massoutage

County annual report · FIPS 24033

2022 Prince George's County, MD Power Outage Report

In 2022, customers in Prince George's County, MD went without power for an average of 5.6 hours, a total of 2.0M customer-hours (Maryland average 5.5 hours). That ranks 10th worst of 24 Maryland counties and 1282nd of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
5.6
349,773 customers
Customer-hours out
2.0M
Peak customers out
64,522
Outages ≥1,000 out
42
5 of 10,000+ · 445 total
Longest outage
24d 9h
began July 20, 2022
Rank in state
10th/24
1282nd of 2,976 US

Compared with MD, the US and 2021

Prince George's County, MD average hours without power per customer compared with state and national averages, 2022Prince George's County 5.6 hours, Maryland average 5.5 hours, US average 8.3 hours, Prince George's County, 2021 2.3 hoursPrince George's CountyPrince George's Coun…5.6hMaryland averageMaryland average5.5hUS averageUS average8.3hPrince George's County, 2021Prince George's Coun…2.3h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Prince George's County, MD customer-hours without power by month, 2022Jan 292K, Feb 58K, Mar 48K, Apr 23K, May 90K, Jun 67K, Jul 1.1M, Aug 105K, Sep 30K, Oct 25K, Nov 19K, Dec 114K0500k1M1.5M292KJan58KFeb48KMar23KApr90KMay67KJun1.1MJul105KAug30KSep25KOct19KNov114KDec
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Customer-hours; July was the worst month.

Prince George's County year over year

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Prince George's County, MD: average hours without power per customer by year2015: 1.6h; 2016: 2.3h; 2017: 1.5h; 2018: 6.9h, coverage 98%; 2019: 1.8h, coverage 97%; 2020: 1.9h, coverage 98%; 2021: 2.3h, coverage 99%; 2022: 5.6h, coverage 99%; 2023: 2.7h; 2024: 2.0h; 2025: 3.1h024680%50%100%1.6h20152.3h20161.5h20176.9h20181.8h20191.9h20202.3h20215.6h20222.7h20232.0h20243.1h2025
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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 Prince George's County, 2022

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
1July 12, 2022 11:15July 20, 2022 11:308d64,522990K
2January 3, 2022 12:45January 11, 2022 11:457d 23h19,563275K
3May 16, 2022 10:00May 18, 2022 05:451d 19h14,14338K
4May 30, 2022 21:30June 5, 2022 04:455d 7h13,29922K
5July 20, 2022 12:45August 13, 2022 22:3024d 9h13,023118K
6December 22, 2022 14:15December 30, 2022 01:457d 11h9,32081K
7July 2, 2022 04:00July 7, 2022 04:455d7,11256K
8August 19, 2022 11:45August 21, 2022 09:301d 21h6,3673,446
9March 31, 2022 11:30April 1, 2022 09:1521h 45m6,29815K
10May 18, 2022 08:15May 30, 2022 09:4512d 1h4,92827K

Outage episodes by size in 2022: 149 reached 100+ customers, 42 reached 1,000+ customers, 5 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 Prince George's County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Baltimore Gas & Electric Co20225.1 hrs1.1683 min0.82
Southern Maryland Elec Coop Inc20228.2 hrs1.961.9 hrs1.32
Potomac Electric Power Co20221.5 hrs0.6541 min0.47

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Maryland's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 349,773 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. Prince George's County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Prince George's County, MD annual power outage report, 2022, 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/2022/maryland/prince-georges-county

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