massoutage

County annual report · FIPS 24017

2019 Charles County, MD Power Outage Report

In 2019, customers in Charles County, MD went without power for an average of 2.4 hours, a total of 178K customer-hours (Maryland average 2.6 hours). That ranks 12th worst of 24 Maryland counties and 1874th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
73,494 customers
Customer-hours out
178K
Peak customers out
6,525
Outages ≥1,000 out
19
0 of 10,000+ · 1,002 total
Longest outage
1d 9h
began July 6, 2019
Rank in state
12th/24
1874th of 2,945 US

Compared with MD, the US and 2018

Charles County, MD average hours without power per customer compared with state and national averages, 2019Charles County 2.4 hours, Maryland average 2.6 hours, US average 4.7 hours, Charles County, 2018 7.0 hoursCharles CountyCharles County2.4hMaryland averageMaryland average2.6hUS averageUS average4.7hCharles County, 2018Charles County, 20187.0h
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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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Charles County, MD customer-hours without power by month, 2019Jan 13K, Feb 7,425, Mar 6,680, Apr 30K, May 13K, Jun 11K, Jul 25K, Aug 18K, Sep 20K, Oct 8,640, Nov 19K, Dec 6,906010k20k30k40k13KJan7,425Feb6,680Mar30KApr13KMay11KJun25KJul18KAug20KSep8,640Oct19KNov6,906Dec
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Customer-hours; April was the worst month.

Charles County year over year

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Charles County, MD: average hours without power per customer by year2015: 3.1h; 2016: 1.7h; 2017: 3.6h; 2018: 7.0h, coverage 98%; 2019: 2.4h, coverage 97%; 2020: 3.0h, coverage 98%; 2021: 2.4h, coverage 99%; 2022: 9.4h, coverage 99%; 2023: 5.5h; 2024: 2.9h; 2025: 2.5h02.557.5100%50%100%3.1h20151.7h20163.6h20177.0h20182.4h20193.0h20202.4h20219.4h20225.5h20232.9h20242.5h2025
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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 Maryland customers tracked each year.

Biggest outages in Charles County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 11, 2019 21:00September 12, 2019 01:454h 45m6,5256,764
2April 15, 2019 00:30April 16, 2019 00:0023h 30m6,21622K
3October 31, 2019 22:45November 2, 2019 03:301d 4h5,90113K
4January 1, 2019 07:15January 1, 2019 16:008h 45m3,9883,262
5May 11, 2019 11:15May 11, 2019 22:4511h 30m3,0932,862
6September 2, 2019 22:15September 3, 2019 10:3012h 15m2,0753,303
7July 4, 2019 20:00July 5, 2019 03:307h 30m2,0225,032
8February 4, 2019 00:15February 4, 2019 03:002h 45m1,8853,756
9October 29, 2019 12:30October 29, 2019 17:154h 45m1,8311,458
10January 24, 2019 10:15January 24, 2019 19:459h 30m1,7961,435

Outage episodes by size in 2019: 130 reached 100+ customers, 19 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 Charles County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southern Maryland Elec Coop Inc-----

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 Maryland's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 73,494 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. Charles County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Charles County, MD 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/maryland/charles-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON