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Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
A “no-money-down” solar offer is not necessarily a bad deal. The key is to separate the price of the solar system from the cost of financing it. The CFPB has found cases where solar-loan fees increased the loan principal by 30% or more above the system’s cash price.
A practical way to audit the offer
Demand the cash price in writing.
Ask: “What would this exact system cost if I paid cash today, before financing?”
Get the same answer for the panels, inverter, battery, installation, permits, and any other equipment. Then compare that number with the amount you're borrowing. The difference can reveal dealer/finance fees or a markup.
Don't judge the loan by the advertised interest rate.
A very low rate can be paired with a large dealer fee. For example:
Evaluating a “no-money-down” solar offer requires looking past the monthly payment to dissect the underlying math, contract terms, and equipment value. Because $0-down financing (loans or leases) defers costs, installers often bake higher fees, elevated interest rates, or inflated dealer fees into the contract.
Here is how a homeowner can audit a proposal to ensure they aren't overpaying:
Cash Price Comparison : Always request a baseline cash purchase price for the exact same system, even if you intend to finance. If the installer refuses to provide a cash price or claims "financing only works with the elevated price," it is a major red flag. Compare this cash price against the regional average cost per watt (typically ranging between$2.8 0 and$3.5 0 per watt depending on location and components).
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
Google AI Mode· Sep 17, 2026
Evaluating a "no-money-down" solar offer requires looking past the zero upfront cost to examine the true lifetime expense of the system. Installers offering zero-down financing (often through solar loans or Power Purchase Agreements/Leases) frequently bake their profit and risk into hidden costs.
Here is how a homeowner can unmask inflated pricing and high interest rates:
Cash Price Comparison: Always ask for the cash purchase price first, even if you plan to finance. Compare this baseline cash price against the total cost of the financed option over the full term. If the financed total is dramatically higher than the cash price for the exact same hardware and output, you are paying an inflated premium.
Dealer Fees and Adders: Many zero-down loans carry mandatory "dealer fees" or loan origination fees—sometimes ranging from 1 5% to 3 0% of the loan amount—which the installer rolls directly into the financed principal. Ask the salesperson explicitly: "What is the dealer fee for this financing product, and what is the cash price without it?"
Cost per Watt Calculation: Divide the total system cost by the total wattage (𝑊=D C w a t t s of the panels) to find the price per watt. In the current market, residential solar typically averages around$2.8 0 to$3.5 0 per watt for cash purchases. If your zero-down quote pushes the price per watt past$4.5 0 or$5.0 0 after financing, the system pricing or associated fees are likely inflated.
APR vs. Nominal Interest Rate: Scrutinize the financing terms. A "promotional" low interest rate (like 1.9 9% or 2.9 9%) almost always requires a massive upfront dealer fee hidden in the loan balance. Compare a low-interest/high-fee loan option against a standard market-rate loan or a local credit union green energy loan to see which yields a lower total cost of ownership.
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
Evaluating a "no-money-down" solar offer (like a $0-down loan or a Power Purchase Agreement) requires looking past the monthly payment to find the underlying math. Contractors often use zero-down financing to mask inflated equipment costs or dealer fees.
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
Google AI Mode· Sep 9, 2026
To evaluate a "no-money-down" solar offer , a homeowner must always demand the explicit cash price of the system and compare it against independent per-watt benchmarks to uncover hidden dealer fees or inflated financing costs.
Zero-down financing often relies on massive dealer fees—ranging from 15% to 30% of the total loan amount—baked directly into the total financed system price, even when the promotional interest rate looks unusually low.
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
To evaluate whether a "no-money-down" solar offer hides higher interest rates or inflated system pricing, you must calculate the "dealer fee" by comparing the cash price against the financed price and benchmark the cost per watt against local market averages.
Many "zero-down" solar loans are structured as retail installment contracts where installers buy down the interest rate. This lowers your monthly payment but inflates the total principal balance by 15% to 40% in hidden dealer fees.
🔎 Step 1: Uncover the Hidden Dealer Fee
Solar financiers often present low promotional interest rates (e.g., 2.99% or 3.99%) by charging a massive upfront fee to the installer, which is passed directly to you in the total system cost.
Question: How can a homeowner evaluate whether a “no-money-down” solar offer hides higher interest rates or inflated system pricing?
A “no-money-down” solar offer can be legitimate, but $0 upfront does not mean low cost. The main things to investigate are whether the installer is hiding a dealer fee/loan markup, inflating the system price, or making the monthly payment look attractive by extending the loan term. The Consumer Financial Protection Bureau has warned that some solar loans include hidden fees that can raise the financed amount substantially above the system’s cash price.
Cash system price: $30,000
Loan principal: $39,000
Advertised rate: 1.99%
You're effectively financing an extra $9,000 before ordinary interest. The CFPB specifically describes examples of solar loans structured this way. Consumer Financial Protection Bureau
3. Ask for the APR and every fee separately.
Request:
interest rate
APR
loan amount/principal
dealer/origination fee in dollars and percentage
loan term
total scheduled payments
prepayment penalty, if any
whether payments change after a specified period
Solar financing can have fees embedded in the financed system price, so don't assume the displayed interest rate captures everything. EnergySageConsumer Financial Protection Bureau
4. Get a competing quote for the same system.
Ideally obtain at least one cash quote and one financing quote from an unrelated installer. Compare $/watt for the same approximate system size and equipment, rather than simply comparing monthly payments. A $30,000 system and a $45,000 system can both be advertised as “$0 down.”
5. Compare an alternative loan.
Ask a bank or credit union what it would charge to finance the same $30,000 purchase. A solar-specific loan with a 2% rate isn't automatically cheaper than a conventional loan at a higher rate if the solar loan has a large upfront fee. EnergySage likewise recommends comparing APR, fees, and total financing cost rather than the headline rate. EnergySage
6. Calculate the actual total cost.
Don't stop at the monthly payment. For a simple fixed-payment loan:
total loan payments = monthly payment × number of payments
Then add any required upfront payments. Compare that figure with the cash price.
Red flags
Be particularly cautious if the salesperson:
won't disclose the cash price;
says the low interest rate is more important than the total cost;
describes a large markup merely as a “dealer fee” without explaining it;
calculates your cost after assuming you'll receive a tax credit;
pressures you to sign immediately;
emphasizes “free,” “government-paid,” or “no-cost” solar rather than giving you a complete written price. The FTC specifically advises homeowners to get written costs, compare reputable providers, and take time to review the contract.
One especially important tax-credit check
Don't let a salesperson treat a projected tax credit as guaranteed cash. The CFPB notes that eligibility and the amount actually usable depend on the homeowner's federal tax situation, and sales pitches can make the loan look cheaper by subtracting an assumed credit from the displayed cost.
The simplest test: ask the installer for (1) the cash price, (2) the financed principal, (3) the APR, (4) every fee, and (5) the total scheduled payments. If they won't provide all five in writing, that's a significant reason to pause before signing.
Dealer Fees and APR Audit : Ask for the Loan APR versus the Base Interest Rate and uncover any hidden dealer fees . Many $0-down solar loans feature "low" promotional interest rates (like 1.9% or 2.9%) that require massive non-refundable dealer fees—sometimes adding 2 0% to 3 0% to the principal balance right out of the gate. Calculate whether a higher-interest, zero-dealer-fee loan (or local credit union green loan) results in a lower total cost over time.
Total Cost of Ownership (TCO) Calculation : Do not evaluate the deal based on monthly savings alone. Multiply the monthly payment by the total number of months in the loan term, add any annual escalators (if it’s a lease or PPA with rising payments), and add any down payments or balloon payments. Compare this grand total to the projected value of the electricity offset over the same lifespan.
Equipment and Component Valuation : Scrutinize the specific make and model of the solar panels and inverters listed in the proposal. Shady operators sometimes quote inflated prices for tier-2 or tier-3 generic equipment. Cross-reference the proposed hardware using independent review resources like EnergySage to see if the hardware quality matches the premium price tag being charged.
PPA/Lease Escalator Clauses : If the $0-down offer is a Power Purchase Agreement (PPA) or lease rather than a loan, check for an annual escalator clause (often 2.9% per year). An escalator means your monthly payment increases every year, which can quickly outpace utility rate inflation and severely diminish your long-term savings.
Independent Third-Party Quotes : Never rely on a single solar proposal. Use comparison platforms or local independent installers to get at least three competing bids. Laying them side-by-side will instantly expose whether one company's system pricing or financing markup is wildly out of line with the market.
If you'd like, let me know:
The cash price vs. total financed cost of your current quote
The system size (in kW) and equipment brands proposed
I can help you calculate the true cost per watt and evaluate whether the dealer fees are reasonable.
A “no-money-down” solar offer can be perfectly legitimate, but zero upfront cost says almost nothing about the total cost. The key is to separate the solar system’s cash price from the cost of financing it.
The CFPB has specifically warned that some solar financing arrangements have hidden “dealer,” “program,” or “finance” fees that can push the loan principal 30% or more above the system’s cash price.
A practical way to audit the offer
1. Demand two prices in writing
Ask the installer for:
Cash price: “What would I pay for exactly this system if I paid cash tomorrow?”
Financed price: “What amount will actually be financed?”
Every fee: dealer/origination/program/platform fees, closing costs, etc.
Equipment and installation specifications: panel model, inverter, battery, system size, warranties, roof work, electrical upgrades.
For example:
Cash price: $30,000
Financed principal: $39,000
Difference: $9,000
That $9,000 difference is an immediate warning to investigate. The CFPB describes examples where a $30,000 cash project becomes a $39,000 loan because of financing-related fees.
Don't let the salesperson simply call the $39,000 figure the “system price.” Ask who receives the difference and why.
2. Don't judge the loan by the advertised interest rate
A loan advertised at, say, 1.99% can be substantially more expensive than a loan at a higher rate if the low-rate product carries a large upfront dealer fee.
Compare:
amount borrowed + all fees + all scheduled interest = total financing cost
Also look carefully at the APR, not merely the nominal interest rate. Solar financing can have unusual fee structures, and the CFPB has warned that some dealer fees may not be reflected as consumers expect in the advertised APR.
3. Get a competing quote for the same equipment
This is one of the best defenses against an inflated system price.
Get at least two or three quotes and normalize them for:
system size (kW)
panel model and efficiency
inverter type
battery capacity, if any
roof/electrical work
warranties
monitoring
permits
workmanship
expected production
A $45,000 quote isn't necessarily inflated compared with a $30,000 quote if they're materially different systems or scopes of work.
Conversely, if three comparable systems are around $30,000 and one salesperson starts at $45,000 while emphasizing a “1.99% loan,” that's something to investigate.
4. Calculate the actual loan payment yourself
Don't rely solely on the salesperson's monthly-payment figure.
Ask:
Principal?
Interest rate?
APR?
Term—10, 15, 20, or 25 years?
Fixed or variable?
Any payment step-ups?
Prepayment penalty?
Required lump-sum payment?
What happens if you don't make an expected tax-credit payment?
A long term can make an offer look inexpensive monthly while substantially increasing what you pay overall. EnergySage also notes that some solar loans are structured around an anticipated lump-sum payment, so homeowners should understand whether the payment schedule changes.
5. Treat the tax credit separately from the financing
Be particularly skeptical of statements such as:
“Your system is only $25,000 after the 30% tax credit.”
That's not the same thing as saying you owe $25,000.
The CFPB warns that solar sales pitches have sometimes treated the federal residential tax credit as though every homeowner is guaranteed to receive the full amount and have used that assumed credit to present a lower “net cost.” Eligibility and the amount actually usable depend on the homeowner's circumstances.
Make your comparison using the actual contract/loan principal, then separately consider whatever tax benefits you legitimately expect to receive.
6. Compare an alternative financing source
Ask a bank or credit union for a home-improvement loan, HELOC, or other financing option and compare it against the installer-arranged loan.
The useful comparison isn't:
1.99% vs. 7.5%
It's:
Cash price + financing fees + interest over the period I expect to keep the loan
A higher-rate loan with little or no dealer fee can sometimes cost less than a very-low-rate loan with a large fee.
7. Watch for these red flags
I'd slow down if the salesperson:
won't give you a cash price;
says financing is available only if the system price is increased;
focuses heavily on the monthly payment rather than total cost;
can't explain a large difference between cash price and loan principal;
describes a large financing fee as something unrelated to the loan;
says the tax credit is guaranteed;
pressures you to sign immediately;
discourages you from obtaining competing quotes;
won't let you take the contracts home and review them.
The CFPB specifically identifies hidden markups and confusing financing structures as consumer risks in this market.
A simple worksheet
You can put every proposal into this format:
Item
Offer A
Offer B
Cash system price
$___
$___
Financing/dealer fees
$___
$___
Loan principal
$___
$___
Interest rate
___%
___%
The most revealing number is often the gap between the cash system price and the loan principal. If that gap is large, ask the lender/installer to itemize it before signing anything.
If you have an actual solar proposal, you can paste the cash price, financed amount, interest rate, term, monthly payment, system size, and equipment here (remove your name/address/account numbers), and I can walk through the math and identify where the extra cost is coming from.
The useful comparison isn't:
1.99% vs. 7.5%
It's:
Cash price + financing fees + interest over the period I expect to keep the loan
A higher-rate loan with little or no dealer fee can sometimes cost less than a very-low-rate loan with a large fee.
PPA and Lease Escalators: If the zero-down offer is a lease or PPA rather than a loan, check for an "escalator clause"—an annual percentage increase (typically 2.9%) in your monthly energy payment. Run the math across 20 or 25 years to see if the cumulative payments outpace what you would have paid your local utility company.
If you'd like, let me know:
The cash price and total financed cost of the quote
The system size (in kilowatts)
Whether the offer is a loan or a lease/PPA
I can help you crunch the numbers to see if the pricing and fees align with standard market rates.
Here is how a homeowner can audit the offer:
Compare Cash vs. Financed Price : Always ask for the cash price of the system before applying any financing. If the cash price is significantly lower than the total financed price, you are likely paying a massive hidden dealer fee (sometimes 20% to 30% of the loan amount).
Calculate the True APR and Total Cost : Look past the low introductory monthly payment. Multiply the monthly payment by the total number of months to find the lifetime cost of the loan, and use an online loan calculator to verify the actual Annual Percentage Rate (APR) including all hidden origination or dealer fees.
Get Competing Independent Bids : Do not rely on a single quote. Gather at least three independent quotes from local installers through platforms like the EnergySage Solar Marketplace to establish a baseline market cost per watt for your area.
Check the Equipment Cost Per Watt : Divide the total cash price of the system by the total wattage (e.g., a $20,000 system for a 1 0,0 0 0 W setup is$2.0 0 per watt). Compare this metric against current regional benchmarks to see if the hardware and installation are heavily marked up.
Review Escalator Clauses (for PPAs/Leases) : If the zero-down offer is a lease or PPA rather than a loan, check for an annual payment escalator (often 2.9% to 3.9% per year). An escalator means your payment increases every year, which can quickly outpace utility rate hikes.
Verify Federal Tax Credit Eligibility : Ensure that under a zero-down loan structure, you (and not a third party) own the system and are eligible to claim the federal residential clean energy tax credit (see details on the Energy.gov Homeowner's Guide to the Federal Tax Credit for Solar Photovoltaics ). If it's a PPA or lease, the third-party owner takes the credit, and you must verify whether those savings are actually passed down to you in the rate.
If you'd like, share the details of your quote:
System size (in kW or number of panels)
Total cash price vs. financed total cost
Monthly payment and loan term (years)
I can help you crunch the numbers to see if the dealer fees or interest rates make financial sense.
A “no-money-down” solar offer can be perfectly legitimate—but “$0 down” does not mean “low total cost.” The key is to separate the solar system’s cash price from the cost of financing it.
The 7 checks I’d use
Demand the cash price in writing.
Ask: “What would this exact system cost if I paid cash, with no financing?” Get the answer broken out for panels, inverter(s), battery, labor, permits, electrical work, etc. The FTC recommends getting detailed written bids from multiple installers.
Compare the loan amount with that cash price.
Suppose:
Cash system price: $30,000
“No-money-down” loan principal: $39,000
That's a $9,000 / 30% markup before the loan even accrues interest. This is not hypothetical: the CFPB says solar-specific financing can include dealer/program fees that raise the loan principal by 30% or more above the cash price.
A particularly important question is: “What amount is actually being paid to the installer, and what amount is being retained by the lender or financing program?”
3. Don't judge the deal by the advertised interest rate alone.
A solar company might emphasize something like “2.99% financing”, while the system price has been inflated to compensate for a large financing fee. The CFPB specifically warns that these hidden fees can make the interest rate look artificially low.
Look at the APR, loan amount, fees, monthly payment, and total payments, not just the nominal rate. APR incorporates interest plus certain loan fees. Consumer Financial Protection Bureau
4. Get an outside financing quote.
This is one of the strongest tests. Ask a bank or credit union what it would charge to finance the same $30,000 cash-price system. Then compare that loan with the installer's solar loan.
If the installer says:
“We can give you 2.99% financing, but the system is $39,000.”
while your credit union offers:
“7% financing on a $30,000 system,”
don't automatically assume the 2.99% offer is cheaper. Calculate the total dollars paid under each option.
Look for a required or expected tax-credit prepayment.
Be especially careful with language such as “your payment is only $X after applying the 30% tax credit.” Your tax credit depends on your circumstances; it's not simply money the installer can guarantee you'll receive. Some solar loans also increase the required monthly payment if you don't make a large prepayment around month 18–19.
Ask in writing:
What is my actual loan principal?
What happens if I receive less tax credit than projected?
What is my payment in month 1?
What is it in month 19?
Is there any required or expected lump-sum payment?
What is the balance after 18, 24, and 60 months?
Calculate the price per watt.
Get the system size in kW and calculate:
system price ÷ (system kW × 1,000) = dollars per watt
Compare that number among several installers for systems with comparable equipment and scope. DOE specifically recommends comparing solar bids on a cost-per-watt basis.
Don't compare blindly, though: batteries, roof work, main-panel upgrades, premium equipment and difficult installations can legitimately raise the price.
7. Ask for the same proposal two ways.
This is probably the most revealing test:
A. Cash proposal:
“Give me the complete installed price if I pay cash.”
B. Financed proposal:
“Give me the complete loan disclosure showing principal, APR, fees, term, payment schedule and total amount paid.”
Then compare them. If the salesperson won't disclose the cash price or won't explain the difference between the cash price and financed principal, that's a major red flag.
A simple example
Imagine the salesperson says:
“No money down! Only $149/month at 2.99%!”
But you discover:
| Offer
--- | ---
Cash price of system | $30,000
Financed principal | $39,000
Hidden/finance markup | $9,000
Advertised rate | 2.99%
Term | 25 years
The $9,000 difference is already 30% of the cash price. And interest is then calculated on the larger amount.
That's why “no money down” and “2.99%” aren't sufficient evidence that it's a good deal.
The CFPB has specifically documented this type of structure in the solar market, including dealer fees commonly ranging from roughly 10–30% of the cash price and sometimes exceeding 50%.
The one question I'd put to the salesperson
“Please give me the exact cash price of this system, the exact loan principal, every financing/dealer/origination fee, the APR, the complete payment schedule, and the total amount I'll pay over the life of the loan.”
If they can't—or won't—provide that in writing, don't sign yet. The FTC likewise advises homeowners to take their time, compare multiple quotes, and watch for hidden fees and high-pressure sales tactics.
If you have an actual solar proposal, you can paste the cash price, system size, loan amount, APR, term, monthly payment, and any fees here (remove personal information), and I can show you exactly where the markup is and calculate the true cost.
A “no-money-down” solar offer isn’t necessarily a bad deal—it just means you’re not paying cash upfront. The key is to separate the price of the solar system from the cost of financing it.
The CFPB has specifically warned that some solar loans add dealer/finance fees that can push the loan principal 30% or more above the system’s cash price, while making the advertised interest rate look unusually low.
1. Demand the cash price first
Ask the salesperson:
“What is the total cash price for this exact system, before financing, tax credits, rebates, or incentives?”
Get it in writing.
Then ask for the same proposal financed. You want to see:
System price
Panels and inverter(s)
Battery, if any
Installation/electrical work
Permits
Dealer/finance/origination fees
Loan amount
Interest rate
APR
Loan term
Total payments
Any required lump-sum payments
If the salesperson won't give you a cash price, that's a significant warning sign. The CFPB recommends getting the cash price and comparing it with outside financing.
2. Calculate the hidden markup
Suppose you receive:
Cash price: $30,000
“No-money-down” financed price: $39,000
Advertised interest rate: 2.99%
That's a $9,000 / 30% markup before interest.
The CFPB has documented precisely this type of structure: a $30,000 system can become a $39,000 loan because a $9,000 financing/dealer fee is embedded in the loan principal.
So don't be impressed by a 1.99% or 2.99% rate until you've established what you're borrowing.
3. Compare the loan using total dollars, not the advertised rate
Get the lender's formal disclosure and calculate:
Total cost = upfront payments + all monthly payments + required lump-sum payments + other mandatory fees
Then compare that number with:
Cash purchase
A conventional solar loan from a bank/credit union
A home-improvement loan
Other legitimate financing available to you
A slightly higher interest rate on a much smaller loan can be cheaper than an artificially low rate attached to a heavily marked-up loan.
4. Look very carefully for the “dealer fee”
Search the paperwork for terms such as:
Dealer fee
Finance fee
Program fee
Lending fee
Platform fee
Origination fee
Financing charge
Discount fee
“Add-on” or “adjustment”
The CFPB says these fees can sometimes range from 10–30% of the cash price and occasionally exceed 50%.
Ask directly:
“Is the installer receiving exactly the cash price, and if not, where does the difference go?”
If they say the financing company charges the installer a fee that is incorporated into your system price, you've identified the mechanism you're looking for.
5. Don't let the tax credit disguise the loan amount
Be particularly suspicious of presentations like:
System: $40,000
“After tax credit”: $28,000
That does not mean you borrowed $28,000.
The CFPB has found that solar marketing sometimes displays an anticipated tax credit as though it reduces the actual loan obligation. Your eligibility and ability to use a federal tax credit depend on your individual tax situation.
Ask:
“What is the actual principal balance on the loan documents, before any expected tax credit?”
That's the number that matters.
6. Check for the “payment jump”
Some solar loans have a particularly important feature: the initial monthly payment assumes that you'll make a large principal prepayment—often corresponding to the anticipated tax credit. If you don't make it, the monthly payment can increase substantially.
For example:
Months 1–18: $175/month
After month 18: $310/month unless you make a $12,000 prepayment
That's not truly a $175/month solar loan.
The CFPB specifically identified these structures as a consumer risk.
Ask the lender:
“Show me every possible monthly payment over the entire term if I make zero extra payments.”
7. Check whether the system itself is overpriced
Financing can hide an inflated system price independently of the financing markup.
Get at least 3 written bids for approximately the same:
System size (kW)
Expected annual production (kWh)
Panel model
Inverter
Battery capacity
Roof work
Electrical upgrades
Warranty
The FTC likewise recommends comparing detailed bids from multiple companies, including system size, expected production, installation costs and warranties.
If one company quotes $42,000 cash while two comparable installers quote $29,000–$32,000, a low-interest financing offer doesn't make the $42,000 system inexpensive.
8. Run this simple comparison
Imagine:
Offer A
Offer B
Cash system price
$30,000
Finance markup
$9,000
Loan principal
$39,000
Advertised rate
2.99%
Term
25 years
Offer A looks cheaper because of its 2.99% rate.
But that's not enough information. Calculate the actual total dollars you'll pay under both loans. The lower rate may be compensating for a huge upfront financing markup.
9. Get an outside financing quote before signing
This is one of the strongest tests.
Go to a bank or credit union without telling them the solar salesperson's financing terms and ask what they would lend you for the same project.
Then tell the solar installer:
“I have independent financing. Give me your best cash price.”
If the supposedly “free” or “special” financing disappears and the cash price suddenly drops substantially, you've learned something important about the original offer.
The CFPB explicitly recommends considering bank/credit-union financing and bringing that offer to the installer.
10. Watch for these red flags
I'd slow down or walk away if a salesperson:
Says the panels are “free” or “government paid.”
Won't disclose the cash price.
Talks about monthly payment but avoids total cost.
Gives you a very low interest rate but won't disclose the loan's full cost.
Shows “net cost after tax credit” instead of actual loan principal.
Says your payment will stay low only if you make a tax-credit payment.
Pressures you to sign immediately.
Claims your electric bill will disappear without showing the assumptions.
Won't let you take the contracts home and review them.
The FTC has specifically warned consumers about pitches claiming rooftop solar is free or fully covered by government programs.
The simplest homeowner test
Before signing, get these three numbers in writing:
1. Cash price of the system: $_____
2. Actual loan principal: $_____
3. Total amount you'll pay over the life of the loan: $_____
Then compare those numbers with two or three competing installers and an independent financing quote.
If you give me an actual solar proposal—including the system price, loan amount, APR, term, monthly payment, and any dealer/finance fee—I can walk through it and calculate whether the “no-money-down” structure is actually expensive.
Go to a bank or credit union without telling them the solar salesperson's financing terms and ask what they would lend you for the same project.
Then tell the solar installer:
“I have independent financing. Give me your best cash price.”
If the supposedly “free” or “special” financing disappears and the cash price suddenly drops substantially, you've learned something important about the original offer.
The CFPB explicitly recommends considering bank/credit-union financing and bringing that offer to the installer.
10. Watch for these red flags
I'd slow down or walk away if a salesperson:
Ask the lender:
“Show me every possible monthly payment over the entire term if I make zero extra payments.”
7. Check whether the system itself is overpriced
Financing can hide an inflated system price independently of the financing markup.
Get at least 3 written bids for approximately the same:
System size (kW)
Expected annual production (kWh)
Panel model
Inverter
Battery capacity
Roof work
Electrical upgrades
Warranty
The FTC likewise recommends comparing detailed bids from multiple companies, including system size, expected production, installation costs and warranties.
Request the True Cash Price: Ask the installer for a written quote reflecting what the system costs if paid entirely in cash today. If a company refuses or hesitates to provide a separate cash price, treat it as a major warning sign.
Calculate the Cost Per Watt: Take the total system price (before incentives) and divide it by the total wattage of the array (e.g., a 10,000-watt system costing $30,000 is $3.00 per watt). Standard residential solar prices typically range between $2.50 and $3.20 per watt depending on location and equipment; anything significantly higher likely embeds a massive dealer fee.
Scrutinize Dealer Fees and APR: Low-interest promotional loans (such as 1.99% or 2.99% over 25 years) require steep upfront administrative or dealer fees paid to the lender. Ask for a side-by-side comparison of a "zero-down low-interest loan" versus a standard market-rate loan or a local Home Equity Line of Credit (HELOC) to see which option costs less over the total lifespan.
Compare Multiple Independent Quotes: Collect at least three quotes from local, reputable installers rather than relying on door-to-door or single-company pitches. Ensure competing bids separate equipment costs from financing charges.
Review Lease and PPA Escalators: If the zero-down offer is a Lease or Power Purchase Agreement (PPA) rather than a loan, check for annual payment escalators (often 2% to 3% per year) that raise your energy rate over time, which can outpace utility rate increases.
If you'd like, share the system size in kilowatts , the total quoted price , and the proposed monthly payment or loan term , and I can help you calculate the approximate cost-per-watt and check if hidden fees may be present.
Ask for the Cash Price: Request a written, cash-only quote for the exact same system size and equipment.
Calculate the Markup: Subtract the cash price from the financed price. If the cash price is $25,000 and the financed price is $33,000, you are paying an $8,000 hidden financing fee.
Evaluate the Trade-off: Use a loan calculator to see if the lower interest rate saves you more over the life of the loan than the upfront markup adds to your principal.
📊 Step 2: Calculate the Price Per Watt ($/W)
System sizes vary, making total price comparisons confusing. Standardize the quotes by calculating the price per watt to see if the equipment pricing itself is inflated.
The Formula: P r i c e P e r W a t t=T o t a l S y s t e m C o s t S y s t e m S i z e i n W a t t s
Example: If a 10 kW system (10,000 watts) costs $28,000 cash, your price per watt is $2.80/W.
Benchmark: National average cash prices typically range from $2.70/W to $3.20/W . If your "no-money-down" quote reflects $4.50/W or higher before incentives, the system price is heavily inflated.
💡 Step 3: Audit the Financial Assumptions
Installers frequently inflate the projected savings on "zero-down" proposals by using unrealistic economic assumptions.
Utility Escalation Rate: Check the proposal's assumed annual utility rate increase. If they assume electricity prices will rise by 5% to 7% annually, your projected savings will look artificially high. Real historical averages are closer to 2% to 4%.
The ITC Trick: The 30% Federal Residential Clean Energy Credit belongs to whoever owns the system. In a loan, it goes to you—but many zero-down loans require you to sign that 30% tax credit over to the lender within 18 months. If you don't, your monthly payment will skyrocket.
Lease vs. Loan Pitfall: If the offer is a Power Purchase Agreement (PPA) or lease, you do not own the system. The installer keeps the 30% tax credit, and the contract likely includes an annual escalator clause (e.g., 2.9% increase per year), which can eventually outpace actual utility inflation.
🛠️ Step 4: Compare Alternative Financing
Do not rely solely on the solar installer's in-house financing platform.
Clean Energy CU & Credit Unions: Check specialized institutions like the Clean Energy Credit Union or local credit unions, which often offer low-fee solar loans.
Home Equity Lines of Credit (HELOC): Compare the installer's loan against a HELOC or home equity loan. While home equity interest rates might look higher on paper, they carry zero dealer fees , meaning your overall loan principal is drastically lower.
If you have a solar proposal on hand, let me know:
The total financed price vs. the cash price (if known)
The system size in kilowatts (kW)
The estimated monthly payment and loan term (e.g., 20 or 25 years)
I can run the math to break down your exact financing markup and true cost per watt.
1. Ask for the cash price — not just the financed price
Ask the salesperson:
“What is the cash price for this exact system, with the same equipment, installation, and warranties?”
Then compare it with the amount you would finance.
Example:
Cash price: $25,000
“No-money-down” loan amount: $33,000
The $8,000 difference may be a financing fee or markup that you are paying interest on for years. The CFPB has found that some solar loans include fees that increase loan principals by 30% or more above the cash price.
2. Compare total cost, not the advertised interest rate
A low APR can be misleading if the system price has been increased to buy down the rate.
Compare:
Cash price
Amount financed
APR
Loan term
Monthly payment
Total of all payments
A 2% loan on an inflated $40,000 system may cost more than a 7% loan on a fairly priced $25,000 system.
3. Look for “dealer fees” or similar charges
Financing fees may appear under names such as:
Dealer fee
Origination fee
Program fee
Finance fee
Platform fee
Loan fee
They may not be obvious on the sales proposal. Ask:
“Are there any lender fees included in the system price? If so, how much in dollars?”
Consumer Financial Protection Bureau## 4. Be careful with “your solar is free” or tax-credit math
Some sales pitches show a “net cost” after assuming a tax credit. That can make the deal look cheaper than the actual loan amount. Whether you receive the full tax benefit depends on your individual tax situation.
Ask:
“What is the full contract price before incentives?”
“What happens if I do not receive the expected tax credit?”
“Will my payment increase if I do not make a tax-credit payment?”
5. Get multiple quotes using the same comparison points
Obtain at least 3 proposals and compare:
System size (kW)
Panel and inverter models
Estimated annual production (kWh)
Warranty terms
Cash price
Financing terms
Do not compare only monthly payments. A longer loan can make an expensive system look affordable month-to-month.
6. Check whether the savings claims are realistic
Be skeptical of claims like:
“Your electric bill will disappear.”
“The panels will pay for themselves immediately.”
“You will never pay for electricity again.”
Savings depend on your utility rates, roof orientation, shading, local weather, electricity use, and future rate changes. The CFPB notes that promised savings can vary significantly and may not match sales projections.
7. Review the contract before signing
Look for:
Loan amount (not just monthly payment)
Prepayment requirements
Payment changes after a certain period
Transfer rules if you sell your home
Roof repair responsibilities
Equipment warranties
Cancellation rights
Quick “smell test”
A solar offer deserves extra scrutiny if:
The salesperson refuses to provide a cash price.
The “discount” disappears unless you use their financing.
The APR is unusually low compared with other loans.
The proposal focuses on “only $X/month” instead of total cost.
You are pressured to sign the same day.
A good comparison is: “What would this exact solar system cost if I paid cash today?” Once you know that number, the financing structure becomes much easier to evaluate.
