How reliable is Unitil?

Unitil 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 Unitil serve?

Unitil serves 2 counties across Massachusetts, per its EIA-861 service territory filing.

Where does Unitil provide power?

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

Unitil— Outages & Reliability

As of September 3, 2026 03:22 UTC, no major outages are reported on Unitil's network.

Unitil is an electric utility serving 2 counties in Massachusetts. Unitil 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.

LIVE ON ITS NETWORK

No major outages currently reported on Unitil's network.

Official reliability

US EIA

Not reported to EIA

OUTAGE TREND

Unitil

AS OF LAST UPDATE · PEAK 1

Updated September 3, 2026

11 PM5 AM11 AM5 PM11 PM

Counties served by Unitil (2)

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

Unitil: FAQ

How reliable is Unitil?: Unitil 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 Unitil serve?: Unitil serves 2 counties across Massachusetts, per its EIA-861 service territory filing.
Where does Unitil provide power?: Unitil 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.