How reliable is NATIONAL GRID?

NATIONAL GRID did not report standardized SAIDI/SAIFI reliability metrics to the EIA. Outage history for the counties it serves is available on their individual pages.

How many customers does NATIONAL GRID serve?

NATIONAL GRID serves 12 counties across Massachusetts, per its EIA-861 service territory filing.

Where does NATIONAL GRID provide power?

NATIONAL GRID operates in Massachusetts. The full list of counties served is below, each linked to its live outage status.

NATIONAL GRID— Outages & Reliability

As of July 18, 2026 18:54 UTC, about 126 NATIONAL GRID customers are without power in 3 counties.

NATIONAL GRID is an electric utility serving 12 counties in Massachusetts. NATIONAL GRID did not report standardized reliability metrics to the EIA (common for smaller or short-form utilities), but its service territory and outage history are tracked below.

SCATTERED OUTAGES · ON ITS NETWORK

126

NATIONAL GRID customers out in 3 counties

Official reliability

US EIA

Not reported to EIA

OUTAGE TREND

NATIONAL GRID

126

AS OF LAST UPDATE · PEAK 765

Updated July 18, 2026

2 PM8 PM2 AM9 AM2 PM

Counties served by NATIONAL GRID (12)

Service territory reported to EIA-861 — each links to live outage status and history.

NATIONAL GRID: FAQ

How reliable is NATIONAL GRID?: NATIONAL GRID did not report standardized SAIDI/SAIFI reliability metrics to the EIA. Outage history for the counties it serves is available on their individual pages.
How many customers does NATIONAL GRID serve?: NATIONAL GRID serves 12 counties across Massachusetts, per its EIA-861 service territory filing.
Where does NATIONAL GRID provide power?: NATIONAL GRID operates in Massachusetts. The full list of counties served is below, each linked to its live outage status.

Reliability metrics (SAIDI/SAIFI) and service territory from the US EIA Form 861. SAIDI/SAIFI are IEEE-standard, including major event days. Primary state: Massachusetts.