2023 New Hampshire Power Outage Report
In 2023, the average New Hampshire customer went without power for about 9.5 hours, the 13th worst of 51 states (US average 6.7 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
9.5
vs prior year
▲ 10%
vs 2022
Customer-hours out
7.1M
Peak customers out
84,493
across the state at once
EAGLE-I coverage
n/a
of NH customers
Counties reporting
10
New Hampshire year over year
All 10 New Hampshire counties, 2023
Ranked by average hours without power per customer. Each county links to its annual report.
| # | County | Hrs / customer | Customer-hours | Customers | Peak out | Events |
|---|---|---|---|---|---|---|
| 1 | Cheshire County | 32.4 | 1.2M | 36,014 | 19,245 | 603 |
| 2 | Sullivan County | 15.1 | 303K | 20,079 | 9,262 | 478 |
| 3 | Carroll County | 15.1 | 392K | 26,009 | 10,047 | 545 |
| 4 | Belknap County | 11.8 | 383K | 32,434 | 4,877 | 537 |
| 5 | Hillsborough County | 10.1 | 2.0M | 196,402 | 29,343 | 995 |
| 6 | Strafford County | 8.6 | 773K | 89,738 | 20,731 | 624 |
| 7 | Rockingham County | 7.3 | 1.1M | 154,048 | 21,774 | 1,070 |
| 8 | Merrimack County | 5.3 | 620K | 115,899 | 12,583 | 887 |
| 9 | Grafton County | 5.1 | 255K | 49,895 | 6,013 | 721 |
| 10 | Coos County | 3.5 | 85K | 24,038 | 4,305 | 394 |
Biggest New Hampshire outages of 2023
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Hillsborough County, NH | March 14, 2023 04:30 | March 18, 2023 07:15 | 4d 2h | 29,343 | 1.1M |
| 2 | Hillsborough County, NH | January 23, 2023 01:45 | January 27, 2023 22:15 | 4d 20h | 22,819 | 626K |
| 3 | Rockingham County, NH | January 23, 2023 01:30 | January 27, 2023 10:45 | 4d 9h | 21,774 | 451K |
| 4 | Strafford County, NH | January 23, 2023 02:15 | January 27, 2023 04:15 | 4d 2h | 20,731 | 571K |
| 5 | Strafford County, NH | May 28, 2023 21:15 | May 29, 2023 02:30 | 5h 15m | 20,525 | 6,152 |
| 6 | Cheshire County, NH | March 14, 2023 06:45 | March 18, 2023 06:45 | 4d | 19,245 | 706K |
| 7 | Rockingham County, NH | March 14, 2023 09:30 | March 18, 2023 00:45 | 3d 15h | 16,849 | 297K |
| 8 | Rockingham County, NH | December 18, 2023 10:30 | December 20, 2023 18:00 | 2d 7h | 15,872 | 146K |
| 9 | Hillsborough County, NH | June 18, 2023 15:15 | June 18, 2023 21:15 | 6h | 13,729 | 3,501 |
| 10 | Merrimack County, NH | March 14, 2023 07:15 | March 18, 2023 04:15 | 3d 21h | 12,583 | 302K |
| 11 | Rockingham County, NH | May 28, 2023 20:30 | May 28, 2023 23:30 | 3h | 12,417 | 3,260 |
| 12 | Cheshire County, NH | January 23, 2023 02:30 | January 27, 2023 06:15 | 4d 3h | 11,380 | 364K |
| 13 | Rockingham County, NH | September 8, 2023 18:45 | September 10, 2023 06:00 | 1d 11h | 10,991 | 35K |
| 14 | Carroll County, NH | December 18, 2023 09:00 | December 21, 2023 00:15 | 2d 15h | 10,047 | 77K |
| 15 | Sullivan County, NH | March 14, 2023 07:30 | March 18, 2023 02:00 | 3d 18h | 9,262 | 188K |
| 16 | Merrimack County, NH | December 18, 2023 08:45 | December 19, 2023 21:45 | 1d 13h | 6,843 | 37K |
| 17 | Merrimack County, NH | September 16, 2023 11:45 | September 17, 2023 07:45 | 20h | 6,431 | 18K |
| 18 | Hillsborough County, NH | July 19, 2023 18:30 | July 20, 2023 00:15 | 5h 45m | 6,223 | 1,938 |
| 19 | Grafton County, NH | February 3, 2023 22:45 | February 5, 2023 02:30 | 1d 3h | 6,013 | 6,104 |
| 20 | Grafton County, NH | September 27, 2023 21:45 | September 27, 2023 23:00 | 1h 15m | 5,761 | 2,686 |
| 21 | Carroll County, NH | December 3, 2023 23:30 | December 5, 2023 22:15 | 1d 22h | 5,716 | 50K |
| 22 | Merrimack County, NH | January 23, 2023 03:30 | January 26, 2023 11:45 | 3d 8h | 5,651 | 120K |
| 23 | Rockingham County, NH | August 8, 2023 14:45 | August 8, 2023 19:00 | 4h 15m | 5,445 | 10K |
| 24 | Strafford County, NH | December 18, 2023 08:30 | December 20, 2023 03:15 | 1d 18h | 5,392 | 51K |
| 25 | Grafton County, NH | December 18, 2023 09:45 | December 21, 2023 00:45 | 2d 15h | 5,247 | 91K |
EAGLE-I tracked about n/a of New Hampshire's electricity customers in 2023; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2023 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.