Mass Save Incentives for Multifamily New Construction

Mass Save offers significant incentives for new multifamily construction in Massachusetts, but most developers leave money on the table because they do not understand how the programs work or they miss the application window.

What Mass Save Offers for New Construction

Mass Save's new construction program for multifamily buildings provides financial incentives for projects that exceed minimum energy code requirements. The incentives are structured around performance tiers. The better your building performs relative to code, the higher the incentive.

The program covers several categories: envelope upgrades, high-efficiency HVAC systems, domestic hot water systems, lighting, and appliances. For multifamily projects, the incentives are calculated per unit and can add up quickly on larger developments.

How Much Money Is Actually Available

The numbers are real. On our projects, we have seen Mass Save incentives range from a few hundred dollars per unit on basic projects to over $2,500 per unit at the Energy Star tier. Projects that achieve Passive House certification can qualify for up to $3,750 per unit.

On a recent 296-unit project, we identified $560,000 in MassSave incentives by voluntarily certifying buildings that code did not require to be certified. The low-rise buildings in the development were already meeting Energy Star MFNC thresholds based on their design. Every unit type cleared the compliance threshold without any additional design cost. The developer just needed to submit the certification paperwork.

That is $560,000 that would have been left on the table if nobody ran the numbers.

On another project, a developer was considering cutting their Energy Star enrollment to save on consulting fees. We showed them that the $8,000 in additional consulting costs would unlock over $120,000 in incentives. The math was not close.

Eligibility Requirements

To qualify for Mass Save new construction incentives, your project generally needs to:

• Be new construction or gut rehabilitation
• Be located in a municipality served by a participating investor-owned utility (most of Massachusetts, but not municipal electric territories like Holyoke, Taunton, or Braintree — if your project is in a municipal electric zone, Mass Save incentives are not available, and this is the gotcha that catches developers off guard)
• Enroll in the program before construction begins (this is the deadline most developers miss)
• Meet minimum performance thresholds above code requirements
• Have energy modeling completed by a qualified professional
• Complete required inspections and testing

The enrollment deadline is the most common pitfall. If you start construction before enrolling, you may lose eligibility for some or all incentives. We have seen developers leave six figures on the table because they did not enroll in time.

The Application Timeline

The process works best when it starts early:

Design phase: Enroll in the Mass Save program. Your energy consultant identifies which incentive tiers your project can hit and what design decisions affect eligibility.

Pre-construction: Submit the energy model and incentive application. Get preliminary approval for the incentive amount.

Construction: Complete required inspections at key milestones. Your HERS rater documents compliance with the incentive program requirements.

Post-construction: Submit final documentation including HERS certificates, test results, and as-built specifications. Receive the incentive payment.

The timeline from enrollment to payment typically spans the full construction lifecycle. On a standard multifamily project, that is 12 to 24 months.

How ECC Handles Incentive Administration

We manage the entire incentive process for our clients. That includes enrollment, application, documentation during construction, and final submission. The developer does not need to track deadlines or fill out forms.

On every feasibility study we run, we include the incentive analysis. The study shows not just the compliance costs for each path, but the net cost after incentives. Sometimes the path that looks more expensive upfront is actually cheaper after incentives, and without the analysis, developers would never know.

Common Pitfalls

Missing the enrollment deadline. This is the biggest one. Enroll before construction starts.

Wrong documentation. Incentive programs require specific documentation at specific milestones. Missing a required inspection or submitting incomplete test results can delay or reduce your payment.

Not running the numbers on voluntary certification. Some buildings in your project may qualify for additional incentive tiers even if code does not require that level of certification. If you do not run the analysis, you will never know what you are leaving behind.

Assuming your architect or GC handles this. Most architects and general contractors are not tracking incentive programs. This is specialized work that requires someone who knows the programs, the thresholds, and the documentation requirements.

Ignoring DOER Alternative Energy Credits. Beyond Mass Save, the Massachusetts Department of Energy Resources offers Alternative Energy Credits that can add significant value to high-performance buildings. These are separate from Mass Save incentives and are often overlooked.