Solar Due-Diligence Checklist for California Buyers
By JC Pacific Corp Published 2026-09-01 Last professionally reviewed: September 2026
Before buying a solar home, verify ownership, debt, contract terms, equipment, production, utility billing, permits, roof condition, insurance, title, and transfer requirements.
1. Identify the arrangement
- Owned outright
- Solar loan
- Lease
- Power purchase agreement
- PACE assessment
- Builder-owned system
- Community-solar subscription
- Battery financing
2. Review financial obligations
- Current payment
- Interest rate
- Escalator
- Remaining term
- Payoff
- Buyout
- Prepayment
- Transfer fee
- Credit approval
- UCC filing
- Property-tax assessment
- Default provisions
3. Review system performance
- System size
- Annual production
- Recent production reports
- Utility bills
- Export credits
- Current tariff
- Shading
- Equipment faults
- Monitoring access
- Battery operation
- Degradation
4. Review the property
- Roof age
- Roof condition
- Panel penetrations
- Permit
- Final inspection
- Interconnection
- Permission to operate
- Fire setbacks
- Electrical panel
- Insurance
- HOA approval
5. Plan the transfer
- Provider forms
- Utility account
- Lender approval
- Escrow instructions
- Title requirements
- Payoff timing
- Monitoring credentials
- Warranty transfer
- Final seller payment
- Written completion confirmation
Frequently Asked Questions
Is 'paid solar' enough information?
No. Obtain proof of ownership and payoff.
Should buyers compare projected production with actual production?
Yes.
Can the buyer cancel after discovering an unwanted lease?
Rights depend on the purchase agreement and contingencies.
Educational information
This content is for general educational purposes and is not legal, tax, appraisal, lending, electrical, engineering, construction, insurance, investment, utility-rate, zoning, architectural, or solar-production advice. California ADU laws, local ordinances, permit requirements, utility rules, tax provisions, solar programs, and financing standards change frequently. Consult appropriately licensed legal, tax, lending, insurance, appraisal, real estate, architectural, engineering, electrical, solar, and construction professionals regarding a specific property.
Our California real estate team can help buyers organize solar contracts, utility records, permits, title questions, lender documents, and professional referrals. We do not guarantee solar production, savings, transfer approval, or tax treatment.
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The next step is a conversation with a local agent.
JC Pacific Corp is an Irvine-based Southern California brokerage helping buyers navigate offers, escrow, and financing. Tell us what you are looking for and we will point you to current options across the region.
A note on legal advice: These guides provide general, educational information about California real estate practice. They are not legal advice and do not create an attorney-client relationship. Mortgage information is general education, not individualized lending, tax or legal guidance. For advice about your specific offer, contract, closing or financing, consult a qualified California real estate attorney and a qualified mortgage professional.
A note on these solar and ADU guides: These articles provide general, educational information about California solar systems, PACE assessments, and accessory dwelling units. They are not legal, tax, appraisal, lending, electrical, engineering, construction, insurance, investment, utility-rate, zoning, architectural, or solar-production advice. A PACE assessment is an obligation repaid through a property-tax-bill assessment, not an ordinary solar loan, and California's active-solar property-tax exclusion is not permanent. No article guarantees solar production, savings, contract transfer, ADU value, or rental income. An address, a tax record, or an MLS listing never proves that an ADU is legal, and an unpermitted unit generally does not become legal through age or continued use. Verify current ADU law, local ordinances, permit requirements, utility rules, tax provisions, solar programs, and lending standards at publication time and again before any future update or transaction. Buyers and owners can request brokerage assistance in English, Simplified Chinese, and Traditional Chinese.