massoutage

County annual report · FIPS 33019

2022 Sullivan County, NH Power Outage Report

In 2022, customers in Sullivan County, NH went without power for an average of 19.5 hours, a total of 392K customer-hours (New Hampshire average 8.6 hours). That ranks 3rd worst of 10 New Hampshire counties and 335th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
19.5
20,079 customers
Customer-hours out
392K
Peak customers out
8,776
Outages ≥1,000 out
15
0 of 10,000+ · 513 total
Longest outage
3d 14h
began December 16, 2022
Rank in state
3rd/10
335th of 2,976 US

Compared with NH, the US and 2021

Sullivan County, NH average hours without power per customer compared with state and national averages, 2022Sullivan County 19.5 hours, New Hampshire average 8.6 hours, US average 8.3 hours, Sullivan County, 2021 5.9 hoursSullivan CountySullivan County19.5hNew Hampshire averageNew Hampshire average8.6hUS averageUS average8.3hSullivan County, 2021Sullivan County, 20215.9h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Sullivan County, NH customer-hours without power by month, 2022Jan 7,659, Feb 3,428, Mar 7,911, Apr 8,131, May 31K, Jun 7,263, Jul 13K, Aug 32K, Sep 3,395, Oct 2,586, Nov 4,584, Dec 271K0100k200k300k7,659Jan3,428Feb7,911Mar8,131Apr31KMay7,263Jun13KJul32KAug3,395Sep2,586Oct4,584Nov271KDec
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Customer-hours; December 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, 2022

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 16, 2022 17:30December 20, 2022 08:003d 14h8,776173K
2December 14, 2022 17:15December 14, 2022 19:152h8,6727,303
3November 30, 2022 22:00December 2, 2022 01:451d 3h4,51541K
4March 18, 2022 14:30March 18, 2022 18:304h3,5091,380
5March 12, 2022 15:15March 13, 2022 00:008h 45m3,4622,190
6August 4, 2022 20:45August 5, 2022 22:301d 1h3,40712K
7May 16, 2022 22:45May 18, 2022 01:001d 2h3,15530K
8December 23, 2022 06:00December 26, 2022 06:003d2,99048K
9August 26, 2022 18:00August 27, 2022 10:1516h 15m2,62611K
10August 9, 2022 01:45August 9, 2022 05:303h 45m2,0996,130

Outage episodes by size in 2022: 64 reached 100+ customers, 15 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 2022, 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 NH20229.2 hrs1.4479 min0.68
Liberty Utilities (Granite State Electri20223.4 hrs1.1484 min0.64
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 2022; 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, 2022, 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/2022/new-hampshire/sullivan-county

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