massoutage

County annual report · FIPS 24039

2019 Somerset County, MD Power Outage Report

In 2019, customers in Somerset County, MD went without power for an average of 3.2 hours, a total of 46K customer-hours (Maryland average 2.6 hours). That ranks 6th worst of 24 Maryland counties and 1568th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
3.2
14,318 customers
Customer-hours out
46K
Peak customers out
2,935
Outages ≥1,000 out
3
0 of 10,000+ · 436 total
Longest outage
18h 45m
began April 20, 2019
Rank in state
6th/24
1568th of 2,945 US

Compared with MD, the US and 2018

Somerset County, MD average hours without power per customer compared with state and national averages, 2019Somerset County 3.2 hours, Maryland average 2.6 hours, US average 4.7 hours, Somerset County, 2018 3.5 hoursSomerset CountySomerset County3.2hMaryland averageMaryland average2.6hUS averageUS average4.7hSomerset County, 2018Somerset County, 20183.5h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Somerset County, MD customer-hours without power by month, 2019Jan 525, Feb 869, Mar 622, Apr 27K, May 3,661, Jun 2,584, Jul 5,778, Aug 1,647, Sep 624, Oct 436, Nov 1,224, Dec 1,185010k20k30k525Jan869Feb622Mar27KApr3,661May2,584Jun5,778Jul1,647Aug624Sep436Oct1,224Nov1,185Dec
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Customer-hours; April was the worst month.

Somerset County year over year

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Somerset County, MD: average hours without power per customer by year2015: 1.5h; 2016: 4.4h; 2017: 2.6h; 2018: 3.5h, coverage 98%; 2019: 3.2h, coverage 97%; 2020: 2.8h, coverage 98%; 2021: 0.9h, coverage 99%; 2022: 2.0h, coverage 99%; 2023: 1.8h; 2024: 2.8h; 2025: 2.2h02460%50%100%1.5h20154.4h20162.6h20173.5h20183.2h20192.8h20200.9h20212.0h20221.8h20232.8h20242.2h2025
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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 Somerset County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 23, 2019 15:15May 24, 2019 02:4511h 30m2,9351,750
2April 20, 2019 01:45April 20, 2019 20:3018h 45m1,62126K
3July 16, 2019 23:45July 17, 2019 06:156h 30m1,4292,147
4July 23, 2019 04:00July 23, 2019 09:455h 45m8942,672
5February 5, 2019 15:45February 5, 2019 17:151h 30m594295
6August 25, 2019 17:00August 25, 2019 19:002h404588
7November 1, 2019 05:00November 1, 2019 12:007h371722
8June 15, 2019 10:45June 15, 2019 13:302h 45m310313
9September 9, 2019 12:45September 9, 2019 14:301h 45m308232
10June 30, 2019 02:45June 30, 2019 10:458h293380

Outage episodes by size in 2019: 21 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 Somerset 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
A & N Electric Coop-----

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 ÷ 14,318 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. Somerset County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Somerset 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/somerset-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON