Mass Save® is Massachusetts’ statewide energy efficiency and electrification initiative, led by a collaborative of Berkshire Gas, Cape Light Compact, Eversource, Liberty, National Grid, and Unitil. Through a range of services, rebates, incentives, trainings, and information, Mass Save solutions help residents, businesses, and communities make energy upgrades that support a cleaner, more affordable energy future.
*Represents lifetime CO2 reductions
Discover how we are providing long-term value and community benefits across the state.
Massachusetts’ electric utilities now offer seasonal heat pump rates designed to reduce winter energy costs for residential customers who heat their homes with electric heat pumps.
The Sponsors of Mass Save can help you improve comfort and reduce carbon emissions when you electrify your home or business.
We are making the purchase and installation of energy-efficient heat pumps affordable for Massachusetts residents and businesses.
Mini-splits vs. central AC: which cooling system is right for your home?
Compare mini-splits vs. central AC, including costs, efficiency, and Mass Save rebates, to find the best cooling system for your home.
Practical energy-saving tips for renters: how to save money and boost comfort
Discover practical energy-saving tips for renters to save money, stay comfortable year-round, and make your home more eco-friendly.
How to use your smart thermostat for maximum savings
Discover smart thermostat strategies that help you save money, improve comfort, and maximize home efficiency.
Spring energy refresh: what to clean, check, and upgrade before cooling season
Get your home ready for spring with practical tips including maintenance and energy efficiency upgrades to enhance your home’s comfort and reduce costs.
Where the most energy is used in your home and how to save
Learn where the most energy is used in your home and discover the biggest opportunities to save, plus tips on efficiency upgrades, insulation, air sealing, and rebates.
Simple ways to improve efficiency in your commercial HVAC system
Improve the energy efficiency of your commercial HVAC with small, practical upgrades that boost performance, reduce strain, and support long-term system reliability.
The latest ways we are engaging our community to create a better, more sustainable future for Massachusetts.
