County annual report · FIPS 33011
2022 Hillsborough County, NH Power Outage Report
In 2022, customers in Hillsborough County, NH went without power for an average of 4.8 hours, a total of 941K customer-hours (New Hampshire average 8.6 hours). That ranks 10th worst of 10 New Hampshire counties and 1469th of 2,976 nationally.
Compared with NH, the US and 2021
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Hillsborough County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 23, 2022 07:45 | December 27, 2022 05:00 | 3d 21h | 25,082 | 505K |
| 2 | June 7, 2022 12:15 | June 8, 2022 02:45 | 14h 30m | 22,267 | 17K |
| 3 | March 8, 2022 02:45 | March 9, 2022 04:00 | 1d 1h | 12,171 | 41K |
| 4 | December 16, 2022 17:00 | December 19, 2022 09:15 | 2d 16h | 10,585 | 166K |
| 5 | August 8, 2022 13:15 | August 9, 2022 07:45 | 18h 30m | 2,747 | 2,533 |
| 6 | July 21, 2022 17:15 | July 23, 2022 07:30 | 1d 14h | 2,701 | 23K |
| 7 | November 30, 2022 21:15 | December 2, 2022 04:45 | 1d 7h | 2,112 | 12K |
| 8 | May 22, 2022 19:00 | May 24, 2022 20:00 | 2d 1h | 2,106 | 10K |
| 9 | November 12, 2022 07:30 | November 12, 2022 18:45 | 11h 15m | 1,863 | 3,663 |
| 10 | August 5, 2022 15:00 | August 7, 2022 00:00 | 1d 9h | 1,798 | 13K |
Outage episodes by size in 2022: 167 reached 100+ customers, 28 reached 1,000+ customers, 4 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 Hillsborough County reported on EIA Form 861 for 2022, 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 | 2022 | 9.2 hrs | 1.44 | 79 min | 0.68 |
| Liberty Utilities (Granite State Electri | 2022 | 3.4 hrs | 1.14 | 84 min | 0.64 |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 196,402 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. Hillsborough County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hillsborough County, NH annual power outage report, 2022, 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/2022/new-hampshire/hillsborough-county