Path-Q Solar

How can I verify that the equipment listed in a solar quote will actually be installed?

Answer

Require the equipment make, model, quantity, and key specifications to appear in the signed contract or final design, with substitutions prohibited or subject to your written approval. Verify delivered labels and installed equipment before final payment and retain serial-number records.

Key points

  • Compare the quote, contract, approved design, delivery documents, and installed labels.
  • Require written notice of any substitution and define whether it changes price, performance, warranty, or schedule.
  • Record model numbers and serial numbers for panels, inverters, batteries, and major equipment.
  • Make final acceptance conditional on receiving the agreed equipment and documentation.

What it depends on

  • The precision of the equipment schedule
  • Substitution and change-order clauses
  • Equipment availability
  • Inspection access and final documentation

Risks and trade-offs

  • A substitute may be equivalent in one specification but different in warranty, compatibility, appearance, or performance.
  • A vague description makes later verification difficult.
  • Refusing all substitutions can increase delay if supply changes occur.

Information you may need

  • Signed equipment schedule
  • Permitted-substitution criteria
  • Change-order and price-adjustment terms
  • Serial numbers and final as-built documents

Your next step

What to do next

Ask the installer to attach a detailed equipment schedule to the contract and plan a pre-final-payment check of installed labels and serial numbers.

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