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  • Mass Save Data

    Collectively, the energy efficiency investments of these homes and businesses have helped make Massachusetts a top-ranked state for energy efficiency. Mass Save Data, provides detailed data and information on the year-to-date performance of energy efficiency in Massachusetts, including total energy savings, budgetary investments and benefits.

  • Mass Save | Steam Traps & Surveys

    Steam traps are automatic valves releasing condensed steam while preventing the loss of live steam. Maintaining a regular schedule of steam trap repair and replacement allows steam to flow at a controlled or adjusted rate for optimal energy efficiency.

  • Mass Save | Chillers

    Efficient chillers can lower the temperature of machinery and industrial spaces—reducing the wear and tear on equipment and lowering energy costs.

  • Fitchburg Public Schools | Case Studies | Mass Save
  • Varone Home – Holliston | Case Studies | Mass Save

    Massachusetts residents Tony and Mary Varone have enjoyed over 45 years in their Holliston home. With their retirement years ahead of them, the couple started evaluating their household expenses, including energy costs, to find ways to better manage their budget while improving energy efficiency.

  • Finch Passive Home – Cambridge | Case Studies | Mass Save

    Case Study: Finch CambridgeFinch Cambridge is an ultra-efficient Passive House certified six-story building and the largest Passive House project completed to date in New England. Developed by Homeowner’s Rehab, Inc., with a focus on efficiency, climate resilience, and residential comfort and health, the 111,450-square-foot building has 98 units, all deed-restricted to be affordable for low-income tenants.

  • Path to Carbon Neutral | Mass Save

    The Mass Save energy efficiency programs continued to drive meaningful reductions in greenhouse gas emissions in 2023. These programs resulted in 223,000 metric tons of CO2 avoided. That’s the equivalent of taking over 53,000 gasoline-powered passenger vehicles off the road for one year.

  • Homeowners | Get Started | Mass Save
  • Mass Save | Efficiency First

    The Sponsors of Mass Save® are helping you prepare for a new heating system by increasing your home’s efficiency.

  • Mass Save | Thermostats

    With smart thermostats, your business can save money, energy, and time by monitoring and controlling heating and cooling needs during any season.