Merrimack County, NH Power Outages
Utilities serving Merrimack County, New Hampshire don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
Merrimack County on the New Hampshire outage map
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Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Merrimack County power outage history
Every significant outage recorded in Merrimack County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 204 significant power outages in Merrimack County, meaning events that left at least 1% of customers in the dark. The largest (Nov 26–30, 2014) came when a winter storm left 61,747 customers (53.3% of the county) without power.
From 2018 to 2025, the average customer here lost about 4 hr 58 min of power per year, less than the New Hampshire average of 6 hr 58 min. That ranks 9th of 10 New Hampshire counties for outage time, where 1st has the most.
March is the riskiest month: it accounted for 26% of all customer outage time from 2018 to 2025. On 24 days in that period, at least 5% of customers were out at the same time. Outage time in Merrimack County has risen recently: about 6 hr 36 min per customer per year in 2022–2025, versus 3 hr 21 min in 2018–2021.
The most recent significant outage on record (Dec 29–30, 2025) affected 4,904 customers (4.2%) amid a winter storm.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Nov 26–30, 2014 | 61,747(53.3%) | 5 | Winter storm |
| 2 | Oct 30 – Nov 2, 2017 | 37,350(32.2%) | 4 | Flooding |
| 3 | Mar 23–26, 2024 | 30,245(26.1%) | 4 | Winter storm |
| 4 | Dec 23–25, 2022 | 28,015(24.2%) | 3 | Flooding |
| 5 | Dec 5, 2015 | 27,800(24%) | 1 | No major storm reported |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Merrimack County?
Electric companies with service territory in Merrimack County (EIA-861, 2025)
| Utility | Type | Customers (NH) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Eversource (New Hampshire) | Investor Owned | 555,603 | Not reporting | |
| New Hampshire Elec Coop Inc | Cooperative | 85,745 | Not reporting | |
| Unitil Energy Systems | Investor Owned | 82,001 | Not reporting |
Customer counts are each utility's statewide total in New Hampshire. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Merrimack County outage headlines in the past week.
Cities in Merrimack County
Concord
Nearby counties
Merrimack County power outage FAQ
Is the power out in Merrimack County right now?
No outages are currently reported for Merrimack County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves Merrimack County?
According to EIA-861 service territory data, Public Service Co of NH, New Hampshire Elec Coop Inc, Unitil Energy Systems provide electric service in Merrimack County, New Hampshire.
What was the worst power outage in Merrimack County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Nov 26–30, 2014. It peaked at 61,747 customers without power (53.3% of the county). NOAA storm reports for that period point to winter storm.
How often does the power go out in Merrimack County?
EAGLE-I has recorded 204 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 4 hr 58 min of power per year, and on 24 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Merrimack County, NH Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/new-hampshire/merrimack-county