County annual report · FIPS 33015
2019 Rockingham County, NH Power Outage Report
In 2019, customers in Rockingham County, NH went without power for an average of 2.8 hours, a total of 432K customer-hours (New Hampshire average 3.3 hours). That ranks 8th worst of 10 New Hampshire counties and 1727th of 2,945 nationally.
Compared with NH, the US and 2018
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Rockingham County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 17, 2019 03:45 | October 20, 2019 01:00 | 2d 21h | 22,977 | 260K |
| 2 | February 25, 2019 09:15 | February 27, 2019 01:30 | 1d 16h | 5,048 | 23K |
| 3 | October 31, 2019 17:45 | November 2, 2019 22:45 | 2d 5h | 4,521 | 26K |
| 4 | February 7, 2019 02:45 | February 7, 2019 06:45 | 4h | 4,379 | 2,098 |
| 5 | April 3, 2019 20:00 | April 5, 2019 04:00 | 1d 8h | 2,159 | 12K |
| 6 | October 13, 2019 15:15 | October 13, 2019 17:15 | 2h | 1,937 | 486 |
| 7 | March 18, 2019 10:00 | March 18, 2019 20:00 | 10h | 1,887 | 4,590 |
| 8 | April 22, 2019 16:30 | April 22, 2019 18:00 | 1h 30m | 1,516 | 615 |
| 9 | November 24, 2019 18:00 | November 24, 2019 23:00 | 5h | 1,511 | 1,154 |
| 10 | March 4, 2019 09:30 | March 4, 2019 14:45 | 5h 15m | 1,509 | 3,475 |
Outage episodes by size in 2019: 116 reached 100+ customers, 19 reached 1,000+ customers, 1 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 Rockingham County reported on EIA Form 861 for 2019, 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 |
| Unitil Energy Systems | 2018 | 8.2 hrs | 1.94 | 1.9 hrs | 1.20 |
| 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 ÷ 154,048 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. Rockingham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Rockingham 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/rockingham-county