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Before you sign a solar contract in Rhode Island, verify these 5 critical items. RI has unique programs (REG, REF) and rules (80% net metering) that many companies get wrong.
5
Critical Checks
$0 ITC
25D Expired 2025
crb.ri.gov
Verify License

Getting solar quotes in Rhode Island? The smallest state has some of the most complex solar incentives in New England. Between the REG program, REF rebates, 80% net metering, and the expired federal tax credit, there are multiple opportunities for mistakes — or deliberate misrepresentation — in your quote.
This checklist covers the five items that separate a honest, competitive RI solar quote from one that will cost you thousands. Print it, bring it to every consultation, and do not sign anything until every item checks out.
Federal Tax Credit Is Gone
Section 25D expired December 31, 2025. If any quote shows a 30% federal tax credit for your cash or loan purchase, that company is either uninformed or deceiving you. The only remaining federal credit applies to PPA/lease providers (Section 48/48E), not to homeowners directly.
Compare apples to apples across every quote
Price per watt is the universal solar metric. Divide total system cost by total watts (e.g., $23,200 / 8,000W = $2.90/W). This lets you compare quotes regardless of system size. Beware quotes that only show monthly payments — they obscure the true cost and may hide inflated prices or unfavorable loan terms.
RI-Specific Detail
Rhode Island solar costs $2.78-$3.15/W installed in 2026 depending on your town. Coastal towns (Newport, Narragansett, Westerly) run $0.10-$0.30/W higher due to salt-air-rated equipment. The 7% state sales tax exemption on solar equipment and labor should be reflected in every legitimate quote.
The $5,000 rebate that can make or break your ROI
For a typical 8 kW system: 8,000W x $0.65/W = $5,200, but the cap is $5,000. So you receive $5,000 from REF. With a qualifying battery, add $2,000 for a total of $7,000. If a company quotes you more than these amounts in REF rebates, they are inflating numbers. If they do not mention REF at all, ask why — you could be missing $5,000-$7,000 in savings.
RI-Specific Detail
The Rhode Island Renewable Energy Fund (REF) is administered by Commerce RI, not by your installer or RI Energy. The rebate is $0.65/W, capped at $5,000 for residential solar (plus $2,000 for a qualifying battery). REF operates through periodic grant rounds: spring (March-April), summer (June-July), and fall (September-October). Funding can be exhausted mid-round. A good installer will time your project to coincide with an open REF round and confirm availability before including it in your financial projection.
The choice that affects your income for 15+ years
If your quote shows REG: verify the $0.2723/kWh PY2026 rate and the 15-year term are explicitly stated. Understand that after year 15, you transition to net metering at whatever rate applies then. If your quote shows net metering: verify 80% of retail (not 1:1) and the 125% annual generation cap. Whichever option they recommend, they should explain why it is better for your specific situation.
RI-Specific Detail
This is the most important RI-specific item. REG and net metering are mutually exclusive during the 15-year REG term. REG pays $0.2723/kWh fixed; net metering credits about $0.232/kWh (80% of $0.29). REG is generally better for financial certainty and faster payback, but requires applying during the annual enrollment window (opens April 1). A legitimate installer explains both options and helps you choose based on your situation. Any company showing both REG income and net metering savings simultaneously is fabricating numbers.
Legal protection you cannot skip in Rhode Island
Beyond the basic license check: verify the company has been in business for at least 3 years, has completed installations in Rhode Island (not just neighboring states), and carries adequate insurance. Ask for local references. Check their Better Business Bureau rating and search the RI Attorney General's consumer complaint database. A company that resists providing this information is a company you should not hire.
RI-Specific Detail
Rhode Island requires solar installers to hold a valid contractor license from the RI Contractors' Registration and Licensing Board (CRB). You can verify any license at crb.ri.gov or by calling 401-222-1268. Companies without a valid RI license are operating illegally. Additionally, if anything goes wrong on your roof, an unlicensed contractor leaves you with no legal recourse through the CRB complaint process. Always verify before signing.
The fine print that can destroy your savings
Request the full contract for review before signing. A legitimate company will give you time to review with your attorney or financial advisor. If they pressure you to sign on the spot — especially at your door — that is a red flag. Rhode Island law requires a 3-day cooling-off period for door-to-door sales. If a company asks you to waive this right, walk away and report them to the RI Attorney General.
RI-Specific Detail
In Rhode Island, watch for: interconnection fees (RI Energy charges a nominal fee for grid connection), monitoring subscriptions ($10-$20/month if not included free), and permit expediting fees. For leases and PPAs, the escalator clause is critical. At RI Energy's $0.29/kWh rate, a PPA starting at $0.15/kWh with a 2.9% annual escalator reaches $0.30/kWh by year 24 — exceeding your current utility rate. RI law (Home Solicitation Sales Act, RI General Laws 6-28) gives you a 3-business-day cancellation right on door-to-door contracts.
Here is how three hypothetical RI solar quotes compare using our checklist. Can you spot the red flags?
| Item | Quote A | Quote B | Quote C |
|---|---|---|---|
| System Size | 8 kW | 8 kW | 9 kW |
| Price/Watt | $2.92 | $2.65 | $3.40 |
| Total Cost | $23,360 | $21,200 | $30,600 |
| REF Included? | Yes | No | Yes |
| REG or NM? | REG ($0.2723/kWh) | Shows both REG + NM | NM at 1:1 retail |
| Escalator | N/A (cash purchase) | N/A (cash purchase) | 2.9%/year PPA |
| Licensed? | Yes | Yes | No |
| Verdict | Transparent and competitive. Cash price with REF and REG properly accounted for. | Red flags: suspiciously low price and projections show REG + NM simultaneously. | Red flags: price too high, NM at 1:1 (should be 80%), no RI license, escalator clause. |
Normal $/W Range
$2.78-$3.15
Inland vs coastal
REF Rebate
$0.65/W (max $5K)
+$2K with battery
REG Rate
$0.2723/kWh
15 years fixed
Net Metering
80% of retail
~$0.232/kWh at current rates
Sales Tax Exemption
7%
Equipment + labor + batteries
Property Tax Exemption
20 years
On added home value
Federal Tax Credit
$0
25D expired Dec 2025
License Verification
crb.ri.gov
Or call 401-222-1268
Price per watt. This single number lets you compare any two quotes regardless of system size. In Rhode Island, expect $2.78-$3.15/W installed in 2026. Divide total system cost by total watts. Then check: Is the REF rebate ($0.65/W, max $5,000) included? Are they using REG or net metering in projections? Is there an active RI contractor license?
Visit crb.ri.gov (RI Contractors' Registration and Licensing Board) and search by company name or license number. You can also call 401-222-1268. Every solar installer in RI must hold a valid CRB license. Companies claiming exemption from this requirement are operating illegally. Also check the RI Attorney General's consumer complaint database for any history of complaints.
Yes. Any competent RI solar installer should address the REF rebate in your quote. The rebate is $0.65/W, capped at $5,000 for residential solar (plus $2,000 for battery storage). However, confirm they have checked current REF funding availability — the program operates through periodic grant rounds that can be exhausted. If a company quotes more than $5,000 in REF rebates (or $7,000 with battery), they are inflating numbers.
Look at the financial projections section. If it shows a fixed $/kWh payment rate ($0.2723/kWh), it is using REG. If it shows credits based on utility rate offsets, it is using net metering. The critical check: make sure REG and net metering are NOT shown simultaneously. They are mutually exclusive during the 15-year REG term. Also verify net metering uses 80% retail (not 1:1) for new installations.
For a cash purchase in 2026, expect $2.78-$3.15/W installed depending on your town, system size, and equipment tier. Inland towns average $2.78-$2.92/W while coastal towns average $2.90-$3.15/W due to salt-air-rated equipment. Systems under 7 kW may cost $0.10-$0.20/W more per watt than larger systems. The 7% RI sales tax exemption should be reflected in the final price.
No. The Section 25D residential solar tax credit expired December 31, 2025. Any RI company advertising a 30% federal tax credit for homeowner purchases in 2026 is either uninformed or deliberately misleading. The only remaining federal credit is Section 48/48E for commercial and third-party system owners (PPA/lease companies). In a PPA/lease, the company claims the credit and passes savings to you as a lower rate — but YOU do not claim 30% on your taxes.
Common hidden fees in RI solar contracts include: interconnection fees ($50-$200 for RI Energy grid connection), monitoring subscriptions ($10-$20/month if not included free), permit expediting charges, critter guards and trim packages not in the base quote, and loan origination fees (1-5% of loan amount). For leases/PPAs, the annual escalator clause can dramatically increase payments over 20-25 years.