County annual report · FIPS 33007
2018 Coos County, NH Power Outage Report
In 2018, customers in Coos County, NH went without power for an average of 5.6 hours, a total of 134K customer-hours (New Hampshire average 5.8 hours). That ranks 6th worst of 10 New Hampshire counties and 968th 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 Coos 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 | May 5, 2018 01:15 | May 6, 2018 22:45 | 1d 21h | 3,015 | 46K |
| 2 | November 20, 2018 16:15 | November 20, 2018 21:45 | 5h 30m | 1,955 | 6,861 |
| 3 | November 20, 2018 23:00 | November 21, 2018 00:00 | 1h | 1,952 | 1,952 |
| 4 | October 18, 2018 11:45 | October 18, 2018 19:45 | 8h | 1,864 | 1,550 |
| 5 | September 22, 2018 03:00 | September 22, 2018 18:00 | 15h | 1,721 | 2,434 |
| 6 | November 13, 2018 13:45 | November 14, 2018 18:45 | 1d 5h | 1,182 | 4,807 |
| 7 | October 27, 2018 18:15 | October 27, 2018 18:30 | 15m | 1,113 | 278 |
| 8 | November 3, 2018 19:00 | November 4, 2018 14:15 | 19h 15m | 989 | 5,719 |
| 9 | March 19, 2018 11:45 | March 19, 2018 13:45 | 2h | 963 | 931 |
| 10 | April 16, 2018 13:15 | April 17, 2018 21:00 | 1d 7h | 798 | 7,117 |
Outage episodes by size in 2018: 56 reached 100+ customers, 7 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 Coos 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 |
| 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 ÷ 24,038 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. Coos County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Coos 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/coos-county