Harford County, Maryland Power Outages, 2015 to 2023

Harford County, Maryland had 22 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.57 times the US outage time per person and 1.44 times the Maryland rate. It ranks 8 of 24 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.4major outages per year

8 of 9years with a major outage

116 hrslongest major outage

Jul, Marhardest months

July and March made up 55% of this county's outage time. The largest outage on record began Jul 12, 2022, reached 31,551 customers, and left at least 200 customers out for 115.8 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.

0.25M

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	229,272	82	2
2016	108,586	93	2
2017	100,603	101	0
2018	729,263	131	2
2019	196,442	95	2
2020	173,649	89	4
2021	146,426	85	1
2022	970,366	98	4
2023	650,161	106	5

When outages hit

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

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Jul 12, 2022	115.8	31,551	790,306
Mar 2, 2018	25.5	45,995	419,372
Aug 7, 2023	12.5	17,771	153,269
Jul 28, 2023	46.5	30,600	145,950
Aug 8, 2023	58.0	9,315	133,776

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.