• Gas Leaks
  • Energy Shift
  • Energy Efficiency

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

Latest Updates

Fixing Super-Emitting Leaks

by Dominic Nicholas HEET continues to act as a watchdog, verifying utilities identification and repair of their super-emitting gas leaks—these…

Continue reading »

National Grid Proposes Networked Geothermal

By Sarah Griffith After the Department of Public Utilities rejected their first attempt, National Grid is back with a new…

Continue reading »

Change Ahead for Gas Utilities

By Carrie Klein Governor Baker signs Next Gen Energy bill into law in winter 2021. Gas utilities have faced both…

Continue reading »

HEET Community Charrettes

by Sarah Griffith HEET has long believed in the wisdom of the crowd, that is, the ability of a group…

Continue reading »

When Heating with Gas Costs More

By Sarah Griffith and Carrie Klein HEET commissioned the Applied Economics Clinic to project heating costs in Massachusetts. The results predict…

Continue reading »

HEET Data in Peer-Reviewed Scientific Journal

By HEET Staff Repairing gas leaks is a strategy for near-term climate action in Massachusetts. Natural gas leaks account for…

Continue reading »

Read more posts...


“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…