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

Eversource Approved to Build GeoMicroDistrict

$4 Million Approved for Merrimack Valley GMD

New Project: EJ-Air

State Decarbonization Plan

More Conversations with Our Community

Looks Like Boreholes in Our Future
Videos
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“We’re Aligned 100% With HEET”Watch Bill Akley announce the GeoMicroDistrict pilots. |
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Gushing Natural Gas LeaksJust 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. |
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Large Volume Leak StudyHEET worked with National Grid, Eversource and Columbia Gas to scientifically prove how to identify the largest gas leaks so they can be fixed. |
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Common Goals, Uncommon PartnersAt 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. |
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Maura Healey Thanks HEETMass. Attorney General Maura Healey thanks HEET for its work to find a way to reduce methane emissions both in this state and nationally. |