Sullivan County, New Hampshire Power Outages, 2015 to 2023

Sullivan County, New Hampshire had 31 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 2.15 times the US outage time per person and 1.71 times the New Hampshire rate. It ranks 4 of 10 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

3.4major outages per year

9 of 9years with a major outage

90 hrslongest major outage

Jul, Novhardest months

July and November made up 33% of this county's outage time. The largest outage on record began Jul 19, 2015, reached 19,880 customers, and left at least 200 customers out for 31.5 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.

100K

200K

300K

400K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	318,803	40	3
2016	83,703	43	1
2017	218,961	39	2
2018	338,328	62	6
2019	153,466	36	5
2020	237,308	58	5
2021	91,344	61	1
2022	366,862	67	5
2023	278,255	52	3

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
Jul 19, 2015	31.5	19,880	251,768
Mar 14, 2023	62.5	9,262	186,237
Nov 27, 2018	47.5	7,999	184,029
Oct 30, 2017	90.5	5,190	170,516
Dec 17, 2022	44.8	8,776	169,065

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.