County annual report · FIPS 33019
2018 Sullivan County, NH Power Outage Report
In 2018, customers in Sullivan County, NH went without power for an average of 18.1 hours, a total of 363K customer-hours (New Hampshire average 5.8 hours). That ranks 1st worst of 10 New Hampshire counties and 313th of 2,798 nationally.
Compared with NH, the US and 2017
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Sullivan County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 27, 2018 01:45 | December 1, 2018 17:00 | 4d 15h | 7,999 | 194K |
| 2 | December 2, 2018 23:45 | December 3, 2018 23:45 | 1d | 4,413 | 4,468 |
| 3 | April 16, 2018 13:15 | April 18, 2018 15:00 | 2d 1h | 3,215 | 46K |
| 4 | July 27, 2018 17:15 | July 28, 2018 17:30 | 1d | 3,118 | 8,070 |
| 5 | July 7, 2018 10:30 | July 7, 2018 13:45 | 3h 15m | 2,622 | 8,522 |
| 6 | April 4, 2018 23:00 | April 6, 2018 15:30 | 1d 16h | 2,124 | 18K |
| 7 | October 24, 2018 16:30 | October 24, 2018 23:15 | 6h 45m | 2,028 | 4,477 |
| 8 | May 20, 2018 18:15 | May 20, 2018 22:15 | 4h | 1,890 | 2,453 |
| 9 | May 4, 2018 23:30 | May 6, 2018 23:45 | 2d | 1,885 | 26K |
| 10 | October 1, 2018 12:00 | October 1, 2018 12:45 | 45m | 1,815 | 1,361 |
Outage episodes by size in 2018: 64 reached 100+ customers, 16 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Public Service Co of NH | 2018 | 6.4 hrs | 1.88 | 2.0 hrs | 1.07 |
| Liberty Utilities (Granite State Electri | 2018 | 19.0 hrs | 1.87 | 2.6 hrs | 1.02 |
| 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 88% of New Hampshire's customers in 2018; 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, 2018, 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/2018/new-hampshire/sullivan-county