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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
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The federal residential solar tax credit is gone. The installer you choose in 2026 matters more than ever. We compared pricing, local expertise, REG program enrollment, REF rebate handling, and warranty coverage from five companies actively installing in Rhode Island.
The best solar companies in Rhode Island in 2026 are NuWatt Energy (best local installer), Sunrun (best for lease/PPA), and Trinity Solar (best budget option). With the federal residential ITC expired, choosing an installer who understands the REG program ($0.27/kWh for 15–20 years), the REF rebate ($0.65/W up to $5,000), and ConnectedSolutions battery incentives is critical for maximizing your savings.
We evaluated each installer on eight criteria that matter most for Rhode Island homeowners in the post-ITC landscape. Companies that understand RI-specific programs ranked higher because those programs now represent the largest financial incentives available to homeowners.
REG enrollment, REF rebate, ConnectedSolutions, Clean Heat RI
Clear per-watt pricing with dealer fees disclosed
Tier-1 panels, quality inverters, workmanship coverage
BBB rating, Google reviews, complaint patterns
Own crews vs subcontracted, local office presence
Cash, loan, lease/PPA availability and terms
Contract-to-PTO speed and permitting experience
Years in RI, number of local installations completed
Detailed profiles with honest pros and cons. We call out weaknesses for every company, including NuWatt, because you deserve an unbiased comparison.
Deep RI program expertise with in-house installation crews
2008, Chelmsford MA
$3.15–$3.35/W cash; competitive lease/PPA via Propel
MA, NH, CT, RI, ME, VT, NJ, PA, TX
Best for: Homeowners who want a local company with proven RI program expertise and hands-on support
Largest US residential solar company with strong financing options
2007, San Francisco CA
$3.50–$4.00/W cash equivalent; lease/PPA competitive
Nationwide (22+ states)
Best for: Homeowners prioritizing $0-down with a national brand backing
Aggressive pricing with a large Northeast footprint
1994, Wall Township NJ
$3.00–$3.25/W (often the lowest quoted price)
Northeast US (MA, CT, NJ, NY, PA, MD, DE, NH, RI)
Best for: Price-sensitive homeowners looking for the lowest upfront cost
RI-only focus with strong community ties and local knowledge
2014, Newport RI
$3.20–$3.50/W cash
Rhode Island only
Best for: Homeowners who want a small, RI-based installer with strong local references
Sleek ecosystem with Powerwall integration
2006, Palo Alto CA (solar division from SolarCity acquisition)
$2.80–$3.20/W (online pricing, often excludes complexity adders)
Nationwide
Best for: Tech enthusiasts who want the Tesla ecosystem and app experience
How the five companies stack up on the features that matter most in Rhode Island.
| Feature | NuWatt | Sunrun | Trinity | Newport | Tesla |
|---|---|---|---|---|---|
| Local Crews | Yes | No (subcontracted) | Mixed | Yes | No (subcontracted) |
| REG Program Expertise | Yes | Limited | Limited | Yes | No |
| REF Rebate Help | Yes | No | Limited | Yes | No |
| ConnectedSolutions Help | Yes | No | No | Limited | No |
| $0-Down Option | Yes (Propel) | Yes | Yes | No | Yes |
| Avg Price/Watt | $3.15–$3.35/W cash | $3.50–$4.00/W cash equivalent | $3.00–$3.25/W (often the lowest quoted price) | $3.20–$3.50/W cash | $2.80–$3.20/W (online pricing, often excludes complexity adders) |
| BBB Rating | A+ | A+ | A | A | B |
The solar landscape in Rhode Island shifted dramatically when the One Big Beautiful Bill Act let the Section 25D residential tax credit expire on December 31, 2025. Here is what that means for your installer decision.
The 30% federal tax credit for homeowner-owned solar (Section 25D) expired. There is no longer a $7,000–$10,000 credit to offset your upfront cost on cash or loan purchases. This makes every other savings lever—especially RI's REG and REF programs—more important than ever.
The REG program pays $0.27/kWh for 15–20 years. On a typical 8 kW system producing 9,600 kWh/yr, that is roughly $38,880–$51,840 over the program term. Many national installers do not properly enroll customers in REG, leaving tens of thousands of dollars on the table.
Battery owners enrolled in RI Energy's ConnectedSolutions earn up to $225/kW per summer season. A single Powerwall can generate $1,125+/yr. Enrollment requires installer cooperation—not all companies handle this process.
Under a lease or PPA, the third-party system owner (not the homeowner, not the installer) claims the Section 48/48E commercial ITC. This means $0-down options like NuWatt's Propel program now offer some of the best economics for homeowners who cannot claim the credit themselves.
Bottom Line
In 2025, you could choose almost any installer and still save money thanks to the 30% tax credit. In 2026, your installer's knowledge of RI programs—REG, REF, ConnectedSolutions—directly determines whether you leave tens of thousands of dollars in incentives unclaimed.
Protect yourself from bad deals. If you encounter any of these warning signs during the sales process, proceed with caution.
The residential solar tax credit (Section 25D) expired on December 31, 2025. Any installer still quoting 30% off is either uninformed or dishonest. The only way to access the ITC now is through a lease/PPA where the third-party owner claims Section 48/48E.
Dealer fees (also called origination fees) of 15–30% are baked into many solar loans. If an installer won't break out the dealer fee separately, you cannot accurately compare their loan price to a cash price or another company's quote.
The REG program ($0.27/kWh for 15–20 years) and REF rebate ($0.65/W up to $5,000) are the two most valuable RI-specific incentives for solar owners. An installer who does not proactively discuss these programs either lacks local expertise or does not handle enrollment—both are red flags.
Subcontracted crews have no direct accountability to the company that sold you the system. If something goes wrong, the finger-pointing begins. Ask whether the company employs its own installation crews.
Legitimate solar companies encourage you to get multiple quotes. A company that pressures you to sign immediately—especially by claiming a "limited-time discount"—is using a high-pressure sales tactic. Take time to compare and verify installer claims.
Accurate system design requires detailed roof analysis—orientation, pitch, shading, rafter spacing, and electrical panel capacity. A quote based solely on your electric bill is likely inaccurate and could lead to costly change orders.
City-specific guides with local pricing, utility rates, and installer recommendations.
NuWatt Energy is our top pick for Rhode Island in 2026 based on local crew usage, deep RI program expertise (REG enrollment, REF rebate filing, ConnectedSolutions), and competitive pricing. For homeowners who prefer $0-down, Sunrun offers strong lease/PPA options, while Trinity Solar provides the lowest upfront cost. Newport Solar is an excellent RI-only alternative with strong community ties.
Yes, solar remains a strong investment in RI in 2026 even without the Section 25D residential tax credit. Rhode Island has high electricity rates ($0.30/kWh from RI Energy), the REG program pays $0.27/kWh for 15–20 years, the REF rebate provides $0.65/W (up to $5,000), sales tax is 100% exempt on solar, and a 20-year property tax exemption protects your home value. Lease/PPA options let the third-party owner claim the Section 48/48E commercial ITC, passing savings through lower monthly payments. Typical payback is 8–11 years.
The Renewable Energy Growth (REG) program is Rhode Island’s most valuable solar incentive. It pays solar system owners a guaranteed rate of $0.27/kWh for 15–20 years through a performance-based incentive contract with RI Energy. The program opens annually on April 1 and fills quickly. An installer who understands the REG application process and timeline is critical—missing the enrollment window means waiting a full year for the next cycle.
The Rhode Island Renewable Energy Fund (REF) rebate provides $0.65/W for residential solar installations, capped at $5,000 per project, plus a $2,000 adder for battery storage. This rebate is administered by Commerce RI and is applied after system installation. Not all installers handle the REF paperwork—ask specifically whether your installer will file the REF application on your behalf.
The average cost of solar panels in Rhode Island in 2026 is approximately $3.10/W before incentives. For a typical 8 kW system, that is roughly $24,800 before the REF rebate. After the $5,000 REF rebate, your net cost drops to around $19,800. There is no longer a federal residential tax credit (Section 25D expired Dec 31, 2025), so state programs like REG and REF are the primary cost offsets. Cash prices range from $2.80/W (Tesla, with caveats) to $4.00/W (Sunrun).
ConnectedSolutions is a demand response program run by RI Energy that pays battery owners $225/kW per summer season for allowing brief dispatches during peak demand. For a 13.5 kWh Tesla Powerwall, that can mean roughly $1,125–$1,350 per year in income. Your installer matters because enrollment requires specific paperwork and inverter configuration—not all installers handle this process. Ask whether ConnectedSolutions enrollment is included in your solar-plus-battery quote.
Key questions for RI solar installers: (1) Will you enroll my system in the REG program? (2) Will you handle my REF rebate application? (3) Do you handle ConnectedSolutions battery enrollment? (4) Do you use your own crews or subcontractors? (5) What is the dealer fee on this loan? (6) What panel and inverter brands do you offer? (7) What is your workmanship warranty? (8) How long from contract to permission to operate? (9) Are you NABCEP certified? (10) Can I see local references in Rhode Island?
With the residential tax credit expired, leasing and PPAs have become more competitive in RI. Under a lease/PPA, the third-party system owner claims the Section 48/48E commercial ITC and passes savings to you through lower payments. Cash purchases still offer the highest total savings over 25 years but require $20,000–$25,000 upfront (after REF rebate). Loans remain an option but watch for dealer fees of 15–30%. The best choice depends on your budget, how long you plan to stay in your home, and whether you qualify for REG—which significantly improves cash-purchase economics.
Compare against any competitor. We show you the full breakdown including REG program income, REF rebate savings, ConnectedSolutions earnings, and honest cash vs. lease economics.
No high-pressure sales. No hidden dealer fees. Just transparent pricing from a local company with deep Rhode Island solar expertise.