massoutage

County annual report · FIPS 51161

2015 Roanoke County, VA Power Outage Report

In 2015, customers in Roanoke County, VA went without power for an average of 5.8 hours, a total of 181K customer-hours (Virginia average 2.7 hours). That ranks 33rd worst of 127 Virginia counties and 486th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
5.8
31,398 customers
Customer-hours out
181K
Peak customers out
4,182
Outages ≥1,000 out
13
0 of 10,000+ · 448 total
Longest outage
9d 3h
began June 20, 2015
Rank in state
33rd/127
486th of 2,484 US

Compared with VA, the US

Roanoke County, VA average hours without power per customer compared with state and national averages, 2015Roanoke County 5.8 hours, Virginia average 2.7 hours, US average 2.9 hoursRoanoke CountyRoanoke County5.8hVirginia averageVirginia average2.7hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Roanoke County, VA customer-hours without power by month, 2015Jan 7,845, Feb 12K, Mar 3,789, Apr 11K, May 11K, Jun 24K, Jul 17K, Aug 7,138, Sep 59K, Oct 8,567, Nov 13K, Dec 5,085020k40k60k7,845Jan12KFeb3,789Mar11KApr11KMay24KJun17KJul7,138Aug59KSep8,567Oct13KNov5,085Dec
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Customer-hours; September was the worst month.

Roanoke County year over year

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Roanoke County, VA: average hours without power per customer by year2015: 5.8h; 2016: 15.3h; 2017: 4.7h; 2018: no data; 2019: no data; 2020: 0.9h, coverage 97%; 2021: 9.8h, coverage 97%; 2022: 22.1h, coverage 97%; 2023: 10.7h; 2024: 28.3h; 2025: 29.1h01020300%50%100%5.8h201515.3h20164.7h2017n/a2018n/a20190.9h20209.8h202122.1h202210.7h202328.3h202429.1h2025
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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 Virginia customers tracked each year.

Biggest outages in Roanoke County, 2015

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 4, 2015 21:00September 6, 2015 01:151d 4h4,18233K
2September 26, 2015 01:45September 30, 2015 21:304d 19h2,87123K
3July 2, 2015 14:15July 2, 2015 15:301h 15m2,7183,396
4June 11, 2015 11:45June 11, 2015 17:456h2,7144,796
5February 19, 2015 14:00February 19, 2015 21:007h2,6275,304
6May 6, 2015 13:45May 7, 2015 18:001d 4h1,8783,592
7August 12, 2015 16:15August 12, 2015 18:001h 45m1,810906
8July 13, 2015 04:45July 14, 2015 21:151d 16h1,6167,144
9May 26, 2015 06:00May 26, 2015 09:453h 45m1,5453,589
10November 14, 2015 04:45November 14, 2015 11:156h 30m1,4577,761

Outage episodes by size in 2015: 79 reached 100+ customers, 13 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 Roanoke County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Appalachian Power Co201511.7 hrs2.417.9 hrs2.21
Craig-Botetourt Electric Coop20159.6 hrs3.566.9 hrs2.96
City of Salem - (VA)201521 min0.2312 min0.13

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 Virginia's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 31,398 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. Roanoke County has data for 2015–2017, 2020–2025.

Cite this report

MassOutage (massoutage.com), Roanoke County, VA 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/virginia/roanoke-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON