County annual report · FIPS 33005
2017 Cheshire County, NH Power Outage Report
In 2017, customers in Cheshire County, NH went without power for an average of 7.4 hours, a total of 268K customer-hours (New Hampshire average 14.3 hours). That ranks 10th worst of 10 New Hampshire counties and 719th 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 Cheshire 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 | March 2, 2017 12:00 | March 3, 2017 20:15 | 1d 8h | 5,022 | 28K |
| 2 | October 30, 2017 01:15 | November 4, 2017 15:45 | 5d 14h | 4,558 | 124K |
| 3 | May 19, 2017 01:00 | May 20, 2017 03:45 | 1d 2h | 2,561 | 12K |
| 4 | May 14, 2017 07:15 | May 15, 2017 01:00 | 17h 45m | 2,115 | 12K |
| 5 | March 9, 2017 11:00 | March 10, 2017 03:30 | 16h 30m | 1,965 | 7,088 |
| 6 | November 10, 2017 10:15 | November 11, 2017 02:15 | 16h | 1,769 | 853 |
| 7 | July 18, 2017 10:30 | July 18, 2017 13:00 | 2h 30m | 1,764 | 3,093 |
| 8 | September 3, 2017 17:45 | September 3, 2017 20:15 | 2h 30m | 1,668 | 2,333 |
| 9 | August 22, 2017 13:45 | August 22, 2017 16:30 | 2h 45m | 1,654 | 502 |
| 10 | September 5, 2017 20:45 | September 7, 2017 01:45 | 1d 5h | 1,464 | 10K |
Outage episodes by size in 2017: 71 reached 100+ customers, 17 reached 1,000+ customers, 0 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 Cheshire 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 | - | - | - | - | - |
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 ÷ 36,014 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. Cheshire County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cheshire 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/cheshire-county