Third-party ownership, usually shortened to TPO, means a solar provider owns the panels and related equipment installed at the home. The homeowner uses the electricity the system produces under an agreement such as a power purchase agreement, solar lease or prepaid structure. TPO describes ownership; the agreement describes payment, responsibilities and future options.
Ownership and payment are separate questions
The most important starting point is to separate who owns the equipment from what the homeowner pays for. A provider-owned system may use a per-kilowatt-hour PPA payment, a recurring lease payment or a prepaid arrangement. The ownership framework can stay the same while the payment method changes.
What provider ownership may include
The agreement should state who monitors, services, insures and repairs the system, as well as what happens during roof work, a home sale or a transfer. Provider ownership does not make solar free. It replaces the traditional complete system purchase with a long-term agreement whose price and responsibilities must be understood.
How to evaluate a TPO proposal
Review the starting price, annual escalation, agreement length, estimated production, utility-bill assumptions, transfer process, purchase options and end-of-term choices together. A low first payment is only one part of the decision. The complete agreement determines the long-term fit.
What to confirm before you move forward
- ✓Identify the legal owner of every major component
- ✓Confirm whether payment is based on production or equipment use
- ✓Read the service, roof-work and transfer provisions
- ✓Understand every annual price change
- ✓Ask when purchase options become available
What homeowners ask next
Is every PPA a TPO agreement?+
Yes. A PPA normally involves a provider-owned system, making it one form of third-party ownership.
Is every TPO agreement a PPA?+
No. Solar leases and prepaid provider-owned structures can also be forms of TPO.
Does TPO mean free solar?+
No. It means the provider owns the equipment. The homeowner still enters an agreement with defined payments and terms.
For current rules and consumer information, use official sources and review the exact agreement offered for your home.