massoutage

County annual report · FIPS 24019

2018 Dorchester County, MD Power Outage Report

In 2018, customers in Dorchester County, MD went without power for an average of 1.5 hours, a total of 27K customer-hours (Maryland average 5.5 hours). That ranks 21st worst of 23 Maryland counties and 2097th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.5
18,093 customers
Customer-hours out
27K
Peak customers out
3,067
Outages ≥1,000 out
2
0 of 10,000+ · 334 total
Longest outage
1d 15h
began March 2, 2018
Rank in state
21st/23
2097th of 2,798 US

Compared with MD, the US and 2017

Dorchester County, MD average hours without power per customer compared with state and national averages, 2018Dorchester County 1.5 hours, Maryland average 5.5 hours, US average 5.6 hours, Dorchester County, 2017 1.9 hoursDorchester CountyDorchester County1.5hMaryland averageMaryland average5.5hUS averageUS average5.6hDorchester County, 2017Dorchester County, 2…1.9h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Dorchester County, MD customer-hours without power by month, 2018Jan 1,748, Feb 1,097, Mar 14K, Apr 2,351, May 1,244, Jun 471, Jul 762, Aug 698, Sep 539, Oct 344, Nov 377, Dec 2,86505k10k15k1,748Jan1,097Feb14KMar2,351Apr1,244May471Jun762Jul698Aug539Sep344Oct377Nov2,865Dec
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Customer-hours; March 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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 2, 2018 09:15March 4, 2018 00:151d 15h3,0678,549
2March 7, 2018 01:45March 7, 2018 05:003h 15m2,2055,502
3April 13, 2018 01:15April 13, 2018 10:008h 45m9592,109
4December 15, 2018 16:45December 15, 2018 22:155h 30m673677
5November 16, 2018 02:00November 16, 2018 08:306h 30m371244
6May 16, 2018 03:00May 16, 2018 07:154h 15m357829
7January 5, 2018 20:45January 5, 2018 23:302h 45m346798
8December 2, 2018 23:00December 3, 2018 07:008h3292,140
9February 26, 2018 09:30February 26, 2018 15:155h 45m163662
10July 25, 2018 23:00July 26, 2018 02:303h 30m138278

Outage episodes by size in 2018: 14 reached 100+ customers, 2 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Delmarva Power20182.8 hrs1.1286 min0.91
Choptank Electric Cooperative, Inc20183.8 hrs1.882.4 hrs1.34

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Maryland's customers in 2018; 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, 2018, 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/2018/maryland/dorchester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON