Allegany County power outages

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

Allegany County, Maryland had 21 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 0.92 times the US outage time per person and 2.34 times the Maryland rate. It ranks 3 of 24 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.3major outages per year
7 of 9years with a major outage
78 hrslongest major outage
Feb, Marhardest months

February and March made up 38% of this county's outage time. The largest outage on record began Feb 12, 2019, reached 6,327 customers, and left at least 200 customers out for 77.8 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
200K
400K
600K
800K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
201565,521450
201643,497380
201769,756531
2018183,144623
2019444,516487
202079,497531
2021122,567552
2022186,589624
2023160,396583

When outages hit

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

0%
10%
20%
30%
40%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Feb 12, 201977.86,327141,730
Feb 24, 201971.83,66292,041
Mar 4, 202348.87,68789,314
Mar 2, 201853.53,95171,443
Dec 23, 202254.83,45862,982

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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Counties ranked nearby

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.