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Power Outages in Merrimack County, NH

Unitil Energy Systems has not reported outages here, but it only publishesactive outages, so that isn't a confirmed all-clear. New Hampshire Elec Coop Inc and Public Service Co of NH publish only a system-wide total, not county figures. In 2025, the average customer here lost power for about 2.6 hours.

Merrimack County, NH is served by 3 tracked utilities.

Cite this data
URL
https://massoutage.com/new-hampshire/merrimack-county
As of
Not available
Publisher
MassOutage

MassOutage, "Power Outages in Merrimack County, NH". https://massoutage.com/new-hampshire/merrimack-county

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Merrimack County, NH
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This county Loading live outagesout
No outages reported (partial view)

Unitil Energy Systems only appearsin feeds while reporting outages, so no report isn't a confirmed all-clear.

New Hampshire Elec Coop Inc and Public Service Co of NH publish no county-level figures.

Live status by utility · Merrimack County

0.0%of this county's ~132,405 customers are served by utilities with a county-level live feed.

Blind spots

Only visible while reporting outages: Unitil Energy Systems. Zero here is not a confirmed all-clear.

System-wide total only, no county split: New Hampshire Elec Coop Inc, Public Service Co of NH.

UtilityFeedOutServed% outSmall outagesIncidentsUtility ETRAs of
New Hampshire Elec Coop IncLive · total onlynot by county------
Public Service Co of NHLive · total onlynot by county------
Unitil Energy SystemsOutages onlynone reported------

Electricity-dependent residents

HHS emPOWER · data October 7, 2026

Medicare beneficiaries in Merrimack Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.

Power-dependent
1,246
Oxygen service
310
Dialysis (facility)
176
Home health / hospice
370
By ZIP code (26)
ZIPPower-dependentVentilatorsO2 concentratorsHome dialysis
03301247≤111730
03303131≤11890
03275108≤1173≤11
03235104≤1176≤11
0310687≤1165≤11
0327686≤1167≤11
0330445≤1132≤11
0323444≤1132≤11
0330740029≤11
0322937≤11270
0326336≤11290
0325734≤11280
03242300210
0304620≤11≤11≤11
0327819≤11≤11≤11
0325519≤11120
0321618≤11140
0326816≤11≤110
0322416≤11≤110
0325815≤11≤110
03230150130
0324314≤11≤110
03221120≤110
03287≤110≤110
03273≤11000
03260≤110≤110

Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.

🔔 Alerts for Merrimack County, NH

Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Merrimack County or any town and utility in it.

Get alerts for Merrimack CountySend updates to your dashboardRSS feed
◢ ACTIVE WEATHER ALERTS · NWS

No active NWS alerts for Merrimack County right now.

Latest Merrimack County, NH outage updates

A running log of how this outage has changed, updated automatically as utilities report in.

  1. RESOLVED

    Power restored after 2h

  2. GREW

    Outage grew to 2,353 customers out (2.0% of the county)

  3. OUTAGE BEGAN

    Outage began: 1,542 customers out (1.3% of the county)

  4. RESOLVED

    Power restored after 44m

  5. OUTAGE BEGAN

    Outage began: 548 customers out (0.5% of the county)

  6. RESOLVED

    Power restored after 3h 36m

  7. IMPROVING

    Improving: down to 392 customers out

  8. OUTAGE BEGAN

    Outage began: 769 customers out (0.7% of the county)

Outage trend · Merrimack County, NH
0customers out · peak 5
Data as of Oct 15, 2026 00:30 UTC
Merrimack County, NH: customers without power, last 24 hoursPeak 5 customers out; latest 0 as of Oct 15, 2026 00:30 UTC. Each point is the highest reading in its interval.0246Oct 146 AM12 PM6 PM
Use the arrow keys to read values.
Times in EDT. Shaded stretches had no reading.

Hardest-hit cities in Merrimack County

Where this event is concentrated across the county's towns and townships.

  • Concordno outage reported

Historical reliability

In 2025, the average customer in Merrimack County went about 2.6 hours without power. Peak simultaneous outage on record reached 37,350 customers.

Official state benchmark (EIA 2025)Source: US EIA

The US EIA reports New Hampshire utilities averaged 2.5 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 2.6 hrs.

A decade of outages (2015–2025)
avg hrs without power / customer
Merrimack County average outage hours per customer by year2015–2025: 2015 2.3h, 2016 3.5h, 2017 11.2h, 2018 3.4h, 2019 2.8h, 2020 5.2h, 2021 1.9h, 2022 6.6h, 2023 5.3h, 2024 11.8h, 2025 2.6h. Highlighted: 2024.0510152.3h20153.5h201611.2h20173.4h20182.8h20195.2h20201.9h20216.6h20225.3h202311.8h20242.6h2025
Use the arrow keys to read values.

Worst year here was 2024 (peak 30,245 customers out) · decade average 5.2 hrs without power per customer/yr.

YearOutage eventsPeak customers outAvg hrs/customer
201545527,8002.3
201673925,1593.5
201780237,35011.2
20187409,9083.4
201964812,2542.8
202088110,5585.2
202174312,5331.9
202286528,0156.6
202388712,5835.3
202489830,24511.8
20259008,4802.6

Cost of power in Merrimack County

ENERGY & AI DEMAND →

Estimated residential electricity price for Merrimack County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.

22.8¢/kWh
estimated residential average
▲ 22% since 2015
vs New Hampshire avg 26.6¢
vs US avg 20.0¢
BY UTILITY · RESIDENTIAL ¢/kWh

Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.

Worst recorded outages
STARTEDPEAK OUTDURATION
October 29, 201737,3506d 11h
March 23, 202430,2453d 2h
December 23, 202228,0154d 16h
December 5, 201527,8004h 15m
July 23, 201625,1591d 20h
See the biggest power outages in US history →
Natural hazards & outage risk
ELEVATED

Relatively High ice storms exposure · 5.2 hrs/yr of outages over the last decade.

Ice stormRelatively High
HurricaneRelatively Moderate
Strong windRelatively Moderate
FloodingRelatively Moderate
All hazard rankings →

Power outages in Merrimack County: FAQ

How often does Merrimack County, NH lose power?
Based on EAGLE-I records, Merrimack County, NH logged 900 distinct outage events in 2025, averaging about 2.6 hours without power per customer over the year.
What was the worst power outage in Merrimack County, NH?
The largest tracked outage peaked at 37,350 customers without power, beginning October 29, 2017 and lasting about 6d 11h.
Is there a power outage in Merrimack County, NH right now?
No major outage is currently reported for Merrimack County, NH. Live coverage depends on whether local utilities report to ODIN.
Which utilities serve Merrimack County, NH?
Tracked electric providers include New Hampshire Elec Coop Inc, Public Service Co of NH, Unitil Energy Systems.
Nearby counties
Belknap CountyGrafton CountyHillsborough CountyRockingham County
Cities & towns in Merrimack County

Concord. Outage counts for these communities are reported at the Merrimack County level shown above.

ZIP codes in Merrimack County

Outages are tracked at the county level; these ZIP codes fall within Merrimack County.

03046, 03106, 03216, 03221, 03224, 03229, 03230, 03231, 03233, 03234, 03235, 03242, 03243, 03255, 03257, 03258, 03260, 03263, 03268, 03273, 03275, 03276, 03278, 03287, 03301, 03303, 03304, 03307

Electric providers serving this county

From EIA-861 service territory, with official reliability where reported.

ProviderOfficial SAIDI (EIA)LiveReport outage
Public Service Co of NH2.7 hrsLive · total only-
Unitil Energy Systems1.6 hrsOutages only-
New Hampshire Elec Coop Inc-Live · total only-

Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of New Hampshire customers). Machine-readable data: /api/v1/counties/33013 and /api/v1/counties/33013/history.