Question 1

What is a commercial solar loan?

Accepted Answer

A commercial solar loan is a business loan specifically designed to finance a commercial solar installation. The borrower owns the system from day one — meaning they claim the 30% Federal Investment Tax Credit (ITC), 5-year MACRS accelerated depreciation, and 100% Texas property tax exemption directly on their business taxes. Typical terms range from 10-20 years at 5.5%-9% APR with 100% financing (zero down) for qualifying businesses.

Question 2

What are typical commercial solar loan rates?

Accepted Answer

Commercial solar loan rates typically range from 5.5% to 9% APR in 2026, depending on borrower credit, loan amount, term length, and whether the loan is secured. Secured loans (UCC-1 filed on the solar system as collateral) run 5.5-7%. Unsecured loans run 7-9%. Larger loans ($500K+) typically get better rates. Specialized solar lenders like Sunstone Credit, Ascentium Capital, and community banks often beat big-bank rates because they understand solar tax benefits.

Question 3

What loan term lengths are available?

Accepted Answer

Commercial solar loans are typically offered at 7, 10, 12, 15, or 20 years. The optimal term depends on your cash flow strategy: 7-10 year loans maximize total interest savings and match the typical 4-7 year payback period. 15-20 year loans minimize monthly payments, making them often lower than your electricity savings — yielding positive cash flow from Year 1 even without tax benefits. Most Texas commercial borrowers choose 15 years for this reason.

Question 4

Can I claim the 30% Federal ITC if I finance my solar with a loan?

Accepted Answer

Yes — this is the key advantage of loans over leases and PPAs. With a solar loan, YOU own the system, so you claim the full 30% Federal Investment Tax Credit on your business taxes in the year the system is placed in service. You also claim 5-year MACRS accelerated depreciation, Texas property tax exemption, and any applicable state/utility rebates. Lease and PPA structures transfer these benefits to the third-party owner.

Question 5

How much can I borrow for commercial solar?

Accepted Answer

Commercial solar loans are typically sized to project cost. Most lenders offer 100% financing up to $1M-$2M for established businesses with 3+ years of operating history and strong credit. Larger projects ($2M-$10M+) are also financeable but may require additional collateral, stronger DSCR (debt service coverage ratio), or SBA 504 involvement. Minimum loan amounts are usually $25K-$50K, meaning systems under ~10 kW typically aren't loan-financed.

Question 6

What credit score is required for a commercial solar loan?

Accepted Answer

Most specialized solar lenders require a business credit score of 680+ (FICO SBSS) and personal credit (for the owner/guarantor) of 680+. Community banks and credit unions may approve scores as low as 640 with adequate business cash flow. Credit scores above 720 typically unlock the best rates (5.5-6.5% APR). Unlike residential solar loans, commercial solar lenders weigh business financials heavily — tax returns, P&L statements, and balance sheet strength matter more than pure credit score.

Question 7

Sample payment: what does a $400,000 solar loan cost?

Accepted Answer

For a $400,000 commercial solar loan at 6.5% APR over 15 years, the monthly payment is approximately $3,485. Annual debt service is $41,820. If the system produces electricity worth $48,000/year (typical for a 240 kW system in Texas), the business has ~$6,180/year in net positive cash flow — before counting the 30% Federal ITC ($120,000) and MACRS depreciation savings (~$85,000), which typically reduce Year 1 effective cost by 45-55%.

Question 8

Can I prepay a commercial solar loan without penalty?

Accepted Answer

Most commercial solar loans from specialized solar lenders (Sunstone, Dividend Finance, GoodLeap commercial, Mosaic) allow prepayment without penalty after year 1. Traditional bank commercial loans sometimes include prepayment penalties of 1-3% in early years — always review the loan documents. Many businesses strategically prepay the principal equal to their Year 1 ITC refund (30% of system cost), which sharply reduces total interest paid over the loan life.

Borrower Profile	Typical APR	Notes
Excellent (720+ credit, 5+ yr operating)	5.5% - 6.5%	Best tier — solar-specialist lenders
Good (680-720, 3+ yr operating)	6.5% - 7.5%	Majority of approved loans
Fair (640-680, 2+ yr operating)	7.5% - 9%	Community banks, credit unions
Subprime or startup (<640, <2 yr)	9%+ or decline	Consider PPA or lease instead

System Size	Gross Cost	Term	APR	Monthly Payment
100 kW	$250,000	15 yrs	6.5%	$2,178/mo
250 kW	$625,000	15 yrs	6.5%	$5,445/mo
500 kW	$1,250,000	15 yrs	6%	$10,550/mo
1 MW	$2,500,000	20 yrs	5.75%	$17,561/mo

Commercial Solar Loans Explained

See your commercial solar savings

Commercial Solar Loan Rates (2026)

Commercial Solar Loan Payment Examples

Solar Loan vs. Cash vs. Lease vs. PPA

Loan Advantages

Loan Disadvantages

How to Qualify for a Commercial Solar Loan

Operating History

Debt Service Coverage

Credit Scores

Commercial Solar Loan FAQs

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