Ask a Claremont seller what is on the roof and you will often hear the phrase 'the solar lease.' Ask for the document and it turns out to be a POWER PURCHASE AGREEMENT, which is a different animal wearing the same panels. The distinction rarely matters to the person living in the house. It matters a great deal to the person buying it, because a PPA is written, transferred, and underwritten on its own terms. This article takes the PPA apart from the buyer's side. It deepens the solar guide; the ownership map that puts a PPA in context is the owned-versus-leased guide.
A PPA sells electricity, not equipment
Under a lease, the homeowner pays for the USE of a solar system a provider owns. Under a power purchase agreement, the homeowner buys the OUTPUT of a solar system a provider owns, and pays for it by the unit of electricity produced. In both arrangements the equipment belongs to a third party. What differs is what the monthly obligation is attached to: a fixed right to use hardware in one case, a metered quantity of generated power in the other.
That difference has a practical consequence a buyer should understand before it surprises them. Under a PPA, the bill moves with production. A cloudy stretch, a shaded array, an inverter that quietly stopped reporting, a panel string that came offline after a windstorm - each shows up as a smaller generation bill and, at the same time, a larger utility bill. Under a lease, the payment usually does not move; only the utility side does. Neither structure is better in the abstract. They simply behave differently, and a buyer reading a stack of past bills should know which document those bills came from.
Where the PPA shows up in the transaction file
A PPA is a contract, and like any long-term contract secured by hardware attached to a house, it leaves traces in places a buyer will actually see. Expect it in three places, and treat a gap in any of them as a question rather than a shrug.
First, the SELLER'S DISCLOSURES. A third-party agreement affecting the property is squarely disclosable, and a seller who lists it plainly - provider, remaining term, structure, transfer requirements - has done the buyer a favour. Second, the PRELIMINARY TITLE REPORT. Providers commonly record a fixture filing so the world knows the equipment on the roof is theirs and not the homeowner's. Third, the AGREEMENT ITSELF, which nobody can summarise well enough to substitute for reading. If the seller cannot produce the full signed document, the provider can, and a buyer who removes contingencies without having read it has taken a real risk with a document that will govern years of their life.
The provisions that decide the deal
Every PPA is its own text, so nothing here is a description of your particular contract - it is a list of what to go looking for in it. The REMAINING TERM: how many years are left, and what happens at the end of them. The RATE STRUCTURE: what the homeowner pays per unit of production, and whether the agreement contains an escalation provision that raises that figure on a schedule. The buyer's question is not whether an escalator exists in the abstract, it is what THIS agreement says and how it compares to what the utility would have charged for the same power - a comparison that requires current utility rate information, which only the utility and the homeowner's own bills can supply.
Then the TRANSFER provisions: whether the agreement may be assigned to a buyer, what the provider requires to approve that assignment, and how long the provider's process runs. Then the BUYOUT or purchase option: whether the homeowner may purchase the system, when, and on what terms. Then the END-OF-TERM options: renewal, purchase, removal, and who pays for removal if that is the path taken. Then the PERFORMANCE and MAINTENANCE terms: who repairs the system, who monitors it, and what remedy the homeowner has if production falls short of what the agreement promised. Every one of those answers lives in the contract's actual language, and every one of them is a question for the provider and, where the language is consequential, for the buyer's own attorney.
Assumption is a separate approval
The most common path for a PPA at sale is ASSUMPTION: the buyer takes over the agreement through the provider's formal process. That process is not part of escrow and is not controlled by escrow. It typically involves the buyer applying to the provider, a review of the buyer that may include credit, and paperwork executed on the provider's timeline rather than the transaction's. It works routinely when it is started early, and it is one of the most reliable ways to run a Claremont deal late when it is not - which is why the sequencing gets its own treatment in the escrow transfer guide.
A buyer's job here is simple and unglamorous: contact the provider early, ask what assumption requires and how long it takes, and get that answer before the contingency period is spent. A buyer who is not comfortable assuming the agreement should say so in the offer rather than in week three, because that is a term to be negotiated, not a discovery to be made.
What a PPA does to appraisal and financing
Because the equipment belongs to a provider, a PPA system is generally not the buyer's real property and generally does not carry the appraisal treatment an owned system does. That is not a criticism of PPAs; it is a description of what is being bought. A buyer who prices a listing as though the array were an included improvement has paid for something the title does not convey.
On the financing side, a lender looks at the PPA payment as an ongoing obligation attached to the property, and lenders also read the agreement for terms that could affect their collateral - fixture filings, remedies on default, and removal rights among them. None of that is disqualifying. It does mean the agreement should reach the lender early rather than late, because a document nobody has read is the thing that moves a closing date.
Making the decision, not avoiding it
A PPA is neither a red flag nor a bonus. It is a contract that comes with the house and that the buyer will live inside for years. The workable posture is the same one that serves on every other contractual feature of a property: get the document, read the provisions above, call the provider with specific questions and write down the date of the answers, price the arrangement honestly in the offer, and take contractual language that carries real consequences to a lawyer rather than to a forum. Do that inside the investigation period and a PPA is an ordinary term. Do it afterwards and it is an emergency.
For the wider map, return to the solar guide; for the triage that comes before any of this, the buyer's first questions are the place to start. Utility rate and program questions belong with the utility; contract questions belong with the provider and with counsel. Anthony Grynchal has been licensed in California since November 2009.
Frequently asked questions
What is the difference between a solar lease and a PPA?
Under a lease the homeowner pays for the use of equipment a provider owns. Under a power purchase agreement the homeowner buys the electricity that equipment produces, so the payment moves with production. In both cases the hardware belongs to a third party and is not the homeowner's property.
Do I have to take over the seller's PPA?
Not automatically. Assumption is the common path, but it is a term of the deal like any other. A buyer can negotiate for a buyout, a credit, or another resolution. What a buyer should not do is leave the question unaddressed until late in escrow.
Does a PPA show up on the title report?
Providers commonly record a fixture filing that appears on the preliminary title report. Its presence is normal for third-party owned solar. Read it, ask escrow what it covers, and match it against the agreement the seller disclosed.
Will an appraiser give value for a PPA system?
Because the equipment belongs to the provider rather than to the property, a PPA array is generally not treated the way an owned system is. Specific appraisal treatment is the appraiser's call on the individual assignment.
Who do I ask about the rate I would pay under a PPA?
The provider, for the agreement's rate and any escalation provision, and the utility, for what the equivalent grid power would cost. Rates and utility programs change, so treat any figure as dated the day you receive it and confirm it in writing.

Written by
Anthony Grynchal
Anthony Grynchal is a California real estate professional with eXp Realty, licensed since November 2009 (California DRE# 01873626), and the Designated Local Expert™ for Claremont — where he has lived for more than 33 years.
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