massoutage

County annual report · FIPS 24017

2023 Charles County, MD Power Outage Report

In 2023, customers in Charles County, MD went without power for an average of 5.5 hours, a total of 401K customer-hours (Maryland average 3.6 hours). That ranks 5th worst of 24 Maryland counties and 1387th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
5.5
73,494 customers
Customer-hours out
401K
Peak customers out
20,058
Outages ≥1,000 out
14
1 of 10,000+ · 896 total
Longest outage
11d 7h
began October 19, 2023
Rank in state
5th/24
1387th of 2,977 US

Compared with MD, the US and 2022

Charles County, MD average hours without power per customer compared with state and national averages, 2023Charles County 5.5 hours, Maryland average 3.6 hours, US average 7.1 hours, Charles County, 2022 9.4 hoursCharles CountyCharles County5.5hMaryland averageMaryland average3.6hUS averageUS average7.1hCharles County, 2022Charles County, 20229.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Charles County, MD customer-hours without power by month, 2023Jan 6,481, Feb 8,763, Mar 4,325, Apr 24K, May 6,872, Jun 14K, Jul 269K, Aug 16K, Sep 19K, Oct 14K, Nov 4,642, Dec 14K0100k200k300k6,481Jan8,763Feb4,325Mar24KApr6,872May14KJun269KJul16KAug19KSep14KOct4,642Nov14KDec
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Customer-hours; July 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, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 29, 2023 09:30August 1, 2023 05:452d 20h20,058251K
2December 18, 2023 12:15December 19, 2023 02:3014h 15m7,5886,397
3February 3, 2023 13:15February 3, 2023 18:305h 15m6,9651,801
4September 16, 2023 08:15September 16, 2023 09:451h 30m5,8375,607
5April 1, 2023 20:45April 3, 2023 01:001d 4h4,06517K
6October 19, 2023 14:00October 30, 2023 21:0011d 7h3,2738,422
7January 22, 2023 17:15January 22, 2023 18:451h 30m2,1792,570
8February 17, 2023 17:15February 18, 2023 06:1513h2,0723,875
9June 6, 2023 13:00June 6, 2023 16:303h 30m1,3931,155
10September 10, 2023 08:30September 10, 2023 20:3012h1,3822,663

Outage episodes by size in 2023: 99 reached 100+ customers, 14 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 Charles County reported on EIA Form 861 for 2023, 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 Inc20233.4 hrs1.331.7 hrs1.09

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 Maryland's customers in 2023; 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, 2023, 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/2023/maryland/charles-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON