massoutage

County annual report · FIPS 24027

2025 Howard County, MD Power Outage Report

In 2025, customers in Howard County, MD went without power for an average of 3.3 hours, a total of 480K customer-hours (Maryland average 4.2 hours). That ranks 13th worst of 24 Maryland counties and 1963rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
146,094 customers
Customer-hours out
480K
Peak customers out
16,396
Outages ≥1,000 out
15
1 of 10,000+ · 366 total
Longest outage
25d 9h
began July 16, 2025
Rank in state
13th/24
1963rd of 3,000 US

Compared with MD, the US and 2024

Howard County, MD average hours without power per customer compared with state and national averages, 2025Howard County 3.3 hours, Maryland average 4.2 hours, US average 5.9 hours, Howard County, 2024 1.6 hoursHoward CountyHoward County3.3hMaryland averageMaryland average4.2hUS averageUS average5.9hHoward County, 2024Howard County, 20241.6h
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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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Howard County, MD customer-hours without power by month, 2025Jan 9,255, Feb 191K, Mar 20K, Apr 11K, May 65K, Jun 28K, Jul 51K, Aug 19K, Sep 12K, Oct 8,663, Nov 20K, Dec 46K050k100k150k200k9,255Jan191KFeb20KMar11KApr65KMay28KJun51KJul19KAug12KSep8,663Oct20KNov46KDec
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Customer-hours; February was the worst month.

Howard County year over year

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Howard County, MD: average hours without power per customer by year2015: 1.2h; 2016: 3.3h; 2017: 1.0h; 2018: 5.0h, coverage 98%; 2019: 2.4h, coverage 97%; 2020: 1.1h, coverage 98%; 2021: 1.3h, coverage 99%; 2022: 2.4h, coverage 99%; 2023: 1.7h; 2024: 1.6h; 2025: 3.3h02460%50%100%1.2h20153.3h20161.0h20175.0h20182.4h20191.1h20201.3h20212.4h20221.7h20231.6h20243.3h2025
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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 Howard County, 2025

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
1February 14, 2025 10:15February 24, 2025 11:3010d 1h16,396187K
2May 8, 2025 12:00May 22, 2025 11:3013d 23h5,27156K
3July 8, 2025 11:45July 10, 2025 21:452d 10h5,07117K
4July 16, 2025 13:45August 10, 2025 23:1525d 9h3,46824K
5December 29, 2025 14:45January 1, 2026 00:002d 9h3,08332K
6August 11, 2025 13:15August 12, 2025 04:0014h 45m2,9181,658
7July 11, 2025 09:30July 14, 2025 00:152d 14h2,3815,528
8January 1, 2025 15:00January 2, 2025 14:3023h 30m2,1514,883
9June 18, 2025 06:45June 27, 2025 18:459d 12h2,10121K
10November 5, 2025 13:00November 8, 2025 18:153d 5h1,53810K

Outage episodes by size in 2025: 67 reached 100+ customers, 15 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 Howard County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
The Potomac Edison Company20243.7 hrs1.323.4 hrs1.28
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 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 146,094 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. Howard County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Howard 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/howard-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON