6November 1, 2015 15:30November 1, 2015 16:1545m8049
7July 2, 2015 21:15July 3, 2015 00:153h60142
8October 12, 2015 02:45October 12, 2015 04:301h 45m3756
9August 17, 2015 22:45August 18, 2015 00:001h 15m2121
10July 3, 2015 17:00July 3, 2015 21:004h1739

Outage episodes by size in 2015: 5 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 Johnson 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
Georgia Power Co20152.9 hrs1.501.9 hrs1.30
Jefferson Electric Member Corp20159.9 hrs1.461.6 hrs1.41
Washington Elec Member Corp20153.7 hrs-3.7 hrs-
Altamaha Electric Member Corp201590 min1.2531 min0.51

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 Georgia's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,550 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. Johnson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Johnson County, GA 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/georgia/johnson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON