Battery Storage

Earn incentives and lower carbon emissions by enrolling a battery storage system in ConnectedSolutions.
A battery storage system in a Massachusetts residence garage

The Sponsors of Mass Save offer incentives for reducing energy use during periods of peak electricity demand.

A battery storage system operates like a rechargeable phone, tablet, or laptop battery, but on a much larger scale. Many residents use battery storage systems to be prepared for power outages.

Through ConnectedSolutions, residents receive incentives for lowering and/or shifting electricity usage during times of peak demand (like hotter days during the summer). Residents will receive $275 per kilowatt (kW) for a battery’s average contribution during summer events.

Discover additional ways to electrify your home and lower your carbon footprint.

  1. Confirm Eligibility
    View the Eligibility Tab to confirm the eligibility requirements.
  2. Purchase Eligible Equipment
    Purchase and install an eligible battery storage system from an installer. Refer to the Participating Manufacturers Tab for a list of qualified products.
  3. Enroll in ConnectedSolutions
    Enroll through your manufacturer:

    For additional information, please refer to the Program Details Overview. 

  4. Participate in the Program
    By enrolling your home battery system, you will earn incentives for allowing your Mass Save Sponsor to draw energy stored in your battery during times of peak electricity demand.
    Your Mass Save Sponsor will automatically send a signal to your system no more than 60 times per summer, with each event lasting a maximum of three hours. Summer events will occur on non-holidays between June 1 and September 30, between the hours of 3:00 p.m. and 8:00 p.m.
  5. Receive Incentives
    Your Mass Save Sponsor will pay $275 per kilowatt (kW) for your battery’s average contribution during summer events.
    For a typical battery capable of a 5-kW continuous contribution during these events, customers could receive up to $1,375 per year of participation.

For a full list of eligibility requirements, please reference the Program Details.

  • Must be an existing customer of Cape Light Compact, Eversource, or National Grid
  • Must be one of the qualifying systems listed below with an inverter size less than 50kW. Systems 50 kW or larger should enroll through the Commercial ConnectedSolutions Program
  • Battery systems must either be installed with a new solar panel system, added to an existing solar system, or installed as a stand-alone battery storage system

Residents can participate in the program by either installing a battery storage system with a new solar panel system, adding a battery storage system to an existing solar system, or installing a stand-alone battery storage system for their home.

A device called an inverter will control your battery. Qualifying inverters include:

The Sponsors of Mass Save offer 0% Financing HEAT Loans to make energy efficiency upgrades more affordable to Massachusetts residents. Through this loan, you could qualify for a loan up to $50,000 toward qualified home improvements. Batteries are eligible for up to $25,000 in financing.

A person configuring an integrated control thermostat

​​​Not Sure Where to Start?

Start your home energy efficiency journey with a no-cost virtual or in-person home energy assessment. An Energy Specialist will seek out inefficiencies, recommend upgrades, and help you access available rebates and incentives.

An energy efficient kitchen in Massachusetts

Case Study: All-Electric Home in Acton

When setting out to build a new home, homeowners in Acton wanted a high level of energy efficiency and a low carbon footprint. With a ducted heat pump, heat pump water heater, solar array, and battery storage, these homeowners have an annual electric savings of 9,595 kWh.