Solar Loans Guide (Rates, Tips & Comparisons) (2023)

Solar Loans Guide (Rates, Tips & Comparisons) (2023)

Here’s what we’ll cover in this guide:

  • How solar loans work
  • The differences between solar loans and leases
  • How to choose the best solar loan for you
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How Do Solar Loans Work?

So, how do solar loans work, exactly? In essence, they operate in the same way as any typical loan for a home or car would: After selecting a provider and solar panel type to install, you take out the loan to purchase a solar energy system and repay the borrowed money over time.

The energy savings provided by the solar panel system, plus the federal solar tax credit, can be used to pay back that loan plus a bit of interest. The typical solar loan payback period ranges between five and 10 years, allowing a borrower to enjoy over a decade of free renewable energy generated by their system after paying it off.

Badge icon


Best National Provider

Nationwide Service

EcoWatch rating

Average cost


  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage


  • Expensive
  • Customer service varies by local dealer
Badge icon

Blue Raven Solar

Best Solar Financing

Regional Service

EcoWatch rating

Average cost


  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation


  • Doesn't offer solar batteries (coming 2022)
Badge icon

ADT Solar

Best Warranty Coverage

Regional Service

EcoWatch rating

Average cost


  • Industry-leading warranty coverage
  • Expansive service area


  • Some reported communication issues
  • No leases or PPAs

Solar lending comes in many different forms and can finance 100% of the cost of a solar installation. Many loan providers offer low monthly payments or zero-money-down options depending on your situation. Here are the most common types of loans:

  • An unsecured personal loan
  • A home equity loan or line of credit
  • In-house solar financing through your solar installation company

For the most part, the terms and conditions of solar borrowing reflect those of any other standard loan. More specifically:

  • Securing a lower interest rate means having a lower overall cost to borrow.
  • A shorter loan term generally means higher monthly loan payments but a lower overall cost to borrow.
  • The loans available to you will vary in interest rates, term lengths, loan amounts, credit requirements, etc.

Overall, solar loans provide a wonderful opportunity for customers to enjoy the perks of system ownership without having to spend an uncomfortable amount of money upfront. Though the overall value loans provide is slightly lower than a cash purchase, the overall savings are significantly greater than a solar lease.

Which Is Better: Solar Loans or Solar Leases?

Loans and leases are very different, starting with the ownership of the solar panels themselves. When you lease a solar energy system, your solar provider retains ownership. This allows your provider to enjoy the benefits of ownership, namely, cashing in on the federal tax credit.

Leasing solar equipment can also complicate selling a home, and getting out of a solar lease comes with hefty cancellation fees. In our experience, most solar horror stories result from unethical solar companies pushing leases on unassuming customers under the guise of “free solar panels.” Customers can end up trapped in a bad contract with no way out.

Don’t let that scare you off of a solar lease, however, if that’s what you can afford. Just be sure to do your research. Though solar leases can save customers money and lower their reliance on fossil fuels, the long-term value of a solar lease is far lesser than the long-term benefits of system ownership. When you cover your solar energy system cost with a loan, you can still enjoy the following:

  • A return on investment (ROI) via energy savings
  • Value added to your property from solar
  • Money back via the federal solar tax credit
  • Local tax incentives for system ownership, including property and sales tax exemptions
lifetime savings from solar loans
Savings are estimated for a medium-to-large sized home and will vary based on energy use.

How Do You Choose the Right Solar Loan?

There are a number of factors to keep in mind when considering the best solar loan for your needs, including:

  • Monthly payment amount: If you end up choosing a shorter loan term (i.e., a loan that you must pay off in a shorter amount of time), your monthly payments will probably be higher. The overall cost of the loan will be lower, but it’s nevertheless important to consider the impact on your household budget.
  • Down payment amount: Depending on the loan you choose, you may or may not be required to put down an initial payment on the solar panels. Generally, larger down payments will mean lower interest rates and a more valuable loan overall.
  • Fees: Some solar lenders may charge prepayment penalties or monthly fees in addition to your monthly principal and interest payments. Always make sure you get fee information upfront, so as to ensure there are no surprises on your loan statement.

If you are still researching how much a solar system would cost for your home, you can click below to connect with an EcoWatch-vetted installer and get a free estimate.

What Is the Difference Between Secured Solar Loans and Unsecured Solar Loans?

Another important factor to consider is whether you’ll want a secured loan or an unsecured loan. Let’s break it down:

  • Secured loans are usually connected to some piece of collateral, such as a piece of equity in your house; this provides the lender with some protection. If you fail to make your payments, the lender can claim this piece of collateral. Because the lender has some insurance, secured loans usually offer lower interest rates and more favorable terms overall.
  • Unsecured loans do not offer any collateral or security provisions to the lender. They represent a greater risk on the lender’s part, and therefore come with higher interest rates and less flexibility.

A secured loan is generally the smarter choice when possible. However, if you don’t have enough equity in your home (or aren’t in a place to risk it), an unsecured loan may be the wiser decision.

solar loans guide

How Do I Find the Best Solar Loan Rates?

Confident you know the best type of loan for your situation? Now comes securing the lowest interest rate possible. Most solar loan interest rates, such as those from lender LightStream, range from 3.99% to 16.99%. But it is possible to get lower rates. Here are a few tips to keep your rates as low as possible when financing a solar panel system:

  • Shop around: It’s usually best not to go with the very first lender you find. Spend some time shopping around and comparing rates. Most lenders will give you a free quote that’s good for a number of days while you compare offers from other companies. Have a plan before you start getting quotes.
  • Have someone co-sign: Having a co-signer on your loan — especially one with excellent credit — makes a lender far more likely to lower your interest rate.
  • Improve your credit score: The higher your credit score, the lower your interest rate will be. Small changes to your credit score before getting a quote can save you thousands in the long run. Here are a few tips to do so:
    • Pay back any old debts and credit card balances
    • Confirm your revolving credit limit is at its maximum
    • Be sure not to miss any monthly bill payments
    • Don’t open any new credit cards near or during the process of applying for a solar loan

Local Solar Loan Programs

Given the undeniable environmental and financial benefits of solar energy efficiency, federal and local government bodies often launch programs to help make solar financing more feasible for their residents.

Homeowners who are interested in going solar should also know about Property Assessed Clean Energy (PACE) loan programs. According to the Department of Energy, PACE programs “allow a property owner to finance the up-front cost of solar energy or other eligible improvements on a property and then pay the costs back over time through a voluntary assessment.”

What makes these programs unique is that the assessment is tied to the property itself, not to the individual. PACE financing legislation exists in some form in 36 states plus Washington D.C. A handful of states have separate solar loan programs and rebates for homeowners. Here are some current programs worth knowing about:

State Solar Loan Program Maximum Loan Amount Interest Rate Longest Repayment Term
Connecticut Energy Conservation Loan Program $25,000 0% to 7% 12 years
Louisiana Home Energy Loan Program (HELP) $6,000 2% 5 years
Michigan Michigan Saves Home Energy Financing $50,000 4.44% to 7.90% 15 years
North Carolina State-regulated municipal loan options Varies Up to 8% 20 years
Ohio Energy Conservation for Ohioans (ECO-Link) Program $50,000 3% APR reduction on bank loans 7 years

Additionally, certain cities, municipalities and even utility companies may offer low-interest solar loans. We recommend researching your specific area before turning to banks or credit institutions. The DSIRE database is a helpful resource.

Where Can You Get a Solar Loan?

If your state doesn’t have its own solar energy loan program or you’re not eligible for enrollment, there are plenty of other places to get solar loans. Any of the best solar companies will be sure to assist you in finding a loan partner, but some other places to check include:

  • Credit unions
  • Lending institutions
  • In-house financing options through your solar installer

Some installers use a third-party solar lender, but some, such as Blue Raven Solar, offer innovative financing directly. We can’t emphasize enough the importance of shopping around and comparing rates and offers before deciding on which solar lender is the best fit for your needs.

To get started with a free quote and find solar loan information from a top solar company in your area, you can click below to connect with an EcoWatch-vetted installer and get a free estimate.

FAQs: Solar Loans

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Article author
Karsten is an editor and energy specialist focused on environmental, social and cultural development. His work has been shared by sources including NPR, the World Economic Forum, Marketwatch and the SEIA, and he is certified in ESG with the CFA Institute. Before joining EcoWatch, Karsten worked in the solar energy sector, studying energy policy, climate tech and environmental education. A lover of music and the outdoors, Karsten might be found rock climbing, canoeing or writing songs when away from the workplace.
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Expert reviewer
Melissa is an avid writer, scuba diver, backpacker and all-around outdoor enthusiast. She graduated from the University of Florida with degrees in journalism and sustainability studies. Before joining EcoWatch, Melissa worked as the managing editor of Scuba Diving magazine and the communications manager of The Ocean Agency, a nonprofit that’s featured in the Emmy award-winning documentary Chasing Coral.

Comparing authorized solar partners

EcoWatch rating
Average cost
BBB Rating
Year founded
Service Area
Brands of Solar Equipment Offered
Warranty Coverage
  • 5.0
    • Most efficient panels on the market
    • National coverage
    • Cradle to Cradle sustainability certification
    • Great warranty coverage
    • Expensive
    • Customer service varies by local dealer
    Best National Provider
    SunPower Panels
    25-year all-inclusive warranty

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