County annual report · FIPS 33017
2025 Strafford County, NH Power Outage Report
In 2025, customers in Strafford County, NH went without power for an average of 1.6 hours, a total of 144K customer-hours (New Hampshire average 3.8 hours). That ranks 10th worst of 10 New Hampshire counties and 2574th of 3,000 nationally.
Compared with NH, the US and 2024
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Strafford County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 16, 2025 00:15 | August 16, 2025 00:30 | 15m | 5,195 | 1,299 |
| 2 | March 7, 2025 07:30 | March 9, 2025 00:15 | 1d 16h | 4,499 | 29K |
| 3 | February 17, 2025 15:45 | February 18, 2025 16:00 | 1d | 2,154 | 7,001 |
| 4 | September 20, 2025 19:15 | September 21, 2025 01:15 | 6h | 1,983 | 3,817 |
| 5 | March 17, 2025 11:45 | March 17, 2025 19:15 | 7h 30m | 1,949 | 1,975 |
| 6 | September 6, 2025 20:30 | September 7, 2025 10:15 | 13h 45m | 1,890 | 3,961 |
| 7 | November 4, 2025 10:00 | November 5, 2025 01:15 | 15h 15m | 1,706 | 6,993 |
| 8 | December 13, 2025 13:45 | December 13, 2025 16:00 | 2h 15m | 1,650 | 2,097 |
| 9 | December 29, 2025 10:00 | December 30, 2025 16:45 | 1d 6h | 1,640 | 4,012 |
| 10 | June 20, 2025 11:15 | June 21, 2025 08:15 | 21h | 1,552 | 6,064 |
Outage episodes by size in 2025: 88 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 Strafford County reported on EIA Form 861 for 2025, 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 |
| 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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 89,738 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. Strafford County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Strafford County, NH annual power outage report, 2025, 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/2025/new-hampshire/strafford-county