Our Non-Profit Mission: Empower consumers and communities to speed a just transition to a zero-carbon world through education, programming, and advocacy.

What we do

Educate energy consumers

Learn about energy

Enable green energy choices

Programs for consumers

Advocate for climate

Support our climate advocacy

Programs & Services

Drive Green

Compare EVs, navigate incentives, and connect with expert insights.

Drive Green

Heating Oil Service

Get special pricing on heating oil with a trustworthy dealer, plus help to save energy.

Heating Oil Service

Green Powered

You switch to green electricity. We all get a cleaner grid.

Green Powered

Heat Pumps

Start your transition to energy-efficient heating and cooling.

Heat Pumps

Shave the Peak

Save energy when it matters most.

Shave the Peak

Your Solar Options

Compare quotes online from vetted solar installers

Your Solar Options

Energy Policy

Consumer action on energy & climate policy

Energy policy

Our latest podcast episode

The latest from our blog

Shave The Peak: Summer 2026 Wrap-Up

September 30, 2026

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Rising Fuel Prices Make Mass Save More Important Than Ever

September 21, 2026

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What is Massachusetts Doing About Data Centers?

September 7, 2026

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Events & webinars to empower you

Everything You Need to Know About Charging Adaptors

October 9, 2026

Nowadays, there are tons of adaptors available both for Level 2 and DC Fast Charging for…

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Harvest Your Energy Festival

October 17, 2026

Come see us at the City of Medford's annual Harvest Your Energy Festival at Riverbend Park. This…

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Electric Trunk-or-Treat

October 24, 2026

Join us for a family-friendly event where you can explore electric cars, e-bikes, and clean…

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