Somerset County power outages

Maryland outage history from 2015 to 2023, with the largest outages and a backup battery estimate.

Somerset County, Maryland had 5 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.41 times the US outage time per person and 1.04 times the Maryland rate. It ranks 11 of 24 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.6major outages per year
5 of 9years with a major outage
20 hrslongest major outage
Apr, Aughardest months

April and August made up 32% of this county's outage time. The largest outage on record began Apr 20, 2019, reached 1,621 customers, and left at least 200 customers out for 18.5 hours.

Outage time per resident, rated Maryland counties
MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

0
20K
40K
60K
80K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
201513,472130
201647,098351
201726,528191
201842,595131
201935,000141
202030,067151
20214,875110
202215,393200
202312,446170

When outages hit

Share of this county's customer-hours by month.

0%
5%
10%
15%
20%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Apr 20, 201918.51,62126,254
Aug 4, 202017.83,37522,150
Nov 28, 20186.02,94216,750
Mar 2, 201811.02,92715,321
Feb 24, 201620.57367,921

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

  • A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
  • Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
  • Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.