massoutage

County annual report · FIPS 24019

2023 Dorchester County, MD Power Outage Report

In 2023, customers in Dorchester County, MD went without power for an average of 1.6 hours, a total of 29K customer-hours (Maryland average 3.6 hours). That ranks 21st worst of 24 Maryland counties and 2432nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
1.6
18,093 customers
Customer-hours out
29K
Peak customers out
1,993
Outages ≥1,000 out
3
0 of 10,000+ · 598 total
Longest outage
1d 5h
began March 29, 2023
Rank in state
21st/24
2432nd of 2,977 US

Compared with MD, the US and 2022

Dorchester County, MD average hours without power per customer compared with state and national averages, 2023Dorchester County 1.6 hours, Maryland average 3.6 hours, US average 7.1 hours, Dorchester County, 2022 2.0 hoursDorchester CountyDorchester County1.6hMaryland averageMaryland average3.6hUS averageUS average7.1hDorchester County, 2022Dorchester County, 2…2.0h
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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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Dorchester County, MD customer-hours without power by month, 2023Jan 2,358, Feb 555, Mar 980, Apr 3,172, May 2,174, Jun 1,937, Jul 5,739, Aug 6,187, Sep 2,876, Oct 2,037, Nov 864, Dec 60702k4k6k8k2,358Jan555Feb980Mar3,172Apr2,174May1,937Jun5,739Jul6,187Aug2,876Sep2,037Oct864Nov607Dec
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Customer-hours; August was the worst month.

Dorchester County year over year

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Dorchester County, MD: average hours without power per customer by year2015: 1.2h; 2016: 2.7h; 2017: 1.9h; 2018: 1.5h, coverage 98%; 2019: 1.6h, coverage 97%; 2020: 4.1h, coverage 98%; 2021: 2.7h, coverage 99%; 2022: 2.0h, coverage 99%; 2023: 1.6h; 2024: 2.2h; 2025: 2.5h02460%50%100%1.2h20152.7h20161.9h20171.5h20181.6h20194.1h20202.7h20212.0h20221.6h20232.2h20242.5h2025
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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 Dorchester County, 2023

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
1May 1, 2023 12:15May 1, 2023 12:3015m1,993498
2July 3, 2023 23:15July 4, 2023 08:459h 30m1,2652,582
3January 31, 2023 13:30January 31, 2023 15:151h 45m1,1461,729
4May 19, 2023 12:45May 19, 2023 16:003h 15m945245
5August 10, 2023 12:15August 10, 2023 13:151h890226
6September 23, 2023 08:15September 23, 2023 10:302h 15m634950
7August 8, 2023 00:45August 9, 2023 01:001d5892,866
8July 20, 2023 09:45July 20, 2023 11:301h 45m555579
9August 1, 2023 17:15August 1, 2023 22:455h 30m499786
10May 10, 2023 12:30May 10, 2023 14:001h 30m498374

Outage episodes by size in 2023: 36 reached 100+ customers, 3 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 Dorchester 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
Delmarva Power20232.1 hrs0.7658 min0.60
Choptank Electric Cooperative, Inc20231.9 hrs1.251.9 hrs1.25

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 ÷ 18,093 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. Dorchester County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Dorchester 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/dorchester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON