Path-Q Solar

How can I tell whether a solar installer has provided enough information for me to decide?

Answer

You have enough information to decide only when the proposal clearly identifies the system design, expected production, complete price and payment terms, assumptions, warranties, ownership obligations, schedule, and what happens if conditions or performance differ from the proposal.

Key points

  • The design should show equipment, array locations, orientation, shading assumptions, estimated production, and expected system size.
  • The financial section should distinguish cash price, financing cost, fees, payments, exclusions, and any variable charges.
  • The contract should explain performance expectations, workmanship and equipment warranties, monitoring, maintenance, cancellation, roof work, and change orders.
  • The installer should identify permitting, utility coordination, construction responsibilities, and the expected timeline.

What it depends on

  • Complexity of the property and electrical system
  • Whether storage, backup, roof work, or multiple buildings are included
  • Contract and financing terms
  • Quality and completeness of production and cost assumptions

Risks and trade-offs

  • A low headline price may omit needed electrical, roof, permitting, or interconnection work.
  • Production estimates are forecasts, not guarantees, unless the contract provides a clearly defined remedy.
  • Long contracts or financing documents can contain obligations not visible in a sales summary.

Information you may need

  • Detailed system layout and equipment list
  • Production model and assumptions
  • Complete contract, cash price, financing documents, and exclusions
  • Warranty and service terms
  • Permitting, interconnection, schedule, and change-order responsibilities

Your next step

What to do next

Use a written checklist to compare proposals and do not sign until unresolved assumptions, exclusions, payment obligations, and performance responsibilities are explained in writing.

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