Power outages in Suffolk County, MA

Live outage counts for Boston, Revere and Chelsea and the rest of Suffolk County, updated every 10 minutes from National Grid.

Right now

No live outage data for Suffolk County yet.

NSTAR Electric Companyno live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
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Massachusetts Bay Trans Authorityno live feed
iThis utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.
Serves this county, per federal utility records
iFrom EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.
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Outage map

Outage locations not published
County outlineNational Grid publishes totals only, not outage locations.
iSome utilities publish only how many customers are out, not where. Their outages are in the counts but can't be drawn on the map.

Outage history in Suffolk County

2014–2025 record

Suffolk County averaged 2.7 significant outages a year in 2023–2025, fewer than most Massachusetts counties.

In the 12 months to December 2025, there were 4. Half were over within 45 minutes; the longest lasted 1.5 hours, starting July 30, 2025.

The largest on record began May 14, 2025, with 27,817 customers out at once.

2.7significant outages a year (2023–2025)
iAt least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.
1 hourtypical (median) length
iHalf of significant outages here ended sooner than this, and half lasted longer.
2 hourslongest on record (July 2015)
27,817most customers out at once
Largest events (start)Peak outLasted
iHow long this area stayed at or above the significant-outage line, not how long any one home was without power.
Customer-hours
iCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours.
May 14, 202527,8171 hour12,085
July 24, 202222,2881 hour17,567
July 30, 202518,0101.5 hours17,126
November 3, 202315,0821.5 hours18,160
December 23, 202313,0561 hour12,726

Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).

iFrom EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.

If your power is out

Report it to your utility

Food safety

  • 0–4 hKeep the fridge closed. It keeps food cold for about 4 hours.
  • 4 h+Throw out meat, dairy and leftovers that have been above 40°F for more than 2 hours.
  • 24 hA half-full freezer holds about 24 hours if kept closed.
  • 48 hA full freezer holds about 48 hours.

Generators, heat and cold

  • Run generators outside only, at least 20 feet from windows and doors. Never in a garage.
  • Use a battery-powered carbon monoxide alarm.
  • Never heat your home with a gas stove or oven.

Cities in Suffolk County

Nearby counties

Utilities