Merrimac Light vs National Grid

Merrimac Municipal Light Department

3 hours ago

A BIG Thank You to the Merrimac Highway Department! 👏⚡

Merrimac Light would like to extend a huge thank you to the Merrimac Highway Department for the phenomenal job they did clearing the area below and around the power lines at the well field.

Their hard work helps improve access, safety, and reliability for our electric system, and we truly appreciate their time and effort in getting the job done!

We’re grateful to have such a great team working together for the Merrimac community. Thank you! 🇺🇸💪 ... See MoreSee Less

Merrimac Municipal Light Department

19 hours ago

As previously stated, Merrimac Light Department would provide an update once additional information became available regarding the town-wide power outage that occurred on August 25.

Following discussions with National Grid and review by our engineering consultant, the outage was traced to two fuses associated with a recently installed National Grid metering installation. The fuses were not properly sized for the electrical load they were required to carry under certain system conditions. When Merrimac's backup power supply was called upon during the event, the two fuses operated, resulting in the outage and some customers experiencing “half power” or “single phasing”.

Since identifying the cause, Merrimac Light Department has identified measures that will be implemented to prevent a similar condition from affecting customers in the future. We are also continuing to work with National Grid to review the installation and implement any additional corrective actions that may be appropriate.

We understand that outages of this nature are disruptive and frustrating. We appreciate the patience and understanding of our customers while we worked to determine the cause. Merrimac Light Department remains committed to transparency, reliability, and keeping our community informed.

Thank you for your continued support.

Merrimac Light Department ... See MoreSee Less

Merrimac Municipal Light Department

4 days ago

Have you heard? You can get your 2026 Santa Parade ornaments here at MMLD! $20 each and they are the perfect gift. We are open until 4pm. ... See MoreSee Less

Merrimac Municipal Light Department

2 weeks ago

Power outage update: we have requested a formal explanation from National Grid but they were not able to supply full power to our substation earlier. Since they were only able to provide half power, power was shut down until they were able to provide full power again. Once we have a formal explanation, I will share. We apologize for any inconvenience and thank you for your patience and support. - MMLD ... See MoreSee Less

Merrimac Municipal Light Department

3 weeks ago

MMLD is conducting ongoing work to collect aerial thermographic imagery of our equipment. Over the next few weeks you may see a drone and operator in your area between 7 AM and 5 PM. We currently have two employees out in the plains area, one changing out meters and the other doing the thermographic imaging. Both are wearing bright orange Merrimac Light Shirts with our logo on the front and back. ... See MoreSee Less

Merrimac Municipal Light Department

3 weeks ago

If you dropped your payment in our drop box over the weekend and you drive a black vehicle please check your rear view mirror. This was found on the ground under our drop box. It is here at the office if you want to put it back on your car. ... See MoreSee Less