massoutage

2019 New Hampshire Power Outage Report

In 2019, the average New Hampshire customer went without power for about 3.3 hours — the 24th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
3.3
Peak customers out
22,977
Rank (worst state)
24th
Counties affected
10

New Hampshire outages over the decade

Average hours without power per customer, 2019 highlighted.

2.3h20153.2h201614.3h20175.8h20183.3h20197.1h20203.4h20218.6h20229.5h202314.2h20243.8h2025

Hardest-hit New Hampshire counties in 2019

By peak customers out during the year's worst event.

1Rockingham County22,9772Merrimack County12,2543Grafton County8,9314Hillsborough County7,9825Strafford County7,8206Cheshire County7,0387Belknap County6,5698Carroll County5,5279Coos County4,66510Sullivan County4,560

Biggest New Hampshire outages of 2019

CountyBeganPeak customers out
Rockingham CountyOctober 17, 201922,977
Merrimack CountyOctober 31, 201912,254
Merrimack CountyOctober 17, 201912,030
Grafton CountyOctober 17, 20198,931
Hillsborough CountyNovember 23, 20197,982
Strafford CountyOctober 17, 20197,820
Cheshire CountyOctober 17, 20197,038
Grafton CountyJanuary 9, 20196,618
Belknap CountyOctober 17, 20196,569
Hillsborough CountyOctober 31, 20196,161
New Hampshire by year:20252024202320222021202020182017
Other states in 2019:WVNCMILACAVT

Part of the 2019 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.