County annual report · FIPS 33003
2025 Carroll County, NH Power Outage Report
In 2025, customers in Carroll County, NH went without power for an average of 14.5 hours, a total of 376K customer-hours (New Hampshire average 3.8 hours). That ranks 1st worst of 10 New Hampshire counties and 530th 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 Carroll 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 | March 7, 2025 09:15 | March 9, 2025 21:30 | 2d 12h | 13,683 | 120K |
| 2 | May 2, 2025 13:30 | May 2, 2025 19:30 | 6h | 9,633 | 25K |
| 3 | December 29, 2025 05:30 | December 31, 2025 04:30 | 1d 23h | 7,619 | 77K |
| 4 | October 31, 2025 04:45 | November 1, 2025 22:30 | 1d 17h | 5,935 | 29K |
| 5 | November 4, 2025 10:00 | November 5, 2025 04:30 | 18h 30m | 4,872 | 14K |
| 6 | August 16, 2025 00:15 | August 16, 2025 00:30 | 15m | 4,421 | 1,105 |
| 7 | August 30, 2025 15:30 | August 30, 2025 19:30 | 4h | 2,996 | 3,748 |
| 8 | September 25, 2025 13:15 | September 26, 2025 06:00 | 16h 45m | 2,338 | 1,215 |
| 9 | June 24, 2025 21:15 | June 25, 2025 20:00 | 22h 45m | 2,300 | 5,102 |
| 10 | November 12, 2025 22:45 | November 13, 2025 00:15 | 1h 30m | 2,294 | 575 |
Outage episodes by size in 2025: 81 reached 100+ customers, 17 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 Carroll 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 | - | - | - | - | - |
| Town of Wolfeboro - (NH) | - | - | - | - | - |
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 ÷ 26,009 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. Carroll County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Carroll 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/carroll-county