Outage Map Instructions

The lines on the map represent Unitil’s overhead and underground distribution system from the substation out to the nearest ‘load serving’ transformer in your neighborhood. You may recognize these transformers as the metal cans that sit atop utility poles, though they may also be pad mounted in places where lines are underground. Secondary lines and services from each of these transformers down smaller streets and into homes are not included on the map. Green means that the lines are energized and red means that there is a power outage. In some rare cases, an area may show as blue on the map because of advance knowledge of a future outage. In these cases, check Unitil.com for more information as there may be unique system conditions.

We believe providing customers with real-time information when an outage occurs helps create a greater understanding of how the electric system works, and what we are doing to restore power. You see what we see. The map also gives us additional communication tools we can utilize in the event of a regional energy issue, such as controlled outages directed by ISO-New England.

The map shows all Unitil lines up to customer load serving transformers. However, secondary lines, or lines that feed from these transformers out to homes and some smaller streets in more rural areas, are not included. It is possible for a small, local outage on these secondaries to not impact green lines. However, a bubble would still appear on the map to represent this outage.

During some outages, we may be able to perform a partial restoration and restore a portion of the customers impacted. In this case, some of the impacted area may turn green again after it has been restored, separating the bubble that represents the outage from the red lines that represent the customer still out. In this case, crews are continuing to work the outage to restore the remaining customers.