massoutage

County annual report · FIPS 51740

2019 Portsmouth city, VA Power Outage Report

In 2019, customers in Portsmouth city, VA went without power for an average of 3.6 hours, a total of 158K customer-hours (Virginia average 6.4 hours). That ranks 101st worst of 128 Virginia counties and 1423rd of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
3.6
43,205 customers
Customer-hours out
158K
Peak customers out
21,038
Outages ≥1,000 out
15
2 of 10,000+ · 653 total
Longest outage
1d 10h
began December 28, 2019
Rank in state
101st/128
1423rd of 2,945 US

Compared with VA, the US and 2018

Portsmouth city, VA average hours without power per customer compared with state and national averages, 2019Portsmouth city 3.6 hours, Virginia average 6.4 hours, US average 4.7 hours, Portsmouth city, 2018 9.8 hoursPortsmouth cityPortsmouth city3.6hVirginia averageVirginia average6.4hUS averageUS average4.7hPortsmouth city, 2018Portsmouth city, 20189.8h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Portsmouth city, VA customer-hours without power by month, 2019Jan 2,579, Feb 1,935, Mar 2,627, Apr 4,197, May 48K, Jun 10K, Jul 12K, Aug 21K, Sep 18K, Oct 21K, Nov 15K, Dec 1,389020k40k60k2,579Jan1,935Feb2,627Mar4,197Apr48KMay10KJun12KJul21KAug18KSep21KOct15KNov1,389Dec
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Customer-hours; May was the worst month.

Portsmouth city year over year

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Portsmouth city, VA: average hours without power per customer by year2015: 2.2h; 2016: 9.9h; 2017: 2.1h; 2018: 9.8h, coverage 96%; 2019: 3.6h, coverage 97%; 2020: 15.2h, coverage 97%; 2021: 2.1h, coverage 97%; 2022: 2.4h, coverage 97%; 2023: 2.1h; 2024: 2.0h; 2025: 3.6h051015200%50%100%2.2h20159.9h20162.1h20179.8h20183.6h201915.2h20202.1h20212.4h20222.1h20232.0h20243.6h2025
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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 Portsmouth city, 2019

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
1May 2, 2019 10:00May 2, 2019 14:004h21,03831K
2July 30, 2019 19:15July 30, 2019 21:452h 30m11,5364,657
3August 6, 2019 17:15August 7, 2019 02:459h 30m5,50910K
4May 10, 2019 20:15May 11, 2019 02:456h 30m4,0971,903
5November 18, 2019 18:15November 19, 2019 11:0016h 45m3,6059,512
6September 7, 2019 09:00September 8, 2019 02:1517h 15m2,9056,108
7August 28, 2019 18:00August 29, 2019 00:306h 30m2,872740
8September 5, 2019 14:00September 5, 2019 14:4545m2,738692
9October 8, 2019 11:30October 9, 2019 01:0013h 30m1,7162,411
10September 6, 2019 10:30September 7, 2019 02:1515h 45m1,7019,504

Outage episodes by size in 2019: 79 reached 100+ customers, 15 reached 1,000+ customers, 2 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 Portsmouth city reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Virginia Electric & Power Co-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 97% of Virginia's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 43,205 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. Portsmouth city has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Portsmouth city, VA annual power outage report, 2019, 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/). https://massoutage.com/reports/2019/virginia/portsmouth-city

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON