What Happened to the Federal Solar Tax Credit?
What Happened to the Federal Solar Tax Credit & What's Still Available?
Key Facts at a Glance
Federal credit: the federal Residential Clean Energy Credit (30%) expired for systems placed in service after December 31, 2025, and is no longer available for new residential solar.
Rhode Island: Renewable Energy Fund (REF) grant plus net metering — typical payback roughly 7–10 years.
Connecticut: Residential Renewable Energy Solutions (RRES) program through PURA — typical payback roughly 8–11 years.
Massachusetts: the SMART program plus a 15% state income tax credit (capped at $1,000) — typical payback roughly 6–9 years.
The 30% federal solar tax credit was a cornerstone incentive that helped homeowners across the country afford solar for nearly two decades. With it expired as of January 1, 2026, many homeowners in Rhode Island, Connecticut, and Massachusetts are asking what’s left. The short answer: strong state programs remain. This guide explains what the federal credit was, what its expiration means, the current 2026 state incentives in all three states, and an honest look at whether solar still pays off without it.
What Was the Federal Solar Tax Credit?
The federal Residential Clean Energy Credit let homeowners claim 30% of the total cost of a solar energy system — panels, inverters, installation, and battery storage installed with solar — as a credit against their federal income taxes. By cutting roughly a third off the net cost, it was the single biggest driver of residential solar adoption nationwide.
- 30% credit: homeowners could reduce their federal tax liability by 30% of the system cost.
- Non-refundable but carryforward allowed: any credit exceeding the tax owed could be carried to future years.
- Broad eligibility: applied to new construction and existing homes.
This incentive made solar installations more affordable upfront and improved the return on investment for homeowners.
The Federal Tax Credit Has Expired
As of the end of 2025, the federal Residential Clean Energy Credit expired for new residential solar installations. Homeowners installing systems in 2026 and beyond can no longer claim the 30% federal credit. It’s a meaningful change — but it does not mean solar stopped making financial sense. The focus simply shifts to the state programs and net metering that continue to make solar pay off in RI, MA, and CT.
What This Means for Homeowners Considering Solar
With the federal credit gone, solar is still a strong investment in Rhode Island, Connecticut, and Massachusetts thanks to robust state programs, utility incentives, net metering, and financing. Add steadily rising electricity rates and continued declines in equipment cost, and the long-term math still favors going solar — the state-level incentives below just carry more of the weight now.
Homeowners should approach solar with a clear understanding of the available incentives and financing options in their state to maximize savings and benefits. The absence of the state tax benefits means that state programs and local utility incentives play an even more critical role in reducing upfront costs and improving the financial outlook of solar installations.
State Solar Incentives Still Available in Rhode Island
Rhode Island continues to offer several robust incentives that support solar adoption despite the state solar incentives transitioned. Key programs include:
- Renewable Energy Fund (REF): This state program provides rebates to residential solar customers, helping to reduce the initial cost of solar installations, administered by the Rhode Island Office of Energy Resources.
- Net Metering: Rhode Island’s net metering policy allows homeowners to receive credits on their electricity bills for excess solar energy they export to the grid, effectively lowering monthly energy costs.
- Utility Rebates: Utilities such as National Grid and Eversource offer rebates for solar installations and battery storage systems, further reducing upfront expenses.
These incentives, combined with financing options, make solar accessible and financially attractive for Rhode Island homeowners. For more details, visit the Rhode Island Solar Incentives page. The authoritative source for these programs is the Rhode Island Office of Energy Resources.
State Solar Incentives Still Available in Connecticut
Connecticut continues to support residential solar through PURA’s current program after the federal credit’s expiration:
- Residential Renewable Energy Solutions (RRES): administered by PURA, this is Connecticut’s current residential program — homeowners choose a Netting tariff (net-metering-style credits) or a Buy-All tariff (a fixed rate for all production). RRES replaced the older RSIP and ZREC programs, which are now closed to new applicants.
- Utility programs: Eversource and United Illuminating offer interconnection and additional incentives for solar and battery storage.
These state solar incentives and utility programs help maintain the financial appeal of solar energy in Connecticut. Learn more at the Connecticut Solar Incentives page. The authoritative source for these programs is the Connecticut Green Bank.
State Solar Incentives Still Available in Massachusetts
Massachusetts offers one of the most developed solar incentive frameworks in the region, ensuring that solar remains a compelling option even without the state solar incentives. Key incentives include:
- SMART program: a performance-based incentive paying per kWh of solar production, with adders for battery storage, administered through the state and utilities.
- State income tax credit: Massachusetts offers a residential solar tax credit of 15% of system cost, capped at $1,000.
- Net metering: credits for excess energy sent to the grid.
- SRECs / Class I RECs: Massachusetts has a market where solar owners can earn additional value from certificates.
- Utility rebates: National Grid and Eversource offer solar and storage incentives.
Authoritative source: the Massachusetts Clean Energy Center (MassCEC) and the Department of Energy Resources (DOER).
These incentives collectively support solar adoption and help maintain strong financial returns for Massachusetts homeowners. Visit the Massachusetts Solar Incentives page for more information. The authoritative source for these programs is the Massachusetts Clean Energy Center (MassCEC).
How Much Can Homeowners Still Save Without the State Credit?
Even without the federal tax credit, homeowners in Rhode Island, Connecticut, and Massachusetts still benefit from strong state-level programs, net metering, and protection against some of the highest electricity rates in the country. Which combination applies to you depends on your state, utility, and system — here’s what’s available in each.
- Rhode Island: The Renewable Energy Fund (REF) offers a small-scale grant (around $0.65 per watt, capped near $5,000), the Renewable Energy Growth (REG) program pays a performance tariff for what your system produces, and net metering through Rhode Island Energy credits excess generation and lets you size a system up to 125% of your annual usage.
- Connecticut: The Residential Renewable Energy Solutions (RRES) program through PURA pays ongoing value for your solar production via a Netting or Buy-All tariff — this replaced the older, now-closed RSIP and ZREC programs — and net metering credits apply with Eversource and United Illuminating. Pairing with battery storage improves the economics.
- Massachusetts: The SMART program pays a per-kWh production incentive for 10 years, the state income tax credit is worth 15% of system cost (capped at $1,000), net metering credits excess generation, and solar equipment is exempt from sales tax and from added property tax for 20 years.
How Solar Incentives Lower Your Net Cost in RI, MA & CT
Your real numbers depend on your system size, roof, utility, and electricity usage — so instead of generic dollar figures, here’s how each state’s incentive stack reduces what you pay, and how to get a precise estimate for your specific home.
| State | Key Programs | What It Does |
|---|---|---|
| Rhode Island | Renewable Energy Fund (REF) | Upfront small-scale grant (~$0.65/W, capped near $5,000) |
| Renewable Energy Growth (REG) | Performance tariff paid for system production | |
| Net Metering (RI Energy) | Retail-rate credit for excess generation; size up to 125% of usage | |
| Connecticut | Residential Renewable Energy Solutions (RRES) | PURA tariff (Netting or Buy-All) paying for production — replaced RSIP/ZREC |
| Net Metering (Eversource / UI) | Credit for excess generation sent to the grid | |
| Massachusetts | SMART Program | Per-kWh production incentive paid for 10 years |
| State Income Tax Credit | 15% of system cost, capped at $1,000 | |
| Net Metering & Exemptions | Retail-rate credit; sales-tax and 20-year property-tax exemptions |
Payback Period Estimates (Without State Incentives):
- Rhode Island: roughly 7–10 years, based on net cost after the REF grant and net-metering savings.
- Connecticut: roughly 8–11 years under the RRES program and net metering.
- Massachusetts: roughly 6–9 years, helped by SMART payments and the state tax credit.
How to Apply for State Solar Incentives: Step-by-Step
Rhode Island
- Contact your utility provider (National Grid or Eversource) to inquire about available rebates and net metering policies.
- Choose a certified solar installer familiar with Rhode Island’s Renewable Energy Fund (REF) program.
- Submit your rebate application through the Rhode Island Office of Energy Resources or your utility’s program portal before installation.
- Complete the solar system installation and interconnect with the grid following utility guidelines.
- Receive your rebate payment and start benefiting from net metering credits on your electricity bill.
Connecticut
- Contact your utility provider (Eversource or United Illuminating) to confirm net metering and interconnection requirements.
- Choose a qualified Connecticut solar installer to design your system and confirm eligibility for the Residential Renewable Energy Solutions (RRES) program.
- Enroll in the RRES tariff through PURA (Netting or Buy-All) before your system is energized.
- Install your solar system and complete the interconnection process with your utility.
- Begin earning RRES production payments and net metering credits on your electricity bills.
Massachusetts
- Contact your utility (National Grid or Eversource) to understand available rebates, net metering, and the SMART program.
- Hire a MassCEC-approved solar installer experienced with the SMART program and state tax credit processes.
- Apply for the SMART program incentives and state income tax credit through the Massachusetts Clean Energy Center and your state tax filings.
- Complete installation and interconnect your system with the utility grid.
- Receive SMART program payments, state tax credit benefits, and net metering credits over time.
State Incentive Program Authorities
- Rhode Island: Rhode Island Office of Energy Resources
- Connecticut: Connecticut Green Bank
- Massachusetts: Massachusetts Clean Energy Center (MassCEC)
Side-by-Side: Solar Incentives in Rhode Island vs. Connecticut vs. Massachusetts
| Incentive | Rhode Island | Connecticut | Massachusetts |
|---|---|---|---|
| State Tax Credit | None | None | a percentage |
| Utility Rebate Program | National Grid, Eversource rebates | Eversource, United Illuminating rebates | National Grid, Eversource rebates |
| Net Metering Policy | Available | Available | Available |
| SREC/SMART Program | SREC Market | ZREC Program | SMART Program + SREC Market |
| Estimated Total Incentive Value | Moderate (rebates + net metering + SRECs) | Moderate to High (rebates + ZREC + net metering) | High (SMART + state tax credit + rebates + net metering) |
| Estimated Savings Over 10 Years (Net of Incentives) | varies by system size | a substantial amount | varies by system size |
| Payback Period Estimate Without State Incentives | s | s | s |
Is Solar Still Worth It Without the Federal Credit?
Even without the 30% federal credit, solar remains a financially sound investment in Rhode Island, Connecticut, and Massachusetts. Several factors keep the math strong:
- Rising Utility Rates: Increasing electricity prices make solar-generated power more valuable over time, improving savings.
- Strong State Solar Incentives: State programs, rebates, and performance-based incentives continue to reduce upfront costs and provide ongoing financial benefits.
- Net Metering Benefits: Homeowners receive credits for excess solar energy sent to the grid, lowering monthly bills.
- Declining Solar Costs: Advances in technology and economies of scale have driven down the cost of solar panels and installation.
- Increased Property Value: Solar installations can enhance home resale value, adding to the overall financial benefits.
When combined, these factors ensure that solar remains a smart, long-term investment even without the state tax benefits.
Zero-Down and Low-Interest Financing Options
To further improve solar accessibility, many homeowners in Rhode Island, Connecticut, and Massachusetts can take advantage of zero-down and low-interest financing programs. These options allow homeowners to install solar systems with little or no upfront cost and pay over time through affordable monthly payments. Financing programs are often offered through state agencies, utilities, or private lenders and can be combined with state solar incentives and rebates to maximize savings.
Key Takeaways
- The federal Residential Clean Energy Credit (30%) expired for systems placed in service after 12/31/2025 — it’s no longer available for new installs.
- Solar still pays off thanks to strong state programs: RI’s Renewable Energy Fund & Growth, CT’s Residential Renewable Energy Solutions (RRES, which replaced RSIP/ZREC), and MA’s SMART program.
- Net metering in all three states credits homeowners for excess production.
- Massachusetts also offers a 15% state income tax credit (capped at $1,000); RI and CT do not have a state solar income-tax credit.
- Rising utility rates, falling equipment costs, and added home value keep solar’s long-term case strong without the federal credit.
Frequently Asked Questions
| Key Question | Answer |
|---|---|
| Did the state solar incentives expire? | Yes, the state solar incentives transitioned and is no longer available for new residential solar installations. Homeowners installing solar systems from current onward cannot claim this state tax benefits. |
| What replaced the state solar incentives? | While the state tax benefits has transitioned, state solar incentives, utility rebates, net metering policies, and financing programs in Rhode Island, Connecticut, and Massachusetts continue to support solar adoption and reduce costs for homeowners. |
| Is solar still worth it in Rhode Island without the state credit? | Yes, solar remains a financially smart investment in Rhode Island due to strong state incentives like the Renewable Energy Fund rebates, net metering benefits, and declining solar costs, which help offset the loss of the state credit. |
| What is the best solar rebate in Massachusetts? | The SMART program combined with the state income tax credit of a percentage offers one of the strongest solar rebate frameworks in Massachusetts, providing both upfront and ongoing financial benefits. |
| How do I claim state solar incentives in Connecticut? | Homeowners can claim state solar incentives in Connecticut by applying through the Connecticut Green Bank’s Residential Solar Investment Program and coordinating with their utility providers for rebates and net metering credits. It is important to submit applications before installation to ensure eligibility. |
| Is solar still worth it without the state credit? | Yes, solar remains a financially smart investment due to strong state incentives, net metering benefits, declining solar costs, and rising electricity prices, all of which contribute to attractive long-term savings. |
| Where can I learn more about state-specific solar incentives? | For detailed information, visit the Rhode Island Solar Incentives, Connecticut Solar Incentives, and Massachusetts Solar Incentives pages, or contact the Rhode Island Office of Energy Resources, Connecticut Green Bank, and Massachusetts Clean Energy Center (MassCEC) respectively. |
Did the solar tax credit expire?
Yes, the state solar incentives transitioned and is no longer available for new residential solar installations. This change affects homeowners installing solar systems from current onward.
What incentives replaced the state solar incentives?
While the state tax benefits transitioned, state solar incentives, utility rebates, net metering policies, and financing programs in Rhode Island, Connecticut, and Massachusetts continue to support solar adoption and reduce costs for homeowners.
Is solar still worth it without the state credit?
Yes, solar remains a financially smart investment due to strong state incentives, net metering benefits, declining solar costs, and rising electricity prices, which together maintain solar’s financial attractiveness.
Is solar still worth it in Rhode Island without the state credit?
Absolutely. Rhode Island’s state solar incentives, including the Renewable Energy Fund rebates and net metering policies, combined with declining solar costs, make solar a viable and cost-effective option even without the state solar incentives.
What is the best solar incentive in Massachusetts?
Massachusetts offers the SMART program, a performance-based incentive, combined with a state income tax credit of a percentage, making it one of the strongest solar incentive frameworks in the region.
How do I claim state solar incentives in Connecticut?
Homeowners can claim state solar incentives in Connecticut by applying through the Connecticut Green Bank’s Residential Solar Investment Program and coordinating with their utility providers for rebates and net metering credits. Early application is key to ensure eligibility.
Where can I learn more about state-specific solar incentives?
For detailed information, visit the following pages: Rhode Island Solar Incentives, Connecticut Solar Incentives, and Massachusetts Solar Incentives. You can also contact the Rhode Island Office of Energy Resources, Connecticut Green Bank, and Massachusetts Clean Energy Center (MassCEC) for authoritative guidance.
Explore Your Solar Savings
Homeowners interested in estimating their potential solar savings can use the Solar Savings Calculator to evaluate options tailored to their location and energy usage.
Conclusion
Even without the federal solar tax credit, homeowners in Rhode Island, Connecticut, and Massachusetts still benefit from strong state programs and utility incentives that keep solar a sound long-term investment. Combined with rising electricity rates and falling equipment costs, going solar in 2026 still pays off — the state incentives just do more of the lifting now. The best next step is a real, itemized quote based on your home and usage. Call Sunfinity Power at (401) 227-3363 or request a free Solar Savings Report.
