Get a no-cost Home Energy Assessment

As we head into cooler months, and with energy costs rising, now is a great time to check your home’s energy efficiency. The assessment is free, and you may be eligible for incentives through Mass Save®.

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A friendly reminder about the prompt-payment discount

We continue to receive questions from customers who expected to receive the monthly prompt-payment discount. We hope the following information helps clarify how the discount works.
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Please update your contact information today!

Did you get a postcard from us? Update your contact info here.

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Merrimac Light vs National Grid

We’re dedicated to informing our customers of the benefits of public power versus investor-owned utilities like National Grid, and one of the major benefits is the difference in cost.

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Rate Comparisons

See how our rates compare to other towns and private companies.

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Free LED Light Bulbs!

We understand that our customers want to save as much energy as possible to reduce their monthly electric bill. To assist in that effort, MMLD will be handing out free LED light bulbs!

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Electrify Merrimac 2026

Merrimac has spoken! Thank you for helping us decide which project to fund this year.

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Public Power Week

Thank you for joining us for Public Power Week!

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MMLD Awarded the 2026 Gold-level Public Power Customer Satisfaction Award

The American Public Power Association has awarded Merrimac Light the 2026 Gold-level Public Power Customer Satisfaction Award! We want to thank everyone who took the time to complete the customer satisfaction survey. We have the best customers, and it's our pleasure...
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Massachusetts apprentices train for demanding, essential careers

As artificial intelligence reshapes workplaces, two demanding Massachusetts trades still rely on human judgment, technical skill, and physical endurance.

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Watts New: September Issue

Our very first edition of Watts New! This issue contains billing system changes, resources, safety information, team spotlight, rate comparison and a list of upcoming events!

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