Suffolk County, New York Power Outages, 2015 to 2023

Suffolk County, New York had 8 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.72 times the US outage time per person and 1.16 times the New York rate. It ranks 39 of 61 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.9major outages per year

5 of 9years with a major outage

228 hrslongest major outage

Aug, Octhardest months

August and October made up 73% of this county's outage time. The largest outage on record began Aug 4, 2020, reached 197,669 customers, and left at least 200 customers out for 227.5 hours.

Outage time per resident, rated New York counties

MostLeast

Outage impact by year

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

10M

15M

20M

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	350,257	426	0
2016	1,396,242	783	2
2017	1,535,860	684	2
2018	1,198,635	532	1
2019	2,582,532	476	2
2020	15,619,203	483	1
2021	559,569	452	0
2022	491,606	507	0
2023	503,805	492	0

When outages hit

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

20%

40%

60%

80%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Aug 4, 2020	227.5	197,669	14,925,382
Jun 30, 2019	57.5	55,387	947,125
Oct 29, 2017	67.5	33,891	667,506
Aug 23, 2019	61.0	40,156	608,875
Mar 7, 2018	67.2	26,339	428,228

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.