massoutage

2018 New Hampshire Power Outage Report

In 2018, the average New Hampshire customer went without power for about 5.8 hours — the 13th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
5.8
Peak customers out
30,706
Rank (worst state)
13th
Counties affected
10

New Hampshire outages over the decade

Average hours without power per customer, 2018 highlighted.

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

Hardest-hit New Hampshire counties in 2018

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

1Rockingham County30,7062Hillsborough County28,3123Carroll County14,3084Cheshire County13,1155Strafford County11,4096Merrimack County9,9087Sullivan County7,9998Grafton County7,0129Belknap County3,66510Coos County3,015

Biggest New Hampshire outages of 2018

CountyBeganPeak customers out
Rockingham CountyJune 18, 201830,706
Rockingham CountyMarch 8, 201829,794
Hillsborough CountyApril 4, 201828,312
Hillsborough CountyJune 18, 201822,246
Carroll CountyNovember 27, 201814,308
Cheshire CountyJune 18, 201813,115
Hillsborough CountyMarch 28, 201813,098
Rockingham CountyMay 5, 201811,429
Strafford CountyJune 18, 201811,409
Hillsborough CountyMay 5, 201811,162
New Hampshire by year:20252024202320222021202020192017
Other states in 2018:NCVAWVMARIVT

Part of the 2018 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.