Path-Q Solar

What should I do if my solar installer changes the equipment after I sign the contract?

Answer

Do not assume the substitution is harmless or accept it informally. Compare the proposed equipment with the contract, require a written explanation of the reason and performance impact, and check the contract's approval, cancellation, price-adjustment, warranty, and change-order terms before agreeing.

Key points

  • Verify model, ratings, compatibility, warranty, availability, and expected production.
  • Ask whether the substitution changes system capacity, monitoring, safety features, appearance, or eligibility for any program.
  • Keep all communications and do not sign revised documents until the changes are understood.
  • If the change is material or disputed, obtain independent advice and use the contract's formal dispute process.

What it depends on

  • Exact contract language and approved equipment schedule
  • Whether the proposed change is equivalent or materially different
  • Price, performance, warranty, and delivery effects
  • Applicable consumer-protection and contract rules

Risks and trade-offs

  • A substitute may be technically compatible but have different performance, warranty, or service characteristics.
  • Refusing a substitution may delay the project, while accepting it may reduce contractual leverage.
  • Legal rights and cancellation remedies depend on the agreement and applicable jurisdiction.

Information you may need

  • Signed contract and equipment schedule
  • Original and proposed model numbers
  • Written explanation and revised production estimate
  • Warranty and price comparison
  • Any applicable cancellation or dispute deadlines

Your next step

What to do next

Send a written request for the proposed change, its full technical and commercial impact, and the contractual basis for it; seek local contract or consumer advice before consenting if the change is material.

Path-Q

Find the right next step

Answer a few questions and we’ll narrow your options.

Loading…

Some details may depend on your location, installer, utility, incentives, regulations, or specific property.

SQ01104