Solar PPA and Solar Lease Guide for California Homeowners (2026)

Understand Third-Party Solar Ownership, Monthly Payments, Prepaid Options, and What Works Best for Your Home

Thinking about going solar without purchasing the equipment outright? A Solar Power Purchase Agreement (PPA) or solar lease may offer an alternative to buying a solar system with cash or financing a traditional solar loan.

Both options allow homeowners to use solar electricity while a third-party company owns the equipment. However, the payment structures, maintenance responsibilities, contract terms, and future ownership options can be different.

For homeowners in Santa Clara and San Mateo Counties, understanding these differences is especially important in 2026, following changes to federal solar tax incentives and California's electricity billing rules.

Home Pro Roofing and Solar helps homeowners compare solar PPAs, solar leases, prepaid agreements, and direct ownership options. We also evaluate roof condition, battery storage, and installation requirements so homeowners can make informed decisions about their entire project.

This guide explains how third-party solar ownership works, what the contracts mean, and what to consider before committing.

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What Is Third-Party Solar Ownership?

Third-party solar ownership, commonly called TPO, is an arrangement in which a company other than the homeowner owns the solar equipment installed on the property.

The homeowner receives the benefit of using electricity generated by the system while the third-party owner retains legal ownership under the agreement.

The two most common forms of third-party solar ownership are:

• Solar Power Purchase Agreement (PPA): The homeowner generally pays for the electricity produced by the solar system.
• Solar Lease: The homeowner generally pays a scheduled amount for the right to use the solar equipment.

Both arrangements can offer lower initial costs than purchasing the equipment outright. Depending on the program, they may also provide maintenance, monitoring, warranties, and performance protections.

However, these benefits are not identical across all contracts.

The solar agreement determines who is responsible for equipment repairs, battery replacement, insurance, roof access, and eventual system removal or transfer.

What Is a Solar Power Purchase Agreement (PPA)?

A Solar Power Purchase Agreement is a contract in which a third-party provider owns the solar system and the homeowner purchases the electricity it generates.

Under a traditional monthly PPA, electricity is generally priced in cents per kilowatt-hour (kWh).

For example, an agreement might establish a starting rate of 20 cents per kWh. If the system generates 1,000 kWh during a billing period, the solar electricity charge would be $200, before any other applicable contract charges.

This is an illustrative example, not an actual Home Pro program quote.

Some agreements maintain the same electricity rate for a specified period. Others include annual increases, known as escalators.

How Does a Monthly Solar PPA Work?

A typical monthly PPA follows this process:

1. Your electricity usage, roof condition, and available installation space are evaluated.
2. A solar system is designed around your home's energy needs.
3. The provider presents an agreement detailing the electricity rate, contract length, escalator, and responsibilities.
4. An approved installation company installs the solar equipment and handles its assigned permitting and interconnection responsibilities.
5. The PPA provider retains ownership of the system.
6. You pay for solar electricity according to the agreement while continuing to pay applicable utility charges.

Many monthly PPA programs offer little or no upfront payment, subject to the provider's requirements.

A zero-down PPA does not mean free electricity. The cost is paid over time through the agreed solar electricity charges.

Advantages and Disadvantages of a Solar PPA

Potential advantages:

• Little or no upfront equipment purchase cost.
• Solar electricity pricing established by contract.
• Third-party ownership rather than direct equipment ownership.
• Monitoring and maintenance provisions that may reduce homeowner responsibilities.
• Potential access to solar and battery storage without purchasing the equipment.

Potential disadvantages:

• Long-term contractual commitments.
• Annual electricity price escalators in some agreements.
• Payments that depend on system production.
• Contract restrictions when selling or refinancing a property.
• Purchase and termination options that may involve additional costs.
• Equipment ownership remains with the provider unless the contract provides otherwise.

A solar PPA can be a good choice when its long-term costs and responsibilities match the homeowner's goals.

What Is a Solar Lease?

A solar lease is a third-party ownership agreement in which the homeowner pays for the right to use a solar system rather than purchasing the equipment.

The leasing company retains ownership of the solar panels and other covered equipment during the agreement.

Unlike a traditional production-based PPA, a monthly solar lease generally establishes scheduled payments that do not change based on each month's solar generation.

Some leases have level payments throughout the agreement. Others include annual increases.

[H3] How Does a Monthly Solar Lease Work?

The process is similar to a solar PPA, but the billing structure is different.

1. Your home is evaluated for solar installation.
2. A system is designed based on expected electricity usage and available roof space.
3. The leasing company provides a contract specifying monthly payments, agreement duration, equipment coverage, and other terms.
4. An approved solar installer completes the installation.
5. The leasing company owns the solar system.
6. You make the scheduled lease payments and remain responsible for applicable utility charges.

A solar lease may appeal to homeowners who prefer predictable payments that are not calculated from monthly solar production.

However, the system's actual performance still matters because it affects the amount of utility electricity you need to purchase.

Advantages and Disadvantages of a Solar Lease

Potential advantages:

• Often little or no upfront payment.
• Predictable scheduled monthly payments.
• No initial homeowner equipment ownership requirement.
• Potential maintenance and warranty benefits.
• Solar production can help reduce electricity purchased from the utility.

Potential disadvantages:

• Lease payments generally continue even when production varies.
• Some agreements include annual payment increases.
• Homeowners remain subject to contract restrictions.
• Selling the property may require a lease transfer or buyout.
• Future ownership is not automatic.
• Total long-term payments may exceed the cost of other financing arrangements.

A solar lease can make sense for someone who values predictable payments and third-party ownership, provided the full contract is competitive.

Solar PPA vs. Solar Lease: What's the Difference?

The main difference is how you pay for the solar system.

A monthly PPA generally charges for solar electricity produced, while a monthly lease generally charges a scheduled amount for use of the equipment.

With either arrangement, the third-party company typically owns the solar equipment and retains ownership-related rights under the contract.

Monthly PPA Payments

With a production-based PPA, your solar payment generally changes as the system generates more or less electricity.

A solar PPA may also have an annual escalator that increases the price per kWh.

Monthly Solar Lease Payments

With a traditional lease, you generally make a scheduled payment regardless of monthly production.

If the lease includes an escalator, the scheduled payment may increase annually.

Which Option Is Better?

Neither structure is automatically better.

A PPA may be attractive when homeowners want charges related to actual production. A lease may be appealing when they prefer scheduled payments.

The best choice depends on:

• Starting payment or electricity rate.
• Annual increases.
• Estimated solar production.
• Remaining utility costs.
• Battery storage provisions.
• Maintenance and warranty coverage.
• Property sale and transfer provisions.
• Total cost over the agreement's full term.

Always compare the complete agreements rather than only the initial monthly payment.

Solar PPA vs. Solar Lease vs. Solar Loan vs. Prepaid Solar

Solar loans and cash purchases involve homeowner ownership. Traditional leases and PPAs involve third-party ownership.

Prepaid solar agreements are another form of third-party ownership, with a different payment structure.

The following comparison highlights the major differences.

With cash or loan financing, homeowners generally own the equipment and handle maintenance responsibilities, subject to manufacturer and installation warranties.

With third-party ownership, the provider's actual contractual responsibilities determine which costs are covered.

For a broader comparison of loans, cash purchases, PACE, and other options, visit our Solar and Home Improvement Financing Guide.

What Is a Prepaid Solar Lease or Prepaid PPA?

A prepaid solar agreement allows a homeowner to make one upfront payment under a third-party-owned solar program rather than ongoing monthly solar payments under that agreement.

There are two important structures:

Prepaid Solar Lease: The homeowner makes an upfront payment for the contractual right to use the solar system.

Prepaid Solar PPA: The homeowner makes an upfront payment under a Power Purchase Agreement covering solar electricity.

Although the payment methods may appear similar, prepaid leases and prepaid PPAs are different contracts.

Home Pro works with prepaid programs that may include:

• Participate Energy: Prepaid Solar Lease.
• Maxwell Power, formerly HDM Renewable Finance: Prepaid Solar PPA.

Program availability and terms depend on the project and current provider offerings.

Can You Finance a Prepaid Solar Agreement?

Certain prepaid programs allow the upfront amount to be financed through a separate lender.

This means the homeowner may have two agreements:

1. A prepaid solar lease or PPA governing the solar system.
2. A loan agreement governing repayment of the prepaid amount.

The prepaid solar agreement may not require monthly solar payments, but the separate loan can still have monthly payments and interest charges.

Financing eligibility, interest rates, loan terms, and total repayment costs vary.

Learn more about Home Pro's program offerings on our Prepaid Solar Lease or Prepaid PPA in California page.

How Did Federal Solar Tax Credits Change in 2026?

The federal Residential Clean Energy Credit under Section 25D ended for qualifying residential expenditures after December 31, 2025.

The IRS generally treats a homeowner's expenditure as made when the original solar installation is completed. A payment made before the deadline does not preserve the credit if installation was completed afterward.

This means homeowners purchasing a newly installed solar system in 2026 generally cannot claim the former 30% federal residential solar credit.

Can Third-Party-Owned Solar Still Qualify for Business Tax Incentives?

Certain qualifying business-owned solar projects may be eligible for federal commercial clean energy incentives under separate tax provisions.

However, commercial solar incentive rules have also changed, including restrictions involving construction timing and eligibility.

A solar PPA or lease does not automatically qualify for these incentives simply because the equipment is third-party owned.

Where eligible incentives apply, a provider may factor their value into the pricing it offers homeowners.

The homeowner should not assume that every PPA or lease includes a guaranteed 30% discount, or that the full value of a business tax credit is passed directly to the customer.

For authoritative information, see the IRS guidance on residential energy credit changes and IRS guidance on commercial solar credit construction deadlines.

Are Solar PPAs and Leases Worth It in California in 2026?

Both arrangements can make financial sense, particularly for homeowners who want solar without making a large equipment purchase.

However, the financial results depend on your utility rates, expected solar production, monthly contract charges, escalators, battery storage, and the agreement's full duration.

The correct comparison includes both the solar contract and the remaining utility bill.

For example, assume a monthly solar lease begins at $150 per month.

The first-year lease payments would total $1,800, excluding utility charges.

A monthly PPA charging 20 cents per kWh with annual solar production of 9,000 kWh would also have an estimated first-year solar charge of $1,800, before other applicable charges.

These examples are illustrative. Actual proposals may include different production, prices, escalators, and terms.

An accurate comparison should examine long-term costs rather than only the first year.

How Do Annual Escalators Affect Solar Payments?

An escalator is a contractual annual increase in either the electricity rate or scheduled lease payment.

For example, a $150 monthly lease payment with a 3% annual escalator would increase to approximately $174 per month in the sixth contract year, after five annual increases.

Likewise, a PPA electricity rate of 20 cents per kWh with a 3% escalator would increase to approximately 23.2 cents per kWh in year six.

Escalators should be reviewed over the entire contract term.

A lower initial payment does not automatically mean a lower lifetime cost.

How Does Battery Storage Affect Solar PPAs and Leases?

Battery storage is increasingly important to California solar economics.

Under California's Net Billing Tariff, also known as the Solar Billing Plan, exported electricity generally receives compensation based on its value to the grid rather than full retail electricity prices.

Export values change depending on timing and utility rules.

A solar-plus-battery system can store daytime electricity for use during higher-cost evening hours, rather than exporting all excess production immediately.

Battery storage may also provide backup power during outages when the system includes the necessary equipment and configuration.

Are Battery Maintenance and Replacement Included?

Coverage depends on the PPA or lease agreement.

Some third-party-owned programs include battery monitoring, repairs, and replacement provisions. Others offer more limited protection.

Before signing, verify:

• Whether the battery is included in the solar agreement.
• Who owns the battery.
• Who handles monitoring and troubleshooting.
• Whether equipment failure is covered.
• Whether battery capacity degradation is covered.
• Who pays for replacement labor.
• Whether coverage lasts for the entire agreement.
• What backup functions are included.

Do not assume that battery replacement is automatically included in every PPA or lease.

Learn more about our Battery Backup and Energy Storage Services.

Who Owns the Solar Panels Under a PPA or Lease?

Under a traditional PPA or lease, the third-party company generally owns the solar equipment during the contract term.

The homeowner uses the electricity or equipment according to the agreement but does not automatically receive ownership.

Future purchase options depend on the actual contract.

Some prepaid programs may provide purchase or transfer options after a specified ownership period, including options beginning in the sixth year.

However, not every arrangement permits ownership transfer on the same schedule, and any purchase price or other conditions must be confirmed in writing.

Can You Buy the Solar System After Five or Six Years?

Possibly.

Some contracts provide purchase options after a specified period. Others use different schedules or do not offer the same rights.

Business tax credit recapture rules may influence when certain providers permit ownership changes.

The existence of a five-year federal investment credit recapture period does not mean that every homeowner automatically owns the system in year six.

Always check the agreement's purchase price, eligible dates, transfer procedures, and continuing obligations.

What Happens When You Sell Your Home With a Solar PPA or Lease?

Selling a home with a third-party-owned solar system can involve additional contractual steps.

Depending on the agreement, available options may include:

• Transferring the agreement to a qualified buyer.
• Purchasing the solar system before the home sale.
• Completing an approved contract termination or settlement.

Providers may require buyer qualification, transfer documents, or other approvals.

Homeowners should also review whether the provider has recorded a UCC financing statement or equipment-related notice.

Such a filing is not necessarily the same as a traditional mortgage lien, but it can require documentation or coordination during a property sale or refinance.

A PPA or lease should never be represented as automatically transferable or universally free of recorded equipment interests.

For additional consumer guidance, see the California Public Utilities Commission's Solar Consumer Protection Guide.

Should You Replace Your Roof Before Installing Leased or PPA Solar?

Your roof's condition is an important factor when considering any long-term solar contract.

If the roof needs replacement during the solar agreement, panels and mounting equipment may have to be removed and reinstalled.

With third-party-owned solar, the agreement may establish additional approval requirements and define who is responsible for those costs.

Replacing an aging roof before solar installation may prevent unnecessary future disruption.

Home Pro Roofing and Solar helps homeowners evaluate the roof and solar system together, including cases where existing solar panels must be temporarily removed for roof replacement.

Learn more about Solar Panel Removal and Reinstallation and our Roofing Services.

Who Actually Installs the Solar System Under a PPA or Lease?

The company financing or owning the solar system is not always the company that installs it.

A project can involve a third-party equipment owner, financing provider, solar installation contractor, and other service providers.

Home Pro may perform solar installation directly on certain projects.

Other programs require approved third-party installation companies.

Depending on the program and project, Solar Tech or Axia by Qcells may serve as qualified installation partners.

When a third-party installer is used, that company communicates directly with the homeowner regarding its installation work, scheduling, technical responsibilities, and applicable requirements.

Home Pro remains the customer-facing Home Pro relationship and coordinates the services covered by its own agreements.

The homeowner should understand which company is responsible for installation, permits, equipment warranties, monitoring, maintenance, and ongoing support.

Explore our Solar Installation Services for more information.

When Is a Solar PPA the Better Choice?

A monthly PPA may be a good option if you:

• Want little or no upfront solar equipment cost.
• Prefer payments based on solar electricity production.
• Are comfortable with the electricity rate and any annual escalator.
• Prefer third-party equipment ownership.
• Value the maintenance and performance protections included in the contract.
• Understand the long-term agreement and resale provisions.

When Is a Solar Lease the Better Choice?

A monthly solar lease may be a good option if you:

• Prefer scheduled monthly solar payments.
• Want to avoid purchasing the equipment.
• Are comfortable making the lease payment even when production varies.
• Understand the maintenance and warranty provisions.
• Are comfortable with escalators and contractual transfer requirements.
• Find the lease provides competitive long-term value compared with other options.

When Might a Prepaid Agreement or Solar Loan Be Better?

A prepaid solar lease or PPA may appeal to homeowners who have funds available for a one-time payment or who can qualify for separate financing.

Prepaid arrangements may also provide specific future ownership options depending on the program.

A solar loan or cash purchase may be preferable for homeowners who want equipment ownership from the start, more direct control over the system, and fewer third-party ownership restrictions.

Every option should be compared using total costs, ownership, warranty coverage, maintenance responsibilities, and long-term flexibility.

Visit our Solar Financing Guide for additional financing options.

Questions to Ask Before Signing a Solar PPA or Lease

Before signing a long-term solar contract, ask:

1. Who owns the solar panels, inverter, and battery?
2. What are the initial monthly payments or electricity rates?
3. Is there an annual escalator?
4. How long does the agreement last?
5. What is the total estimated cost over the contract term?
6. Is there a production guarantee?
7. Who pays for repairs and equipment replacements?
8. Is battery replacement included?
9. What happens if solar production is lower than expected?
10. What happens if the roof needs replacement?
11. Can the agreement transfer to a homebuyer?
12. Can I purchase the equipment, and when?
13. Are there early termination fees?
14. Will a UCC financing statement or equipment-related notice be recorded?
15. Which company installs the system and handles service?
16. What utility charges will remain after solar?
17. What happens when the agreement ends?

The answers should be documented in the actual contract rather than based solely on a sales presentation.

Solar PPAs and Leases in Santa Clara and San Mateo Counties

Home Pro Roofing and Solar helps Bay Area homeowners evaluate solar financing, roof condition, battery storage, and installation responsibilities.

We serve homeowners throughout Santa Clara and San Mateo Counties, including the communities listed below.

Whether you are considering a monthly PPA, traditional lease, prepaid arrangement, or direct ownership, our goal is to help you understand the advantages, limitations, and total financial commitment before moving forward.

Why Choose Home Pro Roofing and Solar?

Home Pro Roofing and Solar has served Bay Area homeowners since 2006.

Our combination of roofing, solar installation, battery storage, and solar panel removal and reinstallation services helps homeowners plan these improvements together.

We help homeowners:

• Understand monthly solar PPAs and leases.
• Compare prepaid solar leases and PPAs.
• Evaluate solar ownership and financing alternatives.
• Review roof condition before installing solar.
• Coordinate roofing with solar project requirements.
• Understand the roles of financing providers and installation partners.
• Review battery storage as part of the overall solar decision.

Home Pro's goal is to help homeowners make informed decisions and coordinate the services included in their Home Pro agreements.

Request Your Free Solar Estimate

Frequently Asked Questions About Solar PPAs and Leases

What Is the Difference Between a Solar PPA and a Solar Lease?

A traditional solar PPA generally charges for electricity generated by the system, while a solar lease generally requires scheduled payments for the right to use the equipment. Both typically involve third-party ownership.

Does Home Pro Offer Solar PPAs and Solar Leases?

Home Pro helps homeowners explore available third-party-owned solar programs, including PPAs, solar leases, and prepaid arrangements. Availability depends on the provider, program, and project.

Can I Get Solar With No Money Down in 2026?

Some monthly PPA, solar lease, and loan programs may offer little or no initial payment, subject to program terms and eligibility. The homeowner remains responsible for payments and other obligations specified in the agreement.

Is a Solar Lease Better Than a PPA?

Neither is universally better. A lease generally provides scheduled payments, while a traditional PPA generally uses electricity production-based charges. Compare total costs, escalators, ownership, warranties, and contract terms.

What Is a Prepaid Solar Lease?

A prepaid solar lease is a third-party ownership arrangement where a homeowner makes an upfront payment for the contractual use of the solar equipment. Participate Energy is one prepaid lease provider associated with Home Pro's program options.

What Is a Prepaid Solar PPA?

A prepaid solar PPA is a third-party-owned arrangement in which a homeowner pays upfront under a Power Purchase Agreement rather than making ongoing monthly solar payments. Maxwell Power, formerly HDM Renewable Finance, is one such program provider.

Can I Finance a Prepaid Solar Lease or PPA?

Certain programs permit separate financing of the prepaid amount. Although the prepaid solar agreement may not require monthly payments, the financing loan may require monthly payments and interest.

Can I Claim the Federal Solar Tax Credit With a PPA or Lease in 2026?

Homeowners generally do not claim equipment ownership credits for third-party-owned systems. The former federal Section 25D residential solar credit ended for qualifying expenditures after December 31, 2025. Certain business owners may qualify for separate incentives under applicable rules.

Who Is Responsible for Solar Equipment Repairs?

Responsibility depends on the solar lease or PPA agreement. Third-party providers may cover certain repairs, monitoring, and equipment replacement, but homeowners should confirm the exact coverage and exclusions.

Is Battery Replacement Included in a Solar Lease or PPA?

It depends on the program. Some agreements include battery replacement or maintenance provisions, while others provide limited coverage. Review the contract and equipment warranties.

Can I Buy the Solar Panels After Six Years?

Some prepaid programs offer purchase or transfer options beginning in the sixth year. This is not a universal feature of PPAs or solar leases. The actual contract determines the timing, cost, and conditions.

Can I Sell My House With a Solar Lease or PPA?

Yes, but the agreement may require a transfer, buyout, or other contractual process. Buyer qualifications, provider approval, and fees may apply.

Does a Solar PPA or Lease Eliminate My PG&E Bill?

No. Homeowners generally continue to receive utility bills for electricity purchased from the grid and other applicable charges. Solar generation and battery storage may reduce those costs.

Should I Replace My Roof Before Installing Solar?

If your roof is approaching the end of its useful life, replacing it before installing solar may avoid future removal and reinstallation expenses. Home Pro can help evaluate roofing and solar together.

Who Installs the Solar System?

Home Pro may install solar directly on certain projects. Other programs require approved third-party solar installation companies, potentially including Solar Tech or Axia by Qcells. Installation responsibilities depend on the specific project.

Compare Your Solar Options With Home Pro

Choosing between a solar PPA, solar lease, prepaid agreement, or direct system ownership involves more than comparing monthly payments.

The right decision should account for long-term costs, roof condition, battery storage, ownership, maintenance responsibilities, and future flexibility.

Home Pro Roofing and Solar helps homeowners in Santa Clara and San Mateo Counties understand the available arrangements and coordinate roofing and solar services.

Explore our Solar Installation Services, review our Prepaid Solar Lease and PPA Options, or compare financing alternatives in our Solar Financing Guide.

Serving Santa Clara and San Mateo Counties, California.

Get My Free Solar Estimate