County annual report · FIPS 33009
2017 Grafton County, NH Power Outage Report
In 2017, customers in Grafton County, NH went without power for an average of 12.2 hours, a total of 611K customer-hours (New Hampshire average 14.3 hours). That ranks 5th worst of 10 New Hampshire counties and 443rd of 2,786 nationally.
Compared with NH, the US and 2016
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Grafton County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 30, 2017 01:30 | November 5, 2017 00:15 | 5d 22h | 11,415 | 486K |
| 2 | January 10, 2017 19:45 | January 11, 2017 21:15 | 1d 1h | 4,951 | 16K |
| 3 | March 18, 2017 18:45 | March 18, 2017 20:15 | 1h 30m | 4,585 | 4,312 |
| 4 | June 19, 2017 23:30 | June 20, 2017 08:15 | 8h 45m | 3,146 | 4,747 |
| 5 | August 22, 2017 23:45 | August 23, 2017 10:30 | 10h 45m | 2,112 | 9,742 |
| 6 | February 26, 2017 01:15 | February 27, 2017 02:15 | 1d 1h | 1,751 | 11K |
| 7 | October 24, 2017 16:30 | October 25, 2017 17:00 | 1d | 1,518 | 4,040 |
| 8 | October 29, 2017 11:45 | October 29, 2017 16:45 | 5h | 1,317 | 1,425 |
| 9 | December 23, 2017 17:00 | December 24, 2017 20:45 | 1d 3h | 1,267 | 7,677 |
| 10 | April 1, 2017 05:45 | April 1, 2017 18:15 | 12h 30m | 1,172 | 5,378 |
Outage episodes by size in 2017: 62 reached 100+ customers, 10 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 Grafton County reported on EIA Form 861 for 2017, 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 | 2017 | 16.1 hrs | 1.92 | 2.0 hrs | 1.11 |
| Liberty Utilities (Granite State Electri | 2017 | 6.8 hrs | 1.67 | 2.6 hrs | 1.29 |
| New Hampshire Elec Coop Inc | - | - | - | - | - |
| Precinct of Woodsville | - | - | - | - | - |
| Town of Ashland | - | - | - | - | - |
| Town of Littleton - (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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 49,895 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. Grafton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grafton County, NH annual power outage report, 2017, 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/2017/new-hampshire/grafton-county