massoutage

County annual report · FIPS 33001

2017 Belknap County, NH Power Outage Report

In 2017, customers in Belknap County, NH went without power for an average of 34.8 hours, a total of 1.1M customer-hours (New Hampshire average 14.3 hours). That ranks 1st worst of 10 New Hampshire counties and 138th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
34.8
32,434 customers
Customer-hours out
1.1M
Peak customers out
20,394
Outages ≥1,000 out
10
1 of 10,000+ · 485 total
Longest outage
5d 22h
began October 30, 2017
Rank in state
1st/10
138th of 2,786 US

Compared with NH, the US and 2016

Belknap County, NH average hours without power per customer compared with state and national averages, 2017Belknap County 34.8 hours, New Hampshire average 14.3 hours, US average 7.4 hours, Belknap County, 2016 2.6 hoursBelknap CountyBelknap County34.8hNew Hampshire averageNew Hampshire average14.3hUS averageUS average7.4hBelknap County, 2016Belknap County, 20162.6h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

CSVJSON
Belknap County, NH customer-hours without power by month, 2017Jan 3,283, Feb 556, Mar 66K, Apr 3,542, May 3,260, Jun 854, Jul 1,360, Aug 14K, Sep 2,001, Oct 767K, Nov 254K, Dec 14K0200k400k600k800k3,283Jan556Feb66KMar3,542Apr3,260May854Jun1,360Jul14KAug2,001Sep767KOct254KNov14KDec
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Customer-hours; October was the worst month.

Belknap County year over year

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Belknap County, NH: average hours without power per customer by year2015: 1.8h; 2016: 2.6h; 2017: 34.8h; 2018: 5.4h, coverage 88%; 2019: 6.4h, coverage 99%; 2020: 14.0h, coverage 99%; 2021: 8.2h, coverage 99%; 2022: 24.2h, coverage 99%; 2023: 11.8h; 2024: 35.0h; 2025: 10.5h0102030400%50%100%1.8h20152.6h201634.8h20175.4h20186.4h201914.0h20208.2h202124.2h202211.8h202335.0h202410.5h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.

Biggest outages in Belknap County, 2017

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 30, 2017 03:30November 5, 2017 01:455d 22h20,3941.0M
2March 14, 2017 18:30March 16, 2017 09:301d 15h6,14358K
3December 23, 2017 18:00December 24, 2017 20:451d 2h3,35612K
4August 4, 2017 21:30August 5, 2017 07:159h 45m2,61911K
5November 29, 2017 17:30November 30, 2017 03:009h 30m2,0366,687
6November 8, 2017 21:00November 8, 2017 22:301h 30m1,7821,595
7March 5, 2017 10:15March 5, 2017 13:002h 45m1,2012,421
8October 25, 2017 01:45October 25, 2017 03:151h 30m1,1261,688
9October 6, 2017 11:45October 6, 2017 13:301h 45m1,1251,422
10April 4, 2017 13:30April 4, 2017 15:151h 45m1,0031,254

Outage episodes by size in 2017: 38 reached 100+ customers, 10 reached 1,000+ customers, 1 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Belknap County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Public Service Co of NH201716.1 hrs1.922.0 hrs1.11
New Hampshire Elec Coop Inc-----
Town of Wolfeboro - (NH)-----
New Hampton Village Precinct-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of New Hampshire's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 32,434 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Belknap County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Belknap County, NH annual power outage report, 2017, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2017/new-hampshire/belknap-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON