PPA vs Rent-to-Own for Solar: Which Structure Fits Your Client?

A power purchase agreement and a rent-to-own arrangement both let a client put solar on the roof without paying cash upfront. They are very different deals underneath, though, and choosing wrong can cost a client money or stall the proposal. This guide sets the two side by side so you can match the structure to the client in front of you.

For a full view of every structure available, see solar finance structures compared.

What is a solar PPA?

A solar PPA, or power purchase agreement, is a contract where the client buys only the electricity the system generates, usually over 10 to 20 years.

The client puts in no capital. A provider funds, owns and maintains the system, and the client pays a tariff per unit of energy used, typically lower than the grid rate. There is no asset on the client's balance sheet during the term.

A PPA suits clients who:

• Do not want to spend capital on equipment.
• Prefer to treat solar as an operating cost, not an asset.
• Want someone else to carry the performance and maintenance risk.
• Value a long, predictable term over eventual ownership.

What is rent-to-own solar?

Rent-to-own is a structure where the client pays a fixed monthly amount over 5 to 15 years and owns the system at the end of the term.

It behaves like a longer, gentler version of a loan. Because the term is longer than typical asset finance, the monthly payment is lower, which helps clients whose main constraint is monthly cash flow rather than the desire to own.

Rent-to-own suits clients who:

• Want to own the asset eventually.
• Need a lower monthly payment than a 3 to 7 year loan would give.
• Are comfortable carrying the system on their books over time.

How do the monthly costs compare?

The monthly cost depends on term and ownership, and the two structures pull in different directions.

• A PPA charges per unit of energy, so the bill flexes with how much the system produces and the client consumes. There is no fixed instalment for hardware.
• Rent-to-own charges a fixed monthly instalment regardless of production, spread over a long term to keep it affordable.

As a rule of thumb, a PPA removes capital risk and ties cost to actual energy, while rent-to-own gives a predictable instalment and an owned asset at the end. Neither is cheaper in every case. It depends on consumption, term and what the client values.

Which structure has the better tax treatment?

Ownership drives the tax outcome, and this is where the two diverge most.

Under rent-to-own the client is moving towards ownership, and structures where the client owns the qualifying asset can unlock the Section 12B accelerated deduction. With a PPA the client never owns the system during the term, so the 12B deduction sits with the asset owner, not the client.

If the tax deduction matters to the client, ownership-based structures are usually stronger. We cover the detail in the Section 12B solar tax deduction. Always confirm the position with the client's own tax adviser, because eligibility depends on the specifics of the asset and the agreement.

When should an installer recommend each one?

Recommend based on what the client values most: zero outlay and no asset, or eventual ownership at a manageable monthly cost.

Lean towards a PPA when:

• The client wants no capital outlay and nothing on the balance sheet.
• They prefer to pay only for energy used.
• A long 10 to 20 year horizon is acceptable.

Lean towards rent-to-own when:

• The client wants to own the system in the end.
• A lower monthly payment matters more than the shortest possible term.
• The tax deduction from ownership is attractive.

If the client wants ownership quickly and can carry a higher instalment, asset finance over 3 to 7 years may beat both. Offering all three on a single quote is what helps installers close more deals, which we cover in how EPCs win more deals with finance.

How does the client choose and apply?

The client does not have to commit to a structure before seeing the numbers. Both routes start with an indicative proposal showing the likely shape of the deal.

The flow is the same either way:

1. You propose and the client accepts an indicative proposal.
2. The installer is onboarded with the relevant lenders.
3. The client completes a guided, step-by-step finance application.
4. The deal is prequalified and KYC-checked, then packaged for the funder.
5. Offers come in, the client selects one and the contract is drafted.

You can run a client through both options at no cost. Sign up free and put a PPA and a rent-to-own side by side on the same deal.

All figures in a proposal are indicative only and not a credit offer. The lender or provider does the formal underwriting.

Frequently asked questions

Does the client own the solar system in a PPA?

No. Under a PPA the provider owns and maintains the system for the term, and the client pays only for the energy produced. Ownership may transfer or the system may be removed at the end, depending on the agreement.

Is rent-to-own cheaper than a PPA?

Not always. Rent-to-own gives a fixed instalment and an owned asset, while a PPA ties cost to energy used with no capital risk. The cheaper option depends on consumption, term and whether the client values ownership and the tax deduction.

Can a client switch from a PPA to ownership later?

It depends on the specific agreement. Some PPAs include a buyout or transfer at the end of the term. Confirm the buyout terms before signing if eventual ownership matters to the client.

Which structure is better for tax?

Ownership-based structures such as rent-to-own and asset finance can unlock the Section 12B deduction because the client owns the qualifying asset. In a standard PPA the deduction sits with the asset owner, not the client.