Power Outages in Nantucket County, MA
Is there a power outage in Nantucket County, MA right now? No. As of October 20, 2026 03:30 UTC, no outages are reported by Nantucket Electric Co in Nantucket County, MA.
Nantucket County, MA is served by 2 tracked utilities. In 2025, the average customer here lost power for about 5.5 hours.
Cite this data
- URL
- https://massoutage.com/massachusetts/nantucket-county
- As of
- October 20, 2026 03:30 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in Nantucket County, MA", live data as of October 20, 2026 03:30 UTC. https://massoutage.com/massachusetts/nantucket-county
No active outages are reported by Nantucket Electric Co in Nantucket County.
Report an outage in Nantucket County, MA
Report it to your electric utility; MassOutage can't take reports. For a downed line, stay at least 35 feet away and call 911.
No outage contact on file for Massachusetts Electric Co and Nantucket Electric Co; check your electric bill or the utility's website.
0.0%of this county's ~6,451 customers are served by utilities with a county-level live feed.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Massachusetts Electric Co | Live · county | no county report | - | - | - | - | - | - |
| Nantucket Electric Co | Live · county | 0 | - | - | - | 0 | - |
Nantucket Electric Co reportsevery town in the county on each poll, so 0 out is a real all-clear. ETRs are the utility's own estimates.
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Nantucket 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.
By ZIP code (2)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 02554 | 46 | ≤11 | 33 | 0 |
| 02564 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Nantucket County or any town and utility in it.
No active NWS alerts for Nantucket County right now.
Nantucket County has been under 29 National Weather Service alerts recently, most recently a Coastal Flood Advisory on September 28, 2026.
- High Surf Advisory ×7
- High Wind Warning ×5
- Coastal Flood Warning ×4
- Flood Watch ×4
- Coastal Flood Advisory ×3
- Rip Current Statement ×3
Latest Nantucket County, MA outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 2h 35m
- OUTAGE BEGAN
Outage began: 118 customers out (17% of the county)
Hardest-hit cities in Nantucket County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Nantucket County went about 5.5 hours without power. Peak simultaneous outage on record reached 6,451 customers.
The US EIA reports Massachusetts utilities averaged 2.0 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 5.5 hrs.
Worst year here was 2015 (peak 6,451 customers out) · decade average 7.8 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 145 | 6,451 | 34.8 |
| 2016 | 146 | 2,873 | 4.6 |
| 2017 | 151 | 1,963 | 3.1 |
| 2018 | 131 | 6,451 | 6.6 |
| 2019 | 102 | 1,740 | 1.0 |
| 2020 | 150 | 2,798 | 2.2 |
| 2021 | 164 | 1,886 | 2.5 |
| 2022 | 208 | 5,764 | 20.0 |
| 2023 | 175 | 555 | 1.8 |
| 2024 | 184 | 1,607 | 4.1 |
| 2025 | 195 | 1,860 | 5.5 |
Cost of power in Nantucket County
ENERGY & AI DEMAND →Estimated residential electricity price for Nantucket 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.
- Massachusetts Electric Co33.7¢438,150 cust
- Nantucket Electric Co35.9¢2,215 cust
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. What that adds up to each month, by state and utility: average electric bill.
Relatively Moderate hurricanes exposure · 7.8 hrs/yr of outages over the last decade.
Power outages in Nantucket County: FAQ
- How often does Nantucket County, MA lose power?
- Based on EAGLE-I records, Nantucket County, MA logged 195 distinct outage events in 2025, averaging about 5.5 hours without power per customer over the year.
- What was the worst power outage in Nantucket County, MA?
- The largest tracked outage peaked at 6,451 customers without power, beginning January 27, 2015 and lasting about 11h 15m.
- Is there a power outage in Nantucket County, MA right now?
- No. As of October 20, 2026 03:30 UTC, no outages are reported by Nantucket Electric Co in Nantucket County, MA.
- Which utilities serve Nantucket County, MA?
- Tracked electric providers include Massachusetts Electric Co, Nantucket Electric Co.
Outages are tracked at the county level; these ZIP codes fall within Nantucket County.
02554, 02564, 02584
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported. Territory is filed by county, so these are the utilities with lines anywhere in Nantucket County, not the one at a given address. All electric companies in Massachusetts →
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Massachusetts Electric Co | 2.2 hrs | Live · county | - |
| Nantucket Electric Co | 1.7 hrs | Live · county | - |
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 Massachusetts customers). Machine-readable data: /api/v1/counties/25019 and /api/v1/counties/25019/history.