• Networked Geothermal
    Networked Geothermal

    Renewable, non-emitting, and equitable.

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  • HEET in the News
    HEET in the News

    Recognition and Press

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  • Gas Leaks
    Gas Leaks

    Finding solutions to reduce methane emissions.

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  • Energy Efficiency
    Energy Efficiency

    Helping nonprofits lower emissions and energy bills.

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

Latest Updates

MA Makes Strides Towards Clean Thermal Energy Policy

Exciting legislation and regulations are moving forward in Massachusetts that have the potential to significantly help the state meet its emission reduction mandates, reduce building carbon footprints, and create thermal utilities that can deliver clean, affordable heating and cooling year…

Team Hello & Goodbye

HEET threw a festive farewell party earlier this month for Carrie Klein, who served as our director of communications since 2021. Carrie has worn many hats at HEET, from managing our social media and PR, to keeping our followers informed…

Take the First Step Towards Bringing Networked Geothermal to Your Community

Thanks to funding from the Massachusetts Clean Energy Center provided by the legislature through Federal ARPA funds, HEET will be releasing a Request for Applications for communities in Massachusetts committed to deploying networked geothermal. Kickstart Mass will provide grants of…

Seeking Design Engineering for Networked Geothermal Expansion in Framingham

In April 2023, a community coalition led by HEET and including the City of Framingham and Eversource Gas was awarded a Community Geothermal grant by the DOE’s Geothermal Technologies Office. This funding will be used to design an expansion of…

Snapshots of the Networked Geothermal Progress in MA  

Two gas utility-run networked geothermal systems are being installed in MA, piloting the path forward for gas utilities’ transition to delivering clean, renewable thermal energy! Framingham, MA  After a groundbreaking event in June, Eversource Gas began the construction phase of…

New Maps: Gas Leaks & Plans for New Gas Pipes in MA

HEET’s annually updated maps are here! Check out the location of repaired and unrepaired gas leaks throughout MA, plus the locations of the state’s estimated $40B plan to replace old gas pipes with new ones. Enter your address on either…

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Videos

“We’re Aligned 100% With HEET”

Watch Bill Akley, president of Eversource Energy’s gas business unit, announce the GeoMicroDistrict pilots.

Gushing Natural Gas Leaks

Just 7% of natural gas leaks emit fully half of all the methane emissions from Massachusetts’ aging gas distribution system. 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 gas 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…