Emergency response plans

Find out about the emergency response plans (ERPs) of electric and gas companies and instructions to view the latest filings.

Table of Contents


Each electric company has a plan to restore service in case of an emergency event. An emergency event beyond an electric company’s control, such as a storm, that causes widespread outages. The emergency response plans are submitted each year to the DPU for review and approval.

The electric companies have procedures to handle issues arising during emergency events that could have a big impact on the public. 

“Wires-down response” is implemented in the event of a down power line.  The goal of these plans are to isolate and remove threats to public safety from down wires.  

The electric companies also have a special protocol for handling service restoration for “critical facilities” such as hospitals and municipal emergency response organizations like police and fire stations. If there is service interruption, the electric companies prioritize restoration to critical facilities. Prioritizing critical facilities will expedite restoration of service to the region and is also done for public safety reasons.

Look up an ERP filing

To see all document filings, please visit the file room and type the case’s docket number using the following format: XX-ERP-XX, replacing the first two digits in a docket number with the relevant year’s last two digits.


Docket Company Name
XX-ERP-08 Fitchburg Gas and Electric Light Company (Electric Division) d/b/a Unitil
XX-ERP-09 Massachusetts Electric Company and Nantucket Electric Company d/b/a National Grid
XX-ERP-10 NSTAR Electric Company and Western Massachusetts Electric Company d/b/a Eversource Energy


Docket Company Name
XX-ERP-01 Bay State Gas Company d/b/a Columbia Gas of Massachusetts
XX-ERP-02 The Berkshire Gas Company
XX-ERP-03 Blackstone Gas Company
XX-ERP-04 Fitchburg Gas and Electric Light Company (Gas Division) d/b/a Unitil
XX-ERP-05 Boston Gas Company and Colonial Gas Company d/b/a National Grid
XX-ERP-06 Liberty Utilities
XX-ERP-07 NSTAR Gas Company d/b/a Eversource Energy


Regulations, statutes, and guidelines

Contact   for Emergency response plans

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