massoutage

County annual report · FIPS 24017

2025 Charles County, MD Power Outage Report

In 2025, customers in Charles County, MD went without power for an average of 2.5 hours, a total of 181K customer-hours (Maryland average 4.2 hours). That ranks 22nd worst of 24 Maryland counties and 2243rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
73,494 customers
Customer-hours out
181K
Peak customers out
8,116
Outages ≥1,000 out
22
0 of 10,000+ · 978 total
Longest outage
2d 2h
began May 13, 2025
Rank in state
22nd/24
2243rd of 3,000 US

Compared with MD, the US and 2024

Charles County, MD average hours without power per customer compared with state and national averages, 2025Charles County 2.5 hours, Maryland average 4.2 hours, US average 5.9 hours, Charles County, 2024 2.9 hoursCharles CountyCharles County2.5hMaryland averageMaryland average4.2hUS averageUS average5.9hCharles County, 2024Charles County, 20242.9h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Charles County, MD customer-hours without power by month, 2025Jan 8,953, Feb 12K, Mar 7,649, Apr 15K, May 14K, Jun 37K, Jul 22K, Aug 19K, Sep 9,207, Oct 7,244, Nov 11K, Dec 17K010k20k30k40k8,953Jan12KFeb7,649Mar15KApr14KMay37KJun22KJul19KAug9,207Sep7,244Oct11KNov17KDec
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Customer-hours; June 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, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 7, 2025 18:00July 7, 2025 23:005h8,1162,884
2November 29, 2025 13:15November 29, 2025 19:306h 15m7,2167,201
3June 15, 2025 10:00June 16, 2025 14:001d 4h7,18921K
4August 20, 2025 12:45August 20, 2025 20:007h 15m4,8971,586
5June 19, 2025 14:00June 20, 2025 08:4518h 45m4,3554,743
6October 29, 2025 09:45October 29, 2025 10:3045m3,4821,740
7July 9, 2025 19:00July 10, 2025 17:3022h 30m3,3089,579
8August 11, 2025 12:00August 12, 2025 06:1518h 15m3,1255,867
9April 12, 2025 21:30April 13, 2025 03:155h 45m3,0916,607
10December 27, 2025 14:15December 27, 2025 17:153h2,4592,917

Outage episodes by size in 2025: 116 reached 100+ customers, 22 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 2025, 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 Inc20242.4 hrs1.311.9 hrs1.13

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 Maryland's customers in 2025; 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, 2025, 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/2025/maryland/charles-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON