massoutage

County annual report · FIPS 51121

2017 Montgomery County, VA Power Outage Report

In 2017, customers in Montgomery County, VA went without power for an average of 5.2 hours, a total of 168K customer-hours (Virginia average 3.7 hours). That ranks 62nd worst of 125 Virginia counties and 945th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
5.2
32,573 customers
Customer-hours out
168K
Peak customers out
6,308
Outages ≥1,000 out
14
0 of 10,000+ · 492 total
Longest outage
7d 3h
began July 10, 2017
Rank in state
62nd/125
945th of 2,786 US

Compared with VA, the US and 2016

Montgomery County, VA average hours without power per customer compared with state and national averages, 2017Montgomery County 5.2 hours, Virginia average 3.7 hours, US average 7.4 hours, Montgomery County, 2016 8.5 hoursMontgomery CountyMontgomery County5.2hVirginia averageVirginia average3.7hUS averageUS average7.4hMontgomery County, 2016Montgomery County, 2…8.5h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Montgomery County, VA customer-hours without power by month, 2017Jan 4,888, Feb 8,466, Mar 33K, Apr 7,761, May 16K, Jun 22K, Jul 14K, Aug 7,419, Sep 14K, Oct 32K, Nov 2,251, Dec 5,960010k20k30k40k4,888Jan8,466Feb33KMar7,761Apr16KMay22KJun14KJul7,419Aug14KSep32KOct2,251Nov5,960Dec
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Customer-hours; March was the worst month.

Montgomery County year over year

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Montgomery County, VA: average hours without power per customer by year2015: 6.6h; 2016: 8.5h; 2017: 5.2h; 2018: 36.0h, coverage 96%; 2019: 7.2h, coverage 97%; 2020: 7.2h, coverage 97%; 2021: 9.3h, coverage 97%; 2022: 10.7h, coverage 97%; 2023: 8.2h; 2024: 12.0h; 2025: 38.9h0102030400%50%100%6.6h20158.5h20165.2h201736.0h20187.2h20197.2h20209.3h202110.7h20228.2h202312.0h202438.9h2025
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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 Montgomery County, 2017

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
1October 9, 2017 03:15October 12, 2017 00:452d 21h6,3084,560
2September 3, 2017 00:45September 3, 2017 06:005h 15m2,1644,755
3March 1, 2017 11:30March 3, 2017 19:302d 8h1,54725K
4September 2, 2017 01:15September 2, 2017 04:303h 15m1,5364,992
5July 10, 2017 18:00July 17, 2017 21:157d 3h1,5173,205
6March 8, 2017 16:45March 9, 2017 11:0018h 15m1,5083,769
7December 14, 2017 01:30December 14, 2017 04:002h 30m1,463418
8October 16, 2017 08:15October 16, 2017 21:1513h1,4578,101
9December 18, 2017 16:45December 18, 2017 18:001h 15m1,4051,756
10October 16, 2017 04:45October 16, 2017 05:1530m1,349341

Outage episodes by size in 2017: 74 reached 100+ customers, 14 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 2017, 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 Co201711.0 hrs2.187.4 hrs1.97
Craig-Botetourt Electric Coop201715.9 hrs5.0410.9 hrs4.22
City of Radford - (VA)-----
Virginia Tech Electric Service-----

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 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 32,573 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, VA annual power outage report, 2017, 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/2017/virginia/montgomery-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON