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Comparative Analysis of Investment Attractiveness of Leasing and Credit Agreement Portfolios in Solar Energy

Explore the investment dynamics of solar loans and leases, comparing risks, returns, and market performance in the growing solar energy sector.

Ivan Korotaev

Written and fact checked by

Debexpert CEO, Co-founder

Published May 2, 2025Fact checked
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Investors in the U.S. solar market often choose between solar loans and solar leases. Each option has unique risks, returns, and market dynamics. Here’s a quick breakdown:

  • Solar loans now finance 70% of residential solar installations (2023), offering lower risks, predictable returns, and easy ownership transfer. Default rates are low (0.5%-0.83%), and loans increase property value by ~4%.
  • Solar leases, covering 23% of installations (2023), provide immediate savings but come with higher complexity and regulatory restrictions. Risks include sponsor reliability, fee disputes, and grid pricing fluctuations.

Key Comparison Points

  • Risk: Loans have fewer complications, while leases face more variables like sponsor and technology risks.
  • Market Reach: Loans are available nationwide; leases are limited by state regulations.
  • Property Impact: Loans boost property value, while leases can complicate sales.
  • Tax Benefits: Loans allow owners to claim benefits; leases do not.

Quick Comparison Table

Investment AspectSolar LoansSolar Leases
Risk ProfileLower complexityHigher due to more variables
Market AccessibilityNationwideLimited by state rules
Property Value Impact4% increase ($15,000)Can complicate sales
Tax BenefitsOwner claims benefitsLeasing company retains benefits
Default Rates0.5%-0.83%Not directly applicable

Solar loans are simpler, more transparent, and offer stable returns, making them the preferred choice for many investors.

solar Loan VS Solar Lease VS Solar PPA Vs Solar Cash ...

1. Solar Lease Investment Portfolios

Solar lease investment portfolios accounted for 23% of residential solar installations in 2023.

Market Performance and Liquidity

Investors often use asset-backed securitization and PPA (Power Purchase Agreement) buyout strategies to enhance portfolio liquidity. These approaches help ensure smoother cash flow and better financial flexibility.

Regulatory Framework Impact

The Investment Tax Credit (ITC), extended by the Inflation Reduction Act of 2022, remains at 30% until 2032. Afterward, it decreases to 26% in 2033 and 22% in 2034. While these incentives boost adoption, they also bring associated risks that can influence portfolio performance.

Risk Assessment Factors

Consumer Protection Issues The Consumer Financial Protection Bureau has identified several risks that could affect the stability of solar lease portfolios:

Risk CategoryImpact on Portfolio
Sales PracticesMisleading sales tactics may lead to disputes
Fee StructureHidden fees can increase the risk of defaults

Market Demographics and Adoption Trends

Solar leases are reaching a broader audience. The median income of solar adopters dropped from $140,000 in 2010 to $117,000 in 2022, showing that solar energy is becoming more accessible. Lower installation costs play a big role in driving this trend.

Cost Evolution and Market Impact

Residential solar installation costs have fallen sharply. The median cost dropped from $3.80 per watt in 2014 to $2.80 per watt in 2023. This decline not only makes solar energy more affordable for consumers but also boosts the profitability of lease portfolios.

These developments set the stage for a deeper comparison between solar lease and solar loan portfolios.

2. Solar Loan Investment Portfolios

Compared to lease portfolios, solar loan portfolios offer more stability due to their consistently low default rates and predictable performance factors. They also provide appealing returns, driven by these stable metrics. Let’s dive into the key default rates and risk factors shaping loan portfolio outcomes.

Default Rate Analysis

Residential solar loans have default rates ranging from 0.5% to 0.83%.

"The default rates in residential solar lending can vary depending on various factors such as the lender's underwriting standards, borrower creditworthiness, loan term, and the solar panel system's performance." - Team Atmos

Risk Factors and Portfolio Performance

Several factors beyond default rates play a role in determining the performance of a loan portfolio:

FactorEffect on Investment
Underwriting StandardsDetermines borrower quality and default risk
System PerformanceImpacts the borrower’s ability to achieve energy savings
Loan Term StructureAffects payment feasibility and default likelihood
Market ConditionsEconomic shifts can influence recovery values

These elements, combined with the solar system’s retained value, shape the portfolio’s overall performance.

Recovery Value Considerations

Solar installations hold considerable value even in default cases. This retained value reduces potential losses and makes these portfolios an appealing option for investors.

Investment Option Comparison

Let's break down solar investment choices by comparing leasing and loan options.

Market Accessibility and Liquidity

Solar loans provide access across all 50 states, while solar leases are often limited by state-specific regulations. This broader reach makes solar loans more flexible and easier to trade. These accessibility differences also play a role in how these assets impact overall value.

Asset Value and Property Impact

The way these options affect property value and ownership differs significantly:

AspectSolar LoansSolar Leases
Property Value ImpactAverage 4% increase (around $15,000 premium)Can complicate property sales
Asset TransferSimple transfer with property77% successful lease transfers
Buyer ResponseNo transfer issues20% buyer hesitation rate
Tax BenefitsOwner receives the benefitsLeasing company retains benefits
Geographic AvailabilityAvailable in all statesRestricted by state regulations

Risk Considerations

Solar loans come with fewer complications since the owner directly holds the asset. In contrast, leases bring additional risks tied to sponsors, counterparties, technology, and grid pricing.

Investment Performance Factors

The structural differences between solar loans and leases influence how they perform as investments:

  • Asset Formation: Both face unique securitization challenges.
  • Market Growth: Solar loan portfolios have benefited from increasing demand. For instance, installing 3.3 GW of solar capacity in 2012 required $12 billion in financing.
  • Risk Management: Lease portfolios demand extra oversight to handle risks like sponsor reliability and grid pricing.

Current Market Conditions

Today’s market leans toward solar loans. With their nationwide availability, direct ownership, predictable value, and easier property transfers, they offer stable and competitive returns for investors.

Conclusion

The analysis highlights different risk-return profiles for solar portfolios, shaped by their distinct structures. Solar loan portfolios, for instance, benefit from straightforward asset ownership, while solar leasing portfolios come with added layers of complexity.

When it comes to solar ABS ratings, these typically start at BBB or BBB-, primarily due to the limited amount of historical data available. However, as the market continues to grow and mature, ratings are expected to improve, and credit enhancement requirements may decrease.

"Leasing can offer immediate savings with no upfront costs, but owning your solar system provides greater financial returns and adds value to your property." - Energy Select

For investors weighing their options, here’s a quick comparison:

Investment AspectSolar LoansSolar Leases
Risk ProfileLower complexity, direct ownershipMultiple risk layers
Asset PerformanceEasier to evaluatePerformance influenced by more variables
Credit EnhancementLower requirementsHigher due to structural complexity

This reinforces the earlier point that solar loans offer a simpler and more transparent investment structure compared to leases.

FAQs

What are the key risks of investing in solar lease portfolios compared to solar loan portfolios?

Investing in solar lease portfolios comes with several risks that differ from those of solar loan portfolios. Key risks include sponsor/servicer risk, where the financial stability and reliability of the leasing company can impact returns, and counterparty risk, which arises if customers default on their lease payments.

Other considerations include technology risk, as solar equipment performance or obsolescence can affect profitability, and credit risk, where the creditworthiness of lessees plays a vital role. Additionally, grid electricity price risk can influence demand for solar energy, and transfer risk may complicate asset ownership changes. Understanding these factors is essential for making informed investment decisions.

How do state laws influence the investment potential of solar leasing agreements?

State laws play a significant role in shaping the investment potential of solar leasing agreements. In some states, restrictions or unclear regulations on third-party ownership can limit the use of solar leases, which are often tied to Power Purchase Agreements (PPAs). This can reduce the availability of leasing options for investors.

On the other hand, states with supportive policies, such as strong community solar programs or mandates for solar-ready building designs, tend to create more favorable conditions for solar leasing models. These policies can enhance the attractiveness of solar leases by reducing risks and increasing market demand. Investors should carefully evaluate the regulatory landscape in each state to assess the viability and profitability of solar leasing opportunities.

Why do solar loan portfolios tend to have lower default rates compared to other financing options?

Solar loan portfolios generally experience lower default rates due to several factors. Homeowners who invest in solar systems often have stronger financial profiles, including higher credit scores and lower debt-to-income ratios. Additionally, these loans are typically supported by high-quality installation partners and advanced monitoring systems, ensuring better system performance and customer satisfaction.

Another key factor is the Debt Service Coverage Ratio (DSCR), which is often set at a minimum of 1.25. This ensures borrowers have sufficient cash flow to cover loan payments. Together, these elements contribute to the financial stability and reliability of solar loan portfolios, making them an attractive option for investors.

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Ivan Korotaev

About the Author

Ivan Korotaev
Debexpert CEO, Co-founder

More than a decade of Ivan's career has been dedicated to Finance, Banking and Digital Solutions. From these three areas, the idea of a fintech solution called Debepxert was born. He started his career in  Big Four consulting and continued in the industry, working as a CFO for publicly traded and digital companies. Ivan came into the debt industry in 2019, when company Debexpert started its first operations. Over the past few years the company, following his lead, has become a technological leader in the US, opened its offices in 10 countries and achieved a record level of sales - 700 debt portfolios per year.

Expertise

  • Big Four consulting
  • Expert in Finance, Banking and Digital Solutions
  • CFO for publicly traded and digital companies