Massachusetts Solar Incentives & Rebates 2026

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The federal 30% solar tax credit expired December 31, 2025. But Massachusetts homeowners still have access to one of the strongest solar incentive stacks in the country — worth $15,000 to $20,000+ over 20 years.
Between SMART 3.0, net metering Massachusetts 2026 credits, the Massachusetts solar tax credit, two permanent tax exemptions, and the ConnectedSolutions battery rebate, the financial case for solar in Massachusetts remains strong. Most systems pay back in 7–9 years — with or without federal support.
At East Coast Renewable Energy, we handle every application and enrollment for you.

Every Active Massachusetts Solar Incentive in 2026

Program	Value
SMART 3.0	$0.03/kWh for 20 years ($0.07 with battery)
Massachusetts solar tax credit	15% of cost, max $1,000
Net metering	~$0.29–$0.32/kWh in bill credits
Sales tax exemption	6.25% off total system cost
Property tax exemption	20 years, fully automatic
ConnectedSolutions battery rebate	~$275/kW/year

SMART Program Massachusetts Solar.

The SMART 3.0 program pays you per kWh your system produces for 20 years. Your rate locks in at enrollment and never changes. The base rate is $0.03/kWh for residential systems — roughly $324/year for a 9 kW system, or $6,480 over the full term. Add a battery and the storage adder brings your rate to $0.07/kWh, worth ~$756/year and $15,120 over 20 years.
Available to Eversource, National Grid, and Unitil customers. ECR submits your SMART application through PowerClerk — you don’t fill out a single form.

Massachusetts Solar Tax Credit $1,000

The Massachusetts state solar tax credit equals 15% of your net system cost, capped at $1,000. Claimed on your state return via Schedule EC in the year of installation. Non-refundable but carries forward up to 3 years. Stacks with every other program here.

Net Metering Massachusetts 2026

Net metering is the biggest financial driver of solar in Massachusetts — larger than SMART for most homeowners. Your utility credits your bill at the full retail rate (~$0.29–$0.32/kWh) for every kilowatt-hour your panels send to the grid. A 10 kW system typically generates $3,200–$3,800 in annual bill savings and $80,000–$100,000+ over 25 years.
Note: The MA DPU opened an investigation into potential net metering rate cuts in early 2026. Installing now locks in current rates for your system’s lifetime.

Massachusetts Solar Property Tax and Sales Tax Exemptions

Two permanent exemptions apply automatically to every installation in Massachusetts — no application required.
The solar sales tax exemption removes the state’s 6.25% sales tax from your system purchase. On a $33,000 system that’s $2,063 saved at point of sale.
The solar property tax exemption protects the $15,000–$25,000 in added home value from solar against property tax increases for 20 years — saving $300–$500 per year.

ConnectedSolutions Battery Rebate Massachusetts

If you add a home battery, the ConnectedSolutions program from Eversource and National Grid pays you ~$275/kW/year to allow the utility to draw from your battery during summer peak hours. A typical Powerwall earns $1,000–$1,200/year for 5 years. Stacks directly with the SMART 3.0 battery adder.

Is Solar Worth It in Massachusetts in 2026?

Yes — here’s what the full incentive stack looks like for a typical 10 kW system with a battery:

Incentive	Estimated value
Net metering (25 years)	~$82,500
SMART 3.0 with battery adder (20 years)	~$15,120
ConnectedSolutions (5 years)	~$5,000–$6,000
Sales tax exemption	~$2,063
Property tax exemption (20 years)	~$6,000–$10,000
Massachusetts solar tax credit	$1,000
Total incentive value	~$111,000–$116,000
System cost	~$33,000–$38,000
Net 25-year savings	~$75,000–$83,000

Frequently Asked Questions

Did the federal solar tax credit expire in Massachusetts?

Yes. Section 25D expired December 31, 2025. The Massachusetts state solar tax credit — 15%, up to $1,000 — is separate and still active.

How much does the SMART program pay?

$0.03/kWh for 20 years at the base rate. $0.07/kWh with a battery. A 9 kW system earns $324–$756/year.

How do I apply for the SMART program in Massachusetts?

Your installer applies on your behalf. ECR handles this for every customer — you submit nothing directly.

Does Massachusetts have a solar sales tax exemption?

Yes. Solar equipment is exempt from the 6.25% state sales tax. Applied by your installer at point of sale.

Does solar raise my property taxes in Massachusetts?

No. Added home value from solar is exempt from property tax increases for 20 years — automatically.

Last updated: June 2026. Details subject to change.

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East Coast Renewable Energy serves homeowners across Massachusetts. We handle every incentive — from SMART enrollment to net metering setup — so you capture everything you’re entitled to.

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