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  • Amanda Kingsley | Case Studies | Mass Save

    Amanda Kingsley and her family have lived in their late‑1800s home in Shelburne Falls, Massachusetts, since 2002. Like many older New England houses, the home relied on a patchwork of heating sources over the years, including an aging oil furnace and a pellet stove, which led to uneven temperatures, system noise and ongoing maintenance challenges.

  • Energy Facts

    Energy Facts

  • 0% Interest Financing | Residential | Mass Save

    Check your eligibility for a 0% interest loan on a new heating system, water heater, central air conditioner, heat pump, or insulation.

  • Mass Save Upgrade Heating and Cooling Equipment Guide

    High-efficiency equipment can make your home more comfortable, efficient, and budget-friendly. The Sponsors of Mass Save® provide resources and rebates that help you upgrade.

  • Beth Israel Deaconess Medical Center – Boston | Case Studies | Mass Save

    Demand-controlled laboratory ventilation at BIDMC reduced wasted heating and cooling while maintaining safety through real-time air monitoring and variable airflow control.

  • Temple-Sinai – Sharon | Case Studies | Mass Save

    Through a Decarbonization Consultation with Eversource, Temple Sinai of Sharon discovered an alternative path forward: hybrid heat pumps.

  • Diman Regional Vocational Technical High School – Fall River | Case Studies | Mass Save

    A Mass Save Workforce Training Grant equipped Diman students with hands-on heat pump training, strengthening HVAC skills and supporting clean energy adoption.

  • C10.2 TEDI: Common Mistakes & How to Avoid Them

    The Targeted Performance Path of the Massachusetts Stretch Code 2023/2025 requires projects to use energy modeling to demonstrate compliance with heating and cooling Thermal Energy Demand Intensity (TEDI) targets. This one-hour training focuses on common mistakes observed in projects following the Targeted Performance Path and provides strategies for identifying and avoiding them.

  • C10.1 Documentation and Tools

    This two-hour training focuses on the two most common performance-based compliance options, Targeted Performance and Relative Performance. The Targeted Performance path requires projects to use energy modeling to demonstrate compliance with the heating and cooling Thermal Energy Demand Intensity (TEDI) targets.

  • C9.5 TEDI Modeling for Commercial Compliance

    Under the new Massachusetts Stretch Code, 225 CMR 23, new commercial buildings over 20,000square feet must use a performance path for compliance. This training focuses on the Targeted Performance Path. The Targeted Performance path requires projects to use energy modeling to demonstrate compliance with the heating and cooling Thermal Energy Demand Intensity (TEDI) targets.