Coos County, New Hampshire Power Outages, 2015 to 2023

Coos County, New Hampshire had 20 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 2.20 times the US outage time per person and 1.74 times the New Hampshire rate. It ranks 2 of 10 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.2major outages per year

8 of 9years with a major outage

114 hrslongest major outage

Oct, Dechardest months

October and December made up 55% of this county's outage time. The largest outage on record began Oct 30, 2017, reached 8,259 customers, and left at least 200 customers out for 114.0 hours.

Outage time per resident, rated New Hampshire counties

MostLeast

Outage impact by year

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

200K

400K

600K

800K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	77,774	41	0
2016	52,057	36	1
2017	484,708	29	1
2018	107,691	51	5
2019	122,088	26	1
2020	146,643	40	4
2021	99,406	40	2
2022	342,474	24	4
2023	70,492	42	2

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
Oct 30, 2017	114.0	8,259	438,599
Dec 23, 2022	65.0	6,516	153,972
Nov 1, 2019	44.8	4,665	96,944
Dec 17, 2022	14.2	6,289	80,047
Jul 21, 2022	10.8	5,784	60,957

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.