Key takeaway
Holliston homeowners can book a no-cost Mass Save home energy assessment, get rebates on insulation and heat pumps, borrow at 0% through the Mass Save HEAT Loan and earn battery payments through Eversource's ConnectedSolutions program. The town adds its own help: a Sustainability Department, the Holliston Community Choice electricity program and state Green Communities grants for town buildings.
Who this is for: Holliston homeowners and renters who want lower energy bills and aren't sure which programs they qualify for.
Between Mass Save, Eversource and the town, there's more help available in Holliston than most people realize. The hard part is knowing where to start. Here's a rundown of the programs open to Holliston households right now and how they fit together.
Holliston Energy Programs at a Glance
| Program | What you get | Who runs it |
|---|---|---|
| Home energy assessment | A specialist walks through your home and lists the upgrades worth doing | Mass Save, through Eversource |
| Weatherization rebates | Money toward insulation and air sealing | Mass Save |
| Heat pump rebates | Money toward efficient electric heating and cooling | Mass Save |
| HEAT Loan | 0% financing on qualifying upgrades, batteries included | Mass Save and participating lenders |
| ConnectedSolutions | Payments to battery owners for sharing power on peak days | Eversource |
| Holliston Community Choice | A town-chosen electricity supply with renewable content | Town of Holliston |
| Solar incentives | State tax credit, SMART payments, net metering | Commonwealth of Massachusetts |
Offers and rebate amounts change through the year. Confirm current details with Mass Save and Eversource before you start a project.
Start With a Mass Save Home Energy Assessment
Mass Save is the statewide efficiency program paid for by the utilities, Eversource included. For a Holliston home, the assessment is the natural first step. An energy specialist checks your attic, walls, windows, heating system and appliances, then hands you a list of upgrades ranked by what they'll save and which rebates come with them. Renters can often take part too, with the landlord's sign-off.
Many Holliston houses have drafty attics and walls that were insulated decades ago, if at all. Sealing those leaks is often the quickest way to make a house warmer and lower the winter bill.
Heat Pumps, Insulation and Air Sealing
A lot of Holliston homes heat with oil or propane, and those are the houses where a heat pump can make the biggest difference. Heat pumps run on electricity, heat in the winter, cool in the summer and can replace an old system or work alongside it. Mass Save offers heat pump rebates, and the HEAT Loan can spread the cost out at 0% for qualifying work.
Do the insulation and air sealing first. A tighter house needs a smaller heat pump, which costs less to buy and less to run.
Programs From the Town of Holliston
- Sustainability Department. Holliston hired its first Sustainability Coordinator in 2020. The department answers questions about energy programs, recycling and the town's electricity program, and you can reach it at sustainability@holliston.k12.ma.us.
- Climate Action Plan. The Select Board saw the town's finished Climate Action Plan in July 2026, which lays out how Holliston plans to cut energy use and emissions.
- Holliston Community Choice. The town's electricity aggregation, running since 2016, buys power supply in bulk for residents, with renewable content and no fees to join or leave.
- Green Communities grants. Holliston has received state Green Communities grants for clean energy projects in town buildings.
- Composting and recycling. Curbside food scrap pickup with Black Earth and the Marshall Street Recycling Center help cut down on trash.
Getting Paid for a Home Battery
If you own a home battery or plan to add one, Eversource's ConnectedSolutions program pays you to let it send stored power to the grid on a limited number of peak summer afternoons. You still have the battery for backup power when the grid goes down, and you can sit out an individual event. The HEAT Loan can help pay for the battery at 0% when it qualifies.
Massachusetts Solar Incentives for Holliston Homeowners
If you're adding solar panels to your Holliston home, the state still offers a 15% income tax credit up to $1,000, a sales tax exemption on qualifying equipment, 20 years of property tax relief on the system, SMART payments and net metering credits on your Eversource bill. The federal residential solar credit ended for systems installed after December 31, 2025.
Extra Help for Income-Eligible Households
Holliston households that meet income guidelines can get enhanced Mass Save offers, which often cover weatherization and some equipment at no cost. Eversource also has a discount rate for customers who qualify. Bring up both when you book your assessment.
Ready to add solar to the mix?
Mark Featherstone lives here in Holliston and has helped more than 1,000 happy customers go solar. Send him your address and he'll show you how solar works alongside the programs you're already using.
Mark, run my numbers!FAQs About Home Energy Programs in Holliston
How do I book a Mass Save assessment in Holliston?
Schedule it online through Mass Save or by phone. Holliston homes with Eversource electric service qualify.
Does the Town of Holliston give its own energy rebates?
Most rebates come from Mass Save and Eversource. The town's role is the Sustainability Department, the Community Choice electricity program and projects in town buildings funded by Green Communities grants.
Can I get 0% financing for a heat pump in Holliston?
In many cases. Through participating lenders, the Mass Save HEAT Loan covers qualifying heat pumps, insulation and batteries at 0% interest.
Will Eversource pay me for having a home battery?
Through ConnectedSolutions, yes. Eversource pays enrolled battery owners for letting the battery share stored energy on a set number of peak summer days.
About Mark Featherstone
Mark has been in solar for 14+ years, working at some of the biggest solar companies in the country, before co-founding Your World Solutions. His goal is simple: help homeowners get into solar deals that actually work for them, and make sure they understand every part of it before they sign.