County annual report · FIPS 33005
2015 Cheshire County, NH Power Outage Report
In 2015, customers in Cheshire County, NH went without power for an average of 2.4 hours, a total of 85K customer-hours (New Hampshire average 2.3 hours). That ranks 4th worst of 10 New Hampshire counties and 1107th of 2,484 nationally.
Compared with NH, the US
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Cheshire County, 2015
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 8, 2015 16:00 | December 8, 2015 16:45 | 45m | 5,208 | 2,372 |
| 2 | June 28, 2015 08:45 | June 29, 2015 06:45 | 22h | 3,238 | 23K |
| 3 | November 13, 2015 20:15 | November 14, 2015 00:00 | 3h 45m | 3,181 | 1,991 |
| 4 | September 9, 2015 18:00 | September 9, 2015 19:45 | 1h 45m | 2,788 | 1,396 |
| 5 | January 5, 2015 11:15 | January 5, 2015 18:45 | 7h 30m | 2,632 | 4,026 |
| 6 | June 18, 2015 15:15 | June 18, 2015 16:45 | 1h 30m | 1,772 | 1,025 |
| 7 | August 22, 2015 18:30 | August 22, 2015 19:30 | 1h | 1,702 | 1,087 |
| 8 | November 15, 2015 01:45 | November 15, 2015 02:15 | 30m | 1,637 | 410 |
| 9 | August 17, 2015 14:00 | August 17, 2015 21:45 | 7h 45m | 1,534 | 1,185 |
| 10 | October 29, 2015 16:00 | October 30, 2015 05:00 | 13h | 1,433 | 3,435 |
Outage episodes by size in 2015: 84 reached 100+ customers, 13 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 2015, 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 | 2015 | 1.9 hrs | 1.09 | 1.8 hrs | 1.05 |
| Liberty Utilities (Granite State Electri | 2015 | 2.2 hrs | 0.80 | 75 min | 0.72 |
| 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 2015; 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, 2015, 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/2015/new-hampshire/cheshire-county