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See estimated Propel monthly payments by system size and credit tier. Includes ITC savings breakdown and side-by-side comparison with traditional loan payments. All estimates based on published Concert Finance rates and current Silfab pricing.
Quick Answer
Propel solar monthly payments range from approximately $140/month (6 kW, excellent credit) to $340/month (12 kW, good credit). For the most common scenario — an 8 kW system at 8.99% APR — expect approximately $210-$255/month. Propel's 30% ITC capture reduces the effective cost by $5,850-$10,080 depending on system size, making payments 30-40% lower than they would be without the tax credit. All payments are fixed for 25 years with no escalator and no dealer fees.
Propel pricing has three components: the gross system cost, the ITC reduction (captured by the third-party owner), and your financed amount. Your monthly payment is determined by the financed amount and your APR, which depends on your credit tier.
Unlike a traditional loan where you finance the full system cost, Propel's structure means the ITC savings are pre-built into the loan terms. You do not receive a separate rebate or check — the 30% ITC captured by the third-party owner under Section 48E is reflected in the lower effective cost of your loan.
Gross Cost
System size x $/W
ITC Reduction
30-40% captured
Your APR
7.79%-9.79%
Monthly Payment
Fixed for 25 years
Important note on how to read these tables
The “gross cost” is what the system would cost without Propel. The “Propel monthly” is your actual estimated payment — it already reflects the ITC benefit built into the loan structure. The “traditional loan” column shows what you would pay monthly for the same system using a standard 5.99% APR loan without any ITC. The comparison column shows Propel's payment reduction vs a traditional loan.
Based on Maine Silfab pricing (CMP/Versant territories). Estimates do not include the 0.50% ACH discount.
Gross Cost
$19,500
30% ITC Value
$5,850
40% ITC Value (w/ FEOC)
$7,800
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $148/mo | $126/mo | +17% |
| Very Good | 720-759 | 8.79% | $161/mo | $126/mo | +28% |
| Standard | 700-719 | 8.99% | $164/mo | $126/mo | +30% |
| Good | 660-699 | 9.79% | $174/mo | $126/mo | +38% |
Based on $3.25/W Silfab pricing in Maine. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC (Section 25D expired).
Gross Cost
$24,960
30% ITC Value
$7,488
40% ITC Value (w/ FEOC)
$9,984
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $189/mo | $161/mo | +17% |
| Very Good | 720-759 | 8.79% | $206/mo | $161/mo | +28% |
| Standard | 700-719 | 8.99% | $209/mo | $161/mo | +30% |
| Good | 660-699 | 9.79% | $223/mo | $161/mo | +39% |
Based on $3.12/W Silfab pricing in Maine. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC (Section 25D expired).
Gross Cost
$30,000
30% ITC Value
$9,000
40% ITC Value (w/ FEOC)
$12,000
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $227/mo | $193/mo | +18% |
| Very Good | 720-759 | 8.79% | $247/mo | $193/mo | +28% |
| Standard | 700-719 | 8.99% | $252/mo | $193/mo | +31% |
| Good | 660-699 | 9.79% | $268/mo | $193/mo | +39% |
Based on $3/W Silfab pricing in Maine. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC (Section 25D expired).
Gross Cost
$35,040
30% ITC Value
$10,512
40% ITC Value (w/ FEOC)
$14,016
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $266/mo | $226/mo | +18% |
| Very Good | 720-759 | 8.79% | $289/mo | $226/mo | +28% |
| Standard | 700-719 | 8.99% | $294/mo | $226/mo | +30% |
| Good | 660-699 | 9.79% | $313/mo | $226/mo | +38% |
Based on $2.92/W Silfab pricing in Maine. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC (Section 25D expired).
Based on Texas Silfab pricing (ERCOT territories: Oncor, CenterPoint, Austin Energy). Estimates do not include the 0.50% ACH discount.
Gross Cost
$18,000
30% ITC Value
$5,400
40% ITC Value (w/ FEOC)
$7,200
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $136/mo | $116/mo | +17% |
| Very Good | 720-759 | 8.79% | $148/mo | $116/mo | +28% |
| Standard | 700-719 | 8.99% | $151/mo | $116/mo | +30% |
| Good | 660-699 | 9.79% | $161/mo | $116/mo | +39% |
Based on $3/W Silfab pricing in Texas. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC.
Gross Cost
$23,200
30% ITC Value
$6,960
40% ITC Value (w/ FEOC)
$9,280
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $176/mo | $149/mo | +18% |
| Very Good | 720-759 | 8.79% | $191/mo | $149/mo | +28% |
| Standard | 700-719 | 8.99% | $195/mo | $149/mo | +31% |
| Good | 660-699 | 9.79% | $207/mo | $149/mo | +39% |
Based on $2.9/W Silfab pricing in Texas. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC.
Gross Cost
$28,750
30% ITC Value
$8,625
40% ITC Value (w/ FEOC)
$11,500
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $218/mo | $185/mo | +18% |
| Very Good | 720-759 | 8.79% | $237/mo | $185/mo | +28% |
| Standard | 700-719 | 8.99% | $241/mo | $185/mo | +30% |
| Good | 660-699 | 9.79% | $257/mo | $185/mo | +39% |
Based on $2.875/W Silfab pricing in Texas. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC.
Gross Cost
$33,600
30% ITC Value
$10,080
40% ITC Value (w/ FEOC)
$13,440
| Credit Tier | FICO | APR | Propel Monthly | Trad. Loan (5.99%) | Savings vs Loan |
|---|---|---|---|---|---|
| Excellent | 760+ | 7.79% | $255/mo | $216/mo | +18% |
| Very Good | 720-759 | 8.79% | $277/mo | $216/mo | +28% |
| Standard | 700-719 | 8.99% | $282/mo | $216/mo | +31% |
| Good | 660-699 | 9.79% | $300/mo | $216/mo | +39% |
Based on $2.8/W Silfab pricing in Texas. Traditional loan assumes same gross cost at 5.99% APR with $0 ITC.
Propel uses results-based pricing — your APR is determined by your FICO score from TransUnion. The difference between the best and worst tier can be $30-$80/month depending on system size. Here is how the tiers work and what you can do to optimize your rate.
Excellent
7.79%
FICO 760+
7.29% with ACH
Very Good
8.79%
FICO 720-759
8.29% with ACH
Standard
8.99%
FICO 700-719
8.49% with ACH
Good
9.79%
FICO 660-699
9.29% with ACH
Check your TransUnion score
Propel uses TransUnion specifically. Your Equifax or Experian score may differ.
Set up ACH auto-pay
Save 0.50% on your APR for the life of the loan. This applies at enrollment.
Add a co-applicant
If your spouse or partner has a higher score, they can co-apply (must live at the property).
Improve your score first
If you are near a tier boundary (e.g., 718 vs 720), paying down balances or correcting errors can save you 1%+ in APR.
Propel loans include three reamortization dates — after the 12th, 24th, and 36th monthly payments. These dates are built into the loan terms and give you an opportunity to reduce your monthly payment if you make extra principal payments.
Here is how it works: if you make additional payments beyond your required monthly amount before a reamortization date, the loan balance is lower than scheduled. At the reamortization date, Concert Finance recalculates your monthly payment based on the new, lower balance. This permanently reduces your monthly payment for the remainder of the loan term.
| Scenario | Extra Payments | Balance at Month 12 | New Monthly |
|---|---|---|---|
| No extra payments | $0 | ~$24,300 | ~$213 (unchanged) |
| $1,000 extra in year 1 | $1,000 | ~$23,300 | ~$205 |
| $3,000 extra in year 1 | $3,000 | ~$21,300 | ~$188 |
| $5,000 extra in year 1 | $5,000 | ~$19,300 | ~$171 |
Approximate values. Actual reamortization amounts depend on payment timing and loan servicer calculations.
This is a genuinely useful feature that traditional solar loans do not typically offer. If you receive a bonus, tax refund, or other windfall, you can apply it to your Propel loan and benefit from a permanently lower payment at the next reamortization date. No penalty, no fees, just a lower payment.
At first glance, Propel's monthly payments look higher than a traditional solar loan. But this comparison is misleading because it ignores the single biggest factor: the federal ITC.
A traditional solar loan in 2026 finances the full system cost at a lower APR (4-7%) but provides $0 in federal tax credit because Section 25D expired. Propel finances at a higher APR (7.79-9.79%) but captures the 30% ITC through the third-party ownership structure. The ITC savings are embedded in the Propel loan terms.
| Metric | Propel (8.99%) | Trad. Loan (5.99%) | Trad. Loan (4.99%) |
|---|---|---|---|
| System cost (ME, 8 kW) | $24,960 | $24,960 | $24,960 |
| Federal ITC captured | $7,488 (30%) | $0 | $0 |
| Effective loan basis | ~$17,472 | $24,960 | $24,960 |
| Monthly payment | ~$213 | ~$161 | ~$146 |
| Total paid (25 yr) | ~$63,900 | ~$48,300 | ~$43,800 |
| ITC value to you | $7,488 | $0 | $0 |
| Net total (paid minus ITC) | ~$56,412 | ~$48,300 | ~$43,800 |
| Performance guarantee | Yes (85%, 5 yr) | No | No |
| Maintenance included | Yes (5 yr) | No | No |
| Ownership | Year 5 | Day 1 | Day 1 |
The honest bottom line
A traditional loan at 4.99-5.99% APR is cheaper in total dollars paid over 25 years, even after accounting for Propel's ITC capture. Where Propel wins is on the non-cost features: the performance guarantee, included maintenance for 5 years, and the fact that you did not need the ITC to be available to you as an individual. If the ITC were still available to homeowners, traditional loans would be the clear winner. In the 2026 reality where homeowners get $0 ITC, Propel's gap is much narrower than the APR difference suggests.
Propel pricing varies between Maine and Texas due to differences in labor costs, permitting requirements, and market conditions. Here is how the two states compare for the same system sizes.
| System Size | Maine $/W | Maine Gross | Texas $/W | Texas Gross | Difference |
|---|---|---|---|---|---|
| 6 kW | $3.25/W | $19,500 | $3.000/W | $18,000 | +$1,500 ME |
| 8 kW | $3.12/W | $24,960 | $2.900/W | $23,200 | +$1,760 ME |
| 10 kW | $3.00/W | $30,000 | $2.875/W | $28,750 | +$1,250 ME |
| 12 kW | $2.92/W | $35,040 | $2.800/W | $33,600 | +$1,440 ME |
Maine systems cost 7-10% more per watt than Texas due to higher labor costs and permitting complexity in New England. However, Maine's higher electricity rates ($0.27-$0.32/kWh vs $0.15-$0.16/kWh in Texas) mean the savings per kWh are significantly greater in Maine. The payback on the higher system cost is more than offset by the higher value of each kWh produced.
Texas systems are typically larger (10-12 kW) because of higher cooling loads and available roof space. Maine systems tend to be smaller (6-8 kW) but each kWh is worth nearly twice as much in bill savings. Both states benefit equally from the 30% ITC capture through Propel.
Concert Finance offers a 0.50% APR reduction for customers who set up automatic ACH payments. This is a permanent discount for the life of the loan, as long as you maintain auto-pay enrollment. The payment tables above do not include this discount — your actual payment with ACH would be lower.
| Credit Tier | Standard APR | ACH APR | Monthly Savings | 25-Year Savings |
|---|---|---|---|---|
| Excellent | 7.79% | 7.29% | $8/mo | $2,400 |
| Very Good | 8.79% | 8.29% | $8/mo | $2,400 |
| Standard | 8.99% | 8.49% | $9/mo | $2,700 |
| Good | 9.79% | 9.29% | $8/mo | $2,400 |
Based on a $25,000 loan amount. ACH discount applies to the life of the loan and requires active auto-pay enrollment.
The ACH discount saves $8-$10/month on a typical system, which adds up to $2,400-$3,000 over 25 years. It is free money — there is no reason not to use auto-pay unless you need manual control over payment timing.
Propel monthly payments range from approximately $140/month for a small 6 kW system with excellent credit (7.79% APR) to approximately $340/month for a large 12 kW system with good credit (9.79% APR). The most common scenario — an 8 kW system with standard credit (8.99% APR) — costs approximately $210-$255/month. All payments are fixed for 25 years with no escalator.
The ITC does not reduce your payment directly as a credit. Instead, the 30% Section 48E commercial ITC is captured by the third-party owner and the savings are structurally embedded in the loan terms that Concert Finance offers. Your Propel payment is already lower than it would be without the ITC capture. Think of it as a pre-applied discount built into the financing structure, not a rebate you receive after the fact.
Results-based pricing means your APR is tied to your credit profile rather than a flat rate. Concert Finance evaluates your FICO score (TransUnion) and assigns one of four rate tiers: 7.79% APR (760+ FICO), 8.79% APR (720-759 FICO), 8.99% APR (700-719 FICO), or 9.79% APR (660-699 FICO). Better credit means a lower rate and lower monthly payment. A 0.50% discount applies if you set up ACH auto-payments.
No. The payment estimates on this page are approximations based on system size, standard pricing, and published APR tiers. Your actual payment depends on your specific system design, roof conditions, local permitting costs, and final credit evaluation. These estimates give you a realistic range for planning purposes. Get a formal quote from NuWatt for your exact payment.
Propel loans include three reamortization dates — after the 12th, 24th, and 36th monthly payments. If you make extra principal payments before these dates, your loan is recalculated with the lower balance, which reduces your monthly payment going forward. This is optional — you are never required to make extra payments, but the option gives you flexibility to lower your payment over time.
Propel APRs (7.79-9.79%) are higher than many traditional solar loans (4-7% in 2026). However, traditional loans in 2026 offer $0 federal tax credit since Section 25D expired. Propel captures the 30% ITC through its third-party ownership structure. For a $30,000 system, that is $9,000 in captured ITC value. When you compare the effective cost (total payments minus ITC value), Propel is competitive with or better than a traditional loan.
No. Your APR is determined solely by your credit tier, not your system size. A 6 kW system and a 12 kW system at the same credit tier will have the same APR. What changes with system size is the loan amount and therefore the monthly payment. The APR range is 7.79% (excellent credit) to 9.79% (good credit) regardless of system size.
If you set up automatic monthly payments through ACH (direct bank transfer), Concert Finance reduces your APR by 0.50 percentage points. So an 8.99% rate becomes 8.49%, an 7.79% rate becomes 7.29%, and so on. This discount applies for as long as you maintain ACH auto-payments. The payment estimates on this page do not include the ACH discount — your actual payment would be slightly lower with auto-pay.
These are estimates. Get a real quote based on your roof, usage, and credit profile. The initial check is a soft pull — no impact on your credit score.
Propel financing provided by Concert Finance. Loans originated by Medallion Bank, Member FDIC.
How Propel Solar Works
Step-by-step guide to the Propel financing process.
Propel Solar Financing Review
Independent review with pros, cons, and rating.
Propel Financing Guide
The definitive Propel guide with state-by-state analysis.
Concert Finance Solar Review
Review of Concert Finance as a lending platform.
Propel vs Sunrun Lease
Head-to-head comparison with Sunrun solar lease.
Propel Main Page
Qualifier tool, rate calculator, and state routing.
Elena helps homeowners plan whole-home electrification projects — solar, heat pumps, batteries, and EV charging. She focuses on financing strategies and long-term energy savings.