Path-Q Solar

What contract terms should address who pays for utility-required design changes?

Answer

The contract should assign responsibility for utility-required redesign, engineering, equipment changes, application revisions, inspections, and resulting delays. It should distinguish changes caused by the installer's incomplete or inaccurate design from changes imposed by the utility despite a compliant design, and require written approval before the homeowner incurs additional cost.

Key points

  • Define whether the quoted price includes utility review, revisions, and resubmission.
  • State who pays for changes caused by installer error or failure to disclose known requirements.
  • Set a cap, allowance, or customer approval process for genuinely unforeseeable utility changes.
  • Address cancellation or refund rights if the required design is no longer acceptable.

What it depends on

  • The utility's interconnection requirements and review process
  • The completeness of the initial electrical and system design
  • The contract's change-order, delay, and termination provisions

Risks and trade-offs

  • An unlimited change-order clause can shift nearly all uncertainty to the homeowner.
  • A firm-price commitment may cause an installer to add contingency pricing.
  • Ambiguous responsibility can delay approval while the parties dispute payment.

Information you may need

  • The utility application and any preliminary technical requirements
  • A detailed scope of design and engineering services
  • The proposed change-order and termination language

Your next step

What to do next

Request a contract clause that assigns cause-based responsibility and requires written customer approval for any utility-related price increase.

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