massoutage

County annual report · FIPS 33019

2019 Sullivan County, NH Power Outage Report

In 2019, customers in Sullivan County, NH went without power for an average of 8.8 hours, a total of 176K customer-hours (New Hampshire average 3.3 hours). That ranks 2nd worst of 10 New Hampshire counties and 631st of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
8.8
20,079 customers
Customer-hours out
176K
Peak customers out
4,560
Outages ≥1,000 out
6
0 of 10,000+ · 360 total
Longest outage
3d 1h
began October 31, 2019
Rank in state
2nd/10
631st of 2,945 US

Compared with NH, the US and 2018

Sullivan County, NH average hours without power per customer compared with state and national averages, 2019Sullivan County 8.8 hours, New Hampshire average 3.3 hours, US average 4.7 hours, Sullivan County, 2018 18.1 hoursSullivan CountySullivan County8.8hNew Hampshire averageNew Hampshire average3.3hUS averageUS average4.7hSullivan County, 2018Sullivan County, 201818.1h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Sullivan County, NH customer-hours without power by month, 2019Jan 27K, Feb 18K, Mar 1,153, Apr 14K, May 4,837, Jun 1,730, Jul 210, Aug 1,441, Sep 1,253, Oct 13K, Nov 87K, Dec 6,200025k50k75k100k27KJan18KFeb1,153Mar14KApr4,837May1,730Jun210Jul1,441Aug1,253Sep13KOct87KNov6,200Dec
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Customer-hours; November was the worst month.

Sullivan County year over year

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Sullivan County, NH: average hours without power per customer by year2015: 16.9h; 2016: 5.0h; 2017: 11.9h; 2018: 18.1h, coverage 88%; 2019: 8.8h, coverage 99%; 2020: 13.0h, coverage 99%; 2021: 5.9h, coverage 99%; 2022: 19.5h, coverage 99%; 2023: 15.1h; 2024: 14.2h; 2025: 10.2h051015200%50%100%16.9h20155.0h201611.9h201718.1h20188.8h201913.0h20205.9h202119.5h202215.1h202314.2h202410.2h2025
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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 Sullivan County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 31, 2019 22:00November 3, 2019 23:003d 1h4,56085K
2January 9, 2019 10:30January 11, 2019 05:451d 19h4,53424K
3February 4, 2019 21:30February 5, 2019 02:004h 30m2,5195,058
4February 25, 2019 08:00February 26, 2019 17:301d 9h2,4028,634
5April 3, 2019 19:45April 5, 2019 03:301d 7h1,65611K
6December 9, 2019 23:15December 10, 2019 06:006h 45m1,0282,065
7October 17, 2019 02:00October 19, 2019 18:152d 16h93511K
8January 29, 2019 00:30January 29, 2019 03:152h 45m5951,312
9April 26, 2019 18:45April 27, 2019 01:306h 45m5171,061
10February 7, 2019 00:45February 7, 2019 05:455h4991,863

Outage episodes by size in 2019: 49 reached 100+ customers, 6 reached 1,000+ customers, 0 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 Sullivan County reported on EIA Form 861 for 2019, 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 NH20186.4 hrs1.882.0 hrs1.07
Liberty Utilities (Granite State Electri201819.0 hrs1.872.6 hrs1.02
New Hampshire Elec Coop Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of New Hampshire's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 20,079 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. Sullivan County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Sullivan County, NH annual power outage report, 2019, 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/2019/new-hampshire/sullivan-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON