Energy Efficiency

Energy efficiency seeks to reduce the amount of energy required for energy related services, such as heating, cooling, hot water, and lighting, and is applicable to all building sizes and types.​ Lowering energy use to provide these services often decreases energy costs.  The energy efficiency process typically begins with a home energy assessment or energy audit during which an energy specialist identifies opportunities to reduce energy use. (Assessments through Mass Save® may be offered virtually due to COVID-19.)  Energy efficiency opportunities may include one or more of the following:

  • Instant Savings Measures or Products: Measures/products that immediately save energy upon installation (e.g., LED lightbulbs, advanced power strips, low-flow showerheads, faucet aerators, and efficient thermostats.)
  • Weatherization: Improvements to the building envelope to seal air leaks (e.g., around doors, windows, or in the attic) or add insulation (e.g. wall or attic insulation.)
  • Equipment and Appliances: Heating, ventilation, and air conditioning equipment as well as hot water equipment and other appliances (e.g. clothes washers, refrigerators, etc.) often use a significant amount of energy in a home. Replacing inefficient equipment or appliances with more efficient options can save money and energy.

To meet customers’ unique needs, program options will vary based on building and occupant type, as well as utility provider. Visit the pages below to learn more about program offerings applicable to you: