Chester County, Pennsylvania Power Outages, 2015 to 2023

Chester County, Pennsylvania had 41 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.30 times the US outage time per person and 1.76 times the Pennsylvania rate. It ranks 15 of 65 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

4.6major outages per year

9 of 9years with a major outage

130 hrslongest major outage

Jun, Aughardest months

June and August made up 61% of this county's outage time. The largest outage on record began Aug 4, 2020, reached 110,546 customers, and left at least 200 customers out for 130.5 hours.

Outage time per resident, rated Pennsylvania counties

MostLeast

Outage impact by year

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

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	2,607,110	380	5
2016	655,146	399	3
2017	454,030	334	1
2018	2,034,345	355	6
2019	1,184,203	389	8
2020	6,654,374	325	5
2021	732,126	355	4
2022	529,365	378	3
2023	1,194,558	360	6

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
Aug 4, 2020	130.5	110,546	3,236,012
Jun 3, 2020	129.2	72,581	2,659,658
Jun 23, 2015	20.0	75,718	1,207,620
Mar 2, 2018	81.0	35,679	1,144,113
Jun 24, 2015	22.8	52,517	771,374

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.