• Gas Leaks
  • Energy Shift
  • Energy Efficiency

Mission: To cut carbon emissions NOW by driving systems change.

Latest Updates

Could Your Street be the First GeoMicroDistrict?

Eversource is selecting a street segment now for its GeoMicroDistrict pilot. And you could be the person who identifies the…

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HEET Community Charrettes

Over 70 stakeholders gathered at HEET’s first two virtual Community Charrettes of the year. Attendees included utility executives, regulators, labor…

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A Calculator for Your Town’s Gas Leak Emissions

You can now view estimates of your town’s annual methane emissions from gas leaks on our gas leak maps page.…

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Our Table Holiday Deliveries

Our Table, a program distributing groceries to families in Lawrence, delivered food, games, and books to over 70 families this holiday…

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Eversource Approved to Build GeoMicroDistrict

Eversource will be the first utility to pilot a GeoMicroDistrict! On October 30, 2020 the Massachusetts Department of Public Utilities…

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$4 Million Approved for Merrimack Valley GMD

As part of Eversource’s purchase of Columbia Gas, a settlement fund was created to help the people affected by the…

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Videos

“We’re Aligned 100% With HEET”

Watch Bill Akley announce the GeoMicroDistrict pilots.

Gushing Natural Gas Leaks

Just 7% of natural gas leaks emit fully half of all the methane emissions. Methane is a potent greenhouse gas. Fixing these leaks is critical to reducing our emissions.

Large Volume Leak Study

HEET worked with National Grid, Eversource and Columbia Gas to scientifically prove how to identify the largest gas leaks so they can be fixed.

Common Goals, Uncommon Partners

At an MIT summit, HEET and three gas companies announced a plan to fix the largest leaks. The plan includes independent verification, data transparency and annual reassessment.

Maura Healey Thanks HEET

Mass. Attorney General Maura Healey thanks HEET for its work to find a way to reduce methane emissions both in this state and nationally.

Check out our YouTube channel…