massoutage

County annual report · FIPS 24019

2019 Dorchester County, MD Power Outage Report

In 2019, customers in Dorchester County, MD went without power for an average of 1.6 hours, a total of 30K customer-hours (Maryland average 2.6 hours). That ranks 21st worst of 24 Maryland counties and 2214th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
1.6
18,093 customers
Customer-hours out
30K
Peak customers out
3,681
Outages ≥1,000 out
5
0 of 10,000+ · 576 total
Longest outage
19h
began June 28, 2019
Rank in state
21st/24
2214th of 2,945 US

Compared with MD, the US and 2018

Dorchester County, MD average hours without power per customer compared with state and national averages, 2019Dorchester County 1.6 hours, Maryland average 2.6 hours, US average 4.7 hours, Dorchester County, 2018 1.5 hoursDorchester CountyDorchester County1.6hMaryland averageMaryland average2.6hUS averageUS average4.7hDorchester County, 2018Dorchester County, 2…1.5h
Use the arrow keys to read values.
Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Dorchester County, MD customer-hours without power by month, 2019Jan 647, Feb 693, Mar 322, Apr 3,121, May 3,244, Jun 3,781, Jul 3,685, Aug 6,387, Sep 546, Oct 5,181, Nov 1,840, Dec 26802k4k6k8k647Jan693Feb322Mar3,121Apr3,244May3,781Jun3,685Jul6,387Aug546Sep5,181Oct1,840Nov268Dec
Use the arrow keys to read values.
Customer-hours; August was the worst month.

Dorchester County year over year

CSVJSON
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
Use the arrow keys to read values.
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, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 21, 2019 12:00June 21, 2019 12:4545m3,6811,017
2October 9, 2019 12:30October 9, 2019 14:302h2,9823,640
3July 5, 2019 10:00July 5, 2019 15:155h 15m2,6851,162
4August 17, 2019 19:00August 17, 2019 20:451h 45m1,2071,262
5November 5, 2019 19:00November 5, 2019 19:1515m1,114279
6August 9, 2019 19:45August 10, 2019 08:4513h7424,184
7November 1, 2019 01:15November 1, 2019 09:158h6931,139
8July 8, 2019 10:00July 8, 2019 12:452h 45m631947
9May 20, 2019 21:45May 21, 2019 01:003h 15m4091,250
10April 8, 2019 17:45April 8, 2019 22:004h 15m3941,570

Outage episodes by size in 2019: 33 reached 100+ customers, 5 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 2019, 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 97% of Maryland's customers in 2019; 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, 2019, 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/2019/maryland/dorchester-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON