County annual report · FIPS 33013
2016 Merrimack County, NH Power Outage Report
In 2016, customers in Merrimack County, NH went without power for an average of 3.5 hours, a total of 407K customer-hours (New Hampshire average 3.2 hours). That ranks 4th worst of 10 New Hampshire counties and 878th of 2,391 nationally.
Compared with NH, the US and 2015
Coverage line is EAGLE-I's share of New Hampshire customers tracked each year.
Biggest outages in Merrimack County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 23, 2016 21:30 | July 25, 2016 18:00 | 1d 20h | 25,159 | 223K |
| 2 | July 9, 2016 21:00 | July 10, 2016 09:30 | 12h 30m | 5,185 | 5,473 |
| 3 | March 29, 2016 17:00 | March 29, 2016 22:45 | 5h 45m | 5,014 | 6,260 |
| 4 | October 27, 2016 12:15 | October 27, 2016 22:15 | 10h | 3,753 | 6,458 |
| 5 | July 10, 2016 11:45 | July 10, 2016 19:15 | 7h 30m | 3,546 | 10K |
| 6 | December 30, 2016 00:30 | December 30, 2016 11:00 | 10h 30m | 2,969 | 6,750 |
| 7 | November 16, 2016 22:45 | November 17, 2016 04:45 | 6h | 2,841 | 748 |
| 8 | July 26, 2016 16:15 | July 26, 2016 19:15 | 3h | 2,600 | 6,989 |
| 9 | September 4, 2016 21:30 | September 4, 2016 21:45 | 15m | 2,483 | 621 |
| 10 | March 17, 2016 12:15 | March 18, 2016 08:30 | 20h 15m | 2,481 | 7,394 |
Outage episodes by size in 2016: 140 reached 100+ customers, 30 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 Merrimack County reported on EIA Form 861 for 2016, 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 | 2016 | 3.3 hrs | 1.57 | 2.3 hrs | 1.39 |
| Unitil Energy Systems | 2016 | 2.7 hrs | 1.17 | 1.7 hrs | 0.98 |
| 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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 115,899 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. Merrimack County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Merrimack County, NH annual power outage report, 2016, 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/2016/new-hampshire/merrimack-county