County annual report · FIPS 33015
2024 Rockingham County, NH Power Outage Report
In 2024, customers in Rockingham County, NH went without power for an average of 15.3 hours, a total of 2.4M customer-hours (New Hampshire average 14.2 hours). That ranks 3rd worst of 10 New Hampshire counties and 654th of 2,990 nationally.
Compared with NH, the US and 2023
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Rockingham County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 4, 2024 00:45 | April 9, 2024 21:15 | 5d 20h | 64,404 | 1.8M |
| 2 | March 23, 2024 21:45 | March 27, 2024 23:00 | 4d 1h | 8,520 | 162K |
| 3 | June 20, 2024 17:15 | June 21, 2024 09:45 | 16h 30m | 7,849 | 31K |
| 4 | August 9, 2024 13:00 | August 10, 2024 09:30 | 20h 30m | 6,933 | 46K |
| 5 | March 21, 2024 08:45 | March 21, 2024 23:30 | 14h 45m | 6,931 | 4,548 |
| 6 | February 29, 2024 03:15 | March 1, 2024 09:15 | 1d 6h | 6,928 | 59K |
| 7 | March 11, 2024 13:15 | March 12, 2024 16:15 | 1d 3h | 4,135 | 13K |
| 8 | June 5, 2024 14:00 | June 6, 2024 08:15 | 18h 15m | 3,945 | 17K |
| 9 | July 16, 2024 13:15 | July 16, 2024 18:15 | 5h | 3,482 | 1,080 |
| 10 | August 2, 2024 22:00 | August 3, 2024 00:15 | 2h 15m | 3,326 | 2,072 |
Outage episodes by size in 2024: 171 reached 100+ customers, 46 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 2024, 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 | 2024 | 13.1 hrs | 1.60 | 82 min | 0.74 |
| Liberty Utilities (Granite State Electri | 2024 | 6.2 hrs | 1.55 | 1.5 hrs | 0.82 |
| Unitil Energy Systems | 2024 | 9.9 hrs | 1.73 | 1.6 hrs | 1.00 |
| 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 n/a of New Hampshire's customers in 2024; 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, 2024, 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/2024/new-hampshire/rockingham-county