County annual report · FIPS 33007
2020 Coos County, NH Power Outage Report
In 2020, customers in Coos County, NH went without power for an average of 6.9 hours, a total of 166K customer-hours (New Hampshire average 7.1 hours). That ranks 6th worst of 10 New Hampshire counties and 1102nd of 3,019 nationally.
Compared with NH, the US and 2019
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Coos County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 27, 2020 09:00 | February 28, 2020 20:00 | 1d 11h | 6,019 | 45K |
| 2 | August 4, 2020 23:30 | August 8, 2020 04:15 | 3d 4h | 5,295 | 33K |
| 3 | October 17, 2020 10:15 | October 18, 2020 06:30 | 20h 15m | 4,631 | 28K |
| 4 | December 5, 2020 22:30 | December 7, 2020 04:45 | 1d 6h | 1,889 | 14K |
| 5 | May 9, 2020 19:00 | May 9, 2020 22:15 | 3h 15m | 1,744 | 3,354 |
| 6 | August 2, 2020 23:00 | August 3, 2020 01:30 | 2h 30m | 1,609 | 3,218 |
| 7 | September 30, 2020 10:30 | October 1, 2020 02:15 | 15h 45m | 1,566 | 4,767 |
| 8 | May 16, 2020 00:15 | May 16, 2020 04:30 | 4h 15m | 1,159 | 725 |
| 9 | March 20, 2020 11:00 | March 20, 2020 13:45 | 2h 45m | 981 | 1,215 |
| 10 | August 22, 2020 12:15 | August 22, 2020 14:15 | 2h | 826 | 1,051 |
Outage episodes by size in 2020: 49 reached 100+ customers, 8 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 2020, 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 | 2020 | 7.7 hrs | 1.49 | 1.6 hrs | 0.81 |
| 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 2020; 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, 2020, 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/2020/new-hampshire/coos-county