Anne Arundel County, Maryland Power Outages, 2015 to 2023

Anne Arundel County, Maryland had 19 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.37 times the US outage time per person and 0.93 times the Maryland rate. It ranks 13 of 24 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.1major outages per year

9 of 9years with a major outage

56 hrslongest major outage

Jul, Aughardest months

July and August made up 34% of this county's outage time. The largest outage on record began Jan 3, 2022, reached 34,497 customers, and left at least 200 customers out for 55.5 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.

0.25M

0.5M

0.75M

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	503,669	231	3
2016	399,152	255	1
2017	309,280	247	2
2018	601,080	302	1
2019	389,193	250	1
2020	487,758	159	3
2021	529,014	186	3
2022	919,800	200	3
2023	712,884	171	2

When outages hit

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

10%

15%

20%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Jan 3, 2022	55.5	34,497	237,878
Dec 23, 2022	55.0	18,158	217,086
Jun 1, 2023	7.5	46,003	212,746
Aug 4, 2020	35.8	19,913	207,762
Jul 1, 2021	31.8	23,020	172,120

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.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

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.