massoutage

County annual report · FIPS 37135

2015 Orange County, NC Power Outage Report

In 2015, customers in Orange County, NC went without power for an average of 19.4 hours, a total of 372K customer-hours (North Carolina average 7.5 hours). That ranks 14th worst of 93 North Carolina counties and 122nd of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
19.4
19,163 customers
Customer-hours out
372K
Peak customers out
14,879
Outages ≥1,000 out
18
1 of 10,000+ · 936 total
Longest outage
3d 12h
began July 3, 2015
Rank in state
14th/93
122nd of 2,484 US

Compared with NC, the US

Orange County, NC average hours without power per customer compared with state and national averages, 2015Orange County 19.4 hours, North Carolina average 7.5 hours, US average 2.9 hoursOrange CountyOrange County19.4hNorth Carolina averageNorth Carolina avera…7.5hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Orange County, NC customer-hours without power by month, 2015Jan 8,347, Feb 238K, Mar 4,660, Apr 5,099, May 2,557, Jun 54K, Jul 20K, Aug 12K, Sep 13K, Oct 7,965, Nov 2,738, Dec 3,4150100k200k300k8,347Jan238KFeb4,660Mar5,099Apr2,557May54KJun20KJul12KAug13KSep7,965Oct2,738Nov3,415Dec
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Customer-hours; February was the worst month.

Orange County year over year

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Orange County, NC: average hours without power per customer by year2015: 19.4h; 2016: 11.1h; 2017: 7.5h; 2018: 66.4h, coverage 82%; 2019: 13.0h, coverage 90%; 2020: 17.0h, coverage 91%; 2021: 10.8h, coverage 92%; 2022: 54.9h, coverage 92%; 2023: 24.3h; 2024: 31.4h; 2025: 29.0h0204060800%50%100%19.4h201511.1h20167.5h201766.4h201813.0h201917.0h202010.8h202154.9h202224.3h202331.4h202429.0h2025
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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 North Carolina customers tracked each year.

Biggest outages in Orange County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 26, 2015 06:00February 27, 2015 23:301d 17h14,879204K
2February 14, 2015 23:00February 16, 2015 03:001d 4h6,08831K
3June 18, 2015 19:15June 19, 2015 23:001d 3h4,89028K
4January 29, 2015 15:00January 29, 2015 20:305h 30m3,4073,416
5August 11, 2015 21:45August 12, 2015 05:157h 30m2,8517,513
6July 21, 2015 23:15July 22, 2015 10:4511h 30m2,41813K
7June 27, 2015 03:30June 28, 2015 09:001d 5h2,3529,613
8June 9, 2015 19:30June 10, 2015 00:455h 15m1,9756,044
9May 29, 2015 18:30May 29, 2015 20:151h 45m1,974684
10March 4, 2015 03:00March 4, 2015 12:159h 15m1,6271,364

Outage episodes by size in 2015: 72 reached 100+ customers, 18 reached 1,000+ customers, 1 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 Orange 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
Duke Energy Progress - (NC)20154.8 hrs1.903.0 hrs1.65
Duke Energy Carolinas, LLC20155.3 hrs1.292.6 hrs1.02
Piedmont Electric Member Corp20155.2 hrs1.811.7 hrs1.13
Duke Energy-----

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 North Carolina's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 19,163 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. Orange County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Orange County, NC 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/north-carolina/orange-county

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