massoutage

2015 New Hampshire Power Outage Report

In 2015, the average New Hampshire customer went without power for about 2.3 hours, the 26th worst of 49 states (US average 2.8 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
2.3
vs prior year
-
no earlier year loaded
Customer-hours out
1.7M
Peak customers out
30,946
across the state at once
EAGLE-I coverage
n/a
of NH customers
Counties reporting
10

New Hampshire year over year

New Hampshire: average hours without power per customer by year2015: 2.3h; 2016: 3.2h; 2017: 14.3h; 2018: 5.8h, coverage 88%; 2019: 3.3h, coverage 99%; 2020: 7.1h, coverage 99%; 2021: 3.4h, coverage 99%; 2022: 8.6h, coverage 99%; 2023: 9.5h; 2024: 14.2h; 2025: 3.8h0510150%50%100%2.3h20153.2h201614.3h20175.8h20183.3h20197.1h20203.4h20218.6h20229.5h202314.2h20243.8h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2015

Customer-hours without power across New Hampshire; July was the worst.

CSVJSON
New Hampshire customer-hours without power by month, 2015Jan 79K, Feb 55K, Mar 139K, Apr 67K, May 13K, Jun 150K, Jul 465K, Aug 309K, Sep 93K, Oct 133K, Nov 100K, Dec 114K0200k400k600k79KJan55KFeb139KMar67KApr13KMay150KJun465KJul309KAug93KSep133KOct100KNov114KDec
Use the arrow keys to read values.

All 10 New Hampshire counties, 2015

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Sullivan County16.9339K20,07919,880257
2Carroll County3.9103K26,0098,328267
3Coos County3.993K24,0387,202172
4Cheshire County2.485K36,0145,208378
5Merrimack County2.3271K115,89927,800455
6Rockingham County1.8277K154,04811,482473
7Belknap County1.858K32,4346,092221
8Grafton County1.783K49,8954,590303
9Hillsborough County1.5287K196,40210,751712
10Strafford County1.3121K89,73814,806353

Biggest New Hampshire outages of 2015

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Merrimack County, NHDecember 5, 2015 13:30December 5, 2015 17:454h 15m27,80052K
2Sullivan County, NHJuly 19, 2015 22:30July 21, 2015 16:151d 17h19,880252K
3Strafford County, NHAugust 15, 2015 20:45August 16, 2015 00:003h 15m14,80624K
4Rockingham County, NHSeptember 20, 2015 06:30September 20, 2015 08:452h 15m11,4829,182
5Hillsborough County, NHMarch 17, 2015 20:00March 18, 2015 18:0022h10,75133K
6Rockingham County, NHAugust 11, 2015 16:30August 11, 2015 19:453h 15m9,5704,845
7Carroll County, NHJune 30, 2015 14:00June 30, 2015 14:4545m8,3286,246
8Carroll County, NHAugust 21, 2015 21:30August 22, 2015 09:1511h 45m7,96237K
9Rockingham County, NHJune 26, 2015 06:00June 26, 2015 06:3030m7,7783,889
10Coos County, NHJune 23, 2015 21:15June 24, 2015 03:156h7,20214K
11Rockingham County, NHNovember 20, 2015 15:15November 20, 2015 19:304h 15m6,7082,844
12Rockingham County, NHNovember 17, 2015 19:00November 17, 2015 21:002h6,7081,766
13Strafford County, NHApril 7, 2015 17:15April 7, 2015 18:151h6,4924,623
14Merrimack County, NHJuly 20, 2015 00:15July 21, 2015 16:001d 15h6,37663K
15Rockingham County, NHJuly 30, 2015 18:30July 30, 2015 19:451h 15m6,3267,908
16Strafford County, NHAugust 19, 2015 02:15August 19, 2015 04:152h6,1646,006
17Belknap County, NHAugust 15, 2015 22:15August 16, 2015 02:454h 30m6,09220K
18Merrimack County, NHOctober 29, 2015 18:00October 30, 2015 01:157h 15m5,53510K
19Rockingham County, NHOctober 29, 2015 18:15October 30, 2015 04:009h 45m5,5287,598
20Merrimack County, NHAugust 27, 2015 13:30August 27, 2015 16:453h 15m5,4544,469
21Hillsborough County, NHAugust 25, 2015 13:15August 26, 2015 09:3020h 15m5,44025K
22Strafford County, NHMarch 17, 2015 21:30March 18, 2015 09:1511h 45m5,34919K
23Sullivan County, NHSeptember 9, 2015 00:30September 9, 2015 02:001h 30m5,2847,845
24Cheshire County, NHDecember 8, 2015 16:00December 8, 2015 16:4545m5,2082,372
25Hillsborough County, NHFebruary 23, 2015 14:30February 23, 2015 15:451h 15m5,1481,298
EAGLE-I tracked about n/a of New Hampshire's electricity customers in 2015; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
New Hampshire by year:2025202420232022202120202019201820172016
Other states in 2015:WVWAMINCRILAOKNJ

Part of the 2015 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.