2019 New Hampshire Power Outage Report
In 2019, the average New Hampshire customer went without power for about 3.3 hours, the 24th worst of 51 states (US average 4.6 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
3.3
vs prior year
▼ 42%
vs 2018
Customer-hours out
2.5M
Peak customers out
58,697
across the state at once
EAGLE-I coverage
99%
of NH customers
Counties reporting
10
New Hampshire year over year
Month by month, 2019
Customer-hours without power across New Hampshire; October was the worst.
All 10 New Hampshire counties, 2019
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 | Carroll County | 9.9 | 258K | 26,009 | 5,527 | 682 |
| 2 | Sullivan County | 8.8 | 176K | 20,079 | 4,560 | 360 |
| 3 | Belknap County | 6.4 | 206K | 32,434 | 6,569 | 628 |
| 4 | Cheshire County | 6.3 | 229K | 36,014 | 7,038 | 358 |
| 5 | Grafton County | 5.8 | 290K | 49,895 | 8,931 | 690 |
| 6 | Coos County | 5.8 | 139K | 24,038 | 4,665 | 295 |
| 7 | Merrimack County | 2.8 | 328K | 115,899 | 12,254 | 648 |
| 8 | Rockingham County | 2.8 | 432K | 154,048 | 22,977 | 737 |
| 9 | Strafford County | 1.6 | 147K | 89,738 | 7,820 | 484 |
| 10 | Hillsborough County | 1.4 | 277K | 196,402 | 7,982 | 511 |
Biggest New Hampshire outages of 2019
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Rockingham County, NH | October 17, 2019 03:45 | October 20, 2019 01:00 | 2d 21h | 22,977 | 260K |
| 2 | Merrimack County, NH | October 31, 2019 20:15 | November 3, 2019 23:15 | 3d 3h | 12,254 | 116K |
| 3 | Merrimack County, NH | October 17, 2019 01:45 | October 19, 2019 23:30 | 2d 21h | 12,030 | 96K |
| 4 | Grafton County, NH | October 17, 2019 04:30 | October 20, 2019 00:45 | 2d 20h | 8,931 | 73K |
| 5 | Hillsborough County, NH | November 23, 2019 19:00 | November 24, 2019 02:15 | 7h 15m | 7,982 | 3,512 |
| 6 | Strafford County, NH | October 17, 2019 04:00 | October 19, 2019 05:15 | 2d 1h | 7,820 | 76K |
| 7 | Cheshire County, NH | October 17, 2019 01:30 | October 19, 2019 23:30 | 2d 22h | 7,038 | 137K |
| 8 | Grafton County, NH | January 9, 2019 10:30 | January 11, 2019 05:45 | 1d 19h | 6,618 | 32K |
| 9 | Belknap County, NH | October 17, 2019 02:30 | October 20, 2019 14:30 | 3d 12h | 6,569 | 53K |
| 10 | Hillsborough County, NH | October 31, 2019 13:45 | November 3, 2019 11:30 | 2d 21h | 6,161 | 66K |
| 11 | Carroll County, NH | October 31, 2019 22:30 | November 3, 2019 23:45 | 3d 1h | 5,527 | 85K |
| 12 | Belknap County, NH | January 9, 2019 11:00 | January 12, 2019 10:45 | 2d 23h | 5,415 | 29K |
| 13 | Hillsborough County, NH | October 17, 2019 00:30 | October 19, 2019 21:15 | 2d 20h | 5,367 | 62K |
| 14 | Grafton County, NH | March 4, 2019 16:15 | March 4, 2019 18:00 | 1h 45m | 5,309 | 7,784 |
| 15 | Rockingham County, NH | February 25, 2019 09:15 | February 27, 2019 01:30 | 1d 16h | 5,048 | 23K |
| 16 | Carroll County, NH | February 25, 2019 19:45 | February 28, 2019 18:45 | 2d 23h | 5,023 | 17K |
| 17 | Belknap County, NH | November 1, 2019 05:15 | November 3, 2019 23:45 | 2d 18h | 4,946 | 30K |
| 18 | Hillsborough County, NH | February 25, 2019 08:00 | February 27, 2019 06:30 | 1d 22h | 4,928 | 40K |
| 19 | Coos County, NH | November 1, 2019 01:00 | November 4, 2019 00:15 | 2d 23h | 4,665 | 99K |
| 20 | Sullivan County, NH | October 31, 2019 22:00 | November 3, 2019 23:00 | 3d 1h | 4,560 | 85K |
| 21 | Sullivan County, NH | January 9, 2019 10:30 | January 11, 2019 05:45 | 1d 19h | 4,534 | 24K |
| 22 | Carroll County, NH | October 17, 2019 03:00 | October 20, 2019 14:30 | 3d 11h | 4,529 | 37K |
| 23 | Rockingham County, NH | October 31, 2019 17:45 | November 2, 2019 22:45 | 2d 5h | 4,521 | 26K |
| 24 | Carroll County, NH | January 9, 2019 11:00 | January 12, 2019 10:45 | 2d 23h | 4,402 | 23K |
| 25 | Grafton County, NH | October 31, 2019 17:30 | November 3, 2019 23:15 | 3d 5h | 4,387 | 75K |
EAGLE-I tracked about 99% of New Hampshire's electricity customers in 2019; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2019 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.