Discover the Benefits of Energy Efficiency

Enjoy the savings and comfort of energy efficiency while decreasing your carbon footprint.

WE ARE MASS SAVE®:

An aerial photo of a Massachusetts River, Bridge and habitat walkway

The Mass Save 2024 Annual Impact Report

Discover how we are helping customers save energy across the state.

An energy efficient heat pump in Massachusetts

Reduce fossil fuel dependency with electrification

The Sponsors of Mass Save can help you improve comfort and reduce carbon emissions when you electrify your home or business.

A person using an energy efficient heat pump

Upgrade to clean heating and cooling—all in one unit

We are making the purchase and installation of energy-efficient heat pumps affordable for Massachusetts residents and businesses.

Saving Energy and the Environment

Mass Save represents the programs, services, offers and resources provided by Berkshire Gas, Cape Light Compact, Eversource, Liberty, National Grid and Unitil with the goal of equitably saving Massachusetts residents, businesses and communities energy and reducing greenhouse gas emissions.

76 Million

Metric tons of CO₂ reduced^*

$31 Billion

Generated benefits for Massachusetts residents and businesses

*Represents lifetime CO₂ reductions

"We’ve been so happy with the Eversource heat pump program that I’ve become an evangelist about it. I’ve recommended it to neighbors, friends, family, and coworkers."

Travis Drury

Homeowner

"We’re excited about our ability to work with National Grid as an energy advisor to find the most efficient and innovative solutions to set our business up for success."

Jason Leboeuf

CrossFit Co-Owner

"They have fully funded this entire project for us here. The students are getting great training. Without their funding, we would’ve had to find the funding within our budget to do this."

Brian Bentley

Diman Regional Vocational Technical High School Superintendent

In The News

The latest ways we are engaging our community to create a better, more sustainable future for Massachusetts.

June 16, 2025

June 18 Massachusetts Energy Efficiency Advisory Council (EEAC) Public Meeting

June 10, 2025

The Sponsors of Mass Save® Launch 2025 Main Streets Initiative to Connect Small Businesses with Energy Saving Opportunities

January 22, 2025

The Sponsors of Mass Save® Honor 2024 Climate Leaders

October 24, 2024

The Sponsors of Mass Save® Receive Unanimous EEAC Support on Planned Submission of Transformational Energy Efficiency & Decarbonization Three-Year Plan

October 22, 2024

Sponsors of Mass Save® Launch Fourth Round of Grant to Support Energy Efficiency Education

October 02, 2024

The Sponsors of Mass Save® Announce 2024 Climate Leaders

September 25, 2024

The Sponsors of Mass Save® Submit an Update to the Draft of The Massachusetts 2025–2027 Energy Efficiency and Decarbonization Plan

August 21, 2024

The Sponsors of Mass Save® Submit an Update to the Draft of The Massachusetts 2025-2027 Energy Efficiency and Decarbonization Plan

July 24, 2024

The Sponsors of Mass Save® Visit 88 Communities Across Massachusetts to Connect Small Businesses with Energy Saving Opportunities

July 23, 2024

Supplier Diversity Summits Empower Over 80 Local Minority- and Women-Owned Businesses with Mass Save® Business Opportunities

June 07, 2024

The Sponsors of Mass Save® 2024 Main Streets Initiative Connects Small Businesses Across Berkshire County with Energy Efficiency Upgrades

April 30, 2024

Sponsors of Mass Save® Accepting Applications for Community Education Grants

April 02, 2024

The Sponsors of Mass Save® Submit a Draft of The Massachusetts 2025-2027 Energy Efficiency and Decarbonization Plan

March 28, 2024

Mass Save® Sponsors Highlight Benefits Delivered to Advance Decarbonization Efforts in The Path to Carbon Neutral Report

March 26, 2024

The Sponsors of Mass Save® Earn 2024 ENERGY STAR® Partner of the Year Award for Sustained Excellence

February 27, 2024

Mass Save® Sponsors Announce Record Number of Heat Pump Installations Across Massachusetts

December 20, 2023

The Sponsors of Mass Save® and ABCD Host EOHLC Secretary Ed Augustus at Arlington Senior and Disabled Multi-Family Residence: $1.3M Project Exemplifies Low-Income Climate Equity Work Performed Statewide

Mass Save, ABCD, and Arlington representatives meeting

November 09, 2023

The Sponsors of Mass Save® and Generac Grid Services Awarded $50 Million DOE Grant to Deploy Battery Systems in 2,000 Massachusetts Homes

October 05, 2023

The Sponsors of Mass Save® Announce New Cohort of Climate Leaders, 14 Winners Recognized for Outstanding Efforts towards a Net Zero Future

September 20, 2023

Sponsors of Mass Save® Win Prestigious Stars of Energy Efficiency Award

September 07, 2023

The Sponsors of Mass Save® Award $85,000 in Funding to Four Organizations through Community Education Grant

August 01, 2023

The Sponsors of Mass Save® Announce Partnership with Rewiring America

June 16, 2023

The Sponsors of Mass Save® Launched Kick-Off Event to Welcome New Cohort of Interns to the Clean Energy Pathways Program

May 16, 2023

The Sponsors of Mass Save® Launch Applications for the Third Cohort of the Community Education Grant

March 28, 2023

The Sponsors of Mass Save® Earn National Recognition as ENERGY STAR Partner of the Year for 3rd Year in a Row

March 01, 2023

The Sponsors of Mass Save® Announce Nine New Community First Partnership Awardees for 2023-2024

February 28, 2023

The Sponsors of Mass Save® Release 2022 Mass Save®: Path to Carbon Neutral Report

February 24, 2023

Mass Save® Sponsors Host More than 500 Contractors at Annual Business Partner Event

January 31, 2023

The Sponsors of Mass Save® Award $343,000 to Five Community Organizations Committed to Diversifying the Energy Efficiency Workforce

December 08, 2022

First-of-its-kind Supplier Diversity Summit Connects More Than 150 Local Minority and Women Owned Businesses to Mass Save® Programs

November 01, 2022

Mass Save® Sponsors Award More Than $275,000 in Community Education Grant Funding to 21 Organizations

October 27, 2022

The Sponsors of Mass Save® Announce the Workforce Partnership Grant

October 05, 2022

The Sponsors of Mass Save® Announce Inaugural Group of Climate Leaders, 19 Winners Recognized for Outstanding Efforts to Creating a Greener Future

September 23, 2022

Mass Save® Clean Energy Pathways Interns on Path to New Jobs

June 01, 2022

Mass Save® Sponsors Launch Community Education Grant

May 06, 2022

The Sponsors of Mass Save® Earn National Recognition as Energy Star® Partner of the Year for 2nd Year in a Row

April 08, 2022

Mass Save® Sponsors Announce Rebates on Battery-Powered Lawn Equipment Purchases

February 14, 2022

The Sponsors of Mass Save® Announce 30+ Municipal and Community-Based Organizations to Participate in 2022-2024 Community First Partnership

February 01, 2022

2022-2024 Energy Efficiency Plan

November 02, 2021

The Sponsors of Mass Save® Submit Three-Year Electric and Natural Gas Energy Efficiency Plan

September 28, 2021

The Sponsors of Mass Save® Announce the Release of New Mass Save®: Path to Carbon Neutral Report

July 16, 2021

Statement on the Massachusetts Executive Office of Energy and Environmental Affairs’s (EEA) Statewide Greenhouse Gas Reduction Goals Announcement

June 10, 2021

Mass Save® Announces Launch of Clean Energy Pathways Program

April 13, 2021

The Sponsors of Mass Save® win 2021 ENERGY STAR® Sustained Excellence Award

February 24, 2021

Mass Save® Sponsors Increase Incentives for Select Foodservice Equipment

February 18, 2021

Eversource and National Grid Announce 2021 Municipal Partnership Participants

November 17, 2020

Eversource and National Grid Recognized for Initiatives to Protect Health & Safety of Customers and Contractors during COVID-19

November 13, 2020

Mass Save® Sponsors Celebrate National Recycling Day With 83,767 Appliances Recycled

November 05, 2020

Mass Save® Sponsors Partner with Massachusetts Fallen Heroes for the Fifth Year in a Row

October 01, 2019

Massachusetts ranked number one in energy efficiency for ninth consecutive year

May 01, 2019

The Sponsors of Mass Save® Win Award for Energy Efficiency Leadership in Commercial Heating and Cooling Two Years in a Row

April 09, 2019

The Sponsors of Mass Save® Earn 2019 ENERGY STAR® Partner of the Year – Sustained Excellence Award

February 01, 2019

The Sponsors of Mass Save® are proud to announce the approval of the new Three-Year Energy Efficiency Plan

January 16, 2019

The Sponsors of Mass Save® Earn National Recognition For Commercial and Industrial Energy Efficiency Program

October 04, 2018

Massachusetts ranked number one in energy efficiency for eighth consecutive year

August 09, 2016

Massachusetts Energy Efficiency Efforts Providing Unprecedented Savings to Customers

June 15, 2016

The Sponsors of Mass Save® Offer Residents $50 for Recycling Refrigerators or Freezers

June 15, 2016

Mass Save® Announces Program to Offer Veteran Support

March 28, 2016

EPA Recognizes Mass Save® as a 2016 ENERGY STAR® Partner of the Year

A mother and daughter hug on a bench in Massachusetts