massoutage

County annual report · FIPS 24005

2024 Baltimore County, MD Power Outage Report

In 2024, customers in Baltimore County, MD went without power for an average of 3.3 hours, a total of 1.2M customer-hours (Maryland average 2.8 hours). That ranks 9th worst of 24 Maryland counties and 2027th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
370,224 customers
Customer-hours out
1.2M
Peak customers out
13,347
Outages ≥1,000 out
18
3 of 10,000+ · 129 total
Longest outage
59d 7h
began May 26, 2024
Rank in state
9th/24
2027th of 2,990 US

Compared with MD, the US and 2023

Baltimore County, MD average hours without power per customer compared with state and national averages, 2024Baltimore County 3.3 hours, Maryland average 2.8 hours, US average 12.6 hours, Baltimore County, 2023 4.6 hoursBaltimore CountyBaltimore County3.3hMaryland averageMaryland average2.8hUS averageUS average12.6hBaltimore County, 2023Baltimore County, 20…4.6h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Baltimore County, MD customer-hours without power by month, 2024Jan 190K, Feb 24K, Mar 54K, Apr 88K, May 33K, Jun 98K, Jul 118K, Aug 470K, Sep 41K, Oct 23K, Nov 26K, Dec 40K0200k400k600k190KJan24KFeb54KMar88KApr33KMay98KJun118KJul470KAug41KSep23KOct26KNov40KDec
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Customer-hours; August was the worst month.

Baltimore County year over year

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Baltimore County, MD: average hours without power per customer by year2015: 1.7h; 2016: 1.8h; 2017: 2.0h; 2018: 6.3h, coverage 98%; 2019: 2.4h, coverage 97%; 2020: 1.7h, coverage 98%; 2021: 2.8h, coverage 99%; 2022: 7.8h, coverage 99%; 2023: 4.6h; 2024: 3.3h; 2025: 5.5h024680%50%100%1.7h20151.8h20162.0h20176.3h20182.4h20191.7h20202.8h20217.8h20224.6h20233.3h20245.5h2025
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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 Baltimore County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 3, 2024 13:00January 24, 2024 11:1520d 22h13,347186K
2August 2, 2024 12:15August 22, 2024 06:4519d 18h11,546453K
3May 26, 2024 01:15July 24, 2024 08:4559d 7h10,881206K
4April 2, 2024 14:00April 7, 2024 12:004d 22h7,91856K
5February 20, 2024 13:00February 24, 2024 03:303d 14h4,7325,626
6March 9, 2024 17:15March 13, 2024 10:003d 16h2,47635K
7April 30, 2024 11:15May 4, 2024 00:153d 13h2,4416,023
8December 2, 2024 12:15December 27, 2024 04:4524d 16h2,34229K
9April 22, 2024 10:45April 23, 2024 17:451d 7h2,1702,646
10July 24, 2024 11:15August 2, 2024 11:159d2,05023K

Outage episodes by size in 2024: 63 reached 100+ customers, 18 reached 1,000+ customers, 3 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 Baltimore County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Baltimore Gas & Electric Co20242.2 hrs0.8067 min0.63

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 370,224 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. Baltimore County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Baltimore County, MD annual power outage report, 2024, 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/2024/maryland/baltimore-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON