Path-Q Solar

What happens if the utility requires a different interconnection design after the solar contract is signed?

Answer

The project may need redesign, added equipment, changed export limits, a service upgrade, or cancellation if the contract permits it. Responsibility for cost and schedule depends on the solar contract, change-order terms, interconnection application, and utility requirements.

Key points

  • Utility approval is often separate from the sales contract and may occur after signing.
  • A revised design can affect system size, production, price, financing, and incentives.
  • The contract should state who bears interconnection-study, upgrade, redesign, and cancellation costs.
  • Get the revised design and financial effect in writing before authorizing extra work.

What it depends on

  • Contract contingencies and change-order provisions
  • Utility interconnection determination
  • Nature and cost of the required design change
  • Financing, incentive, and cancellation terms

Risks and trade-offs

  • The customer may face unexpected charges or a less productive system.
  • Delaying a decision can affect installation timing and incentive eligibility.
  • Accepting an undocumented change makes later disputes harder to resolve.

Information you may need

  • Signed contract and all attachments
  • Utility study results or written design requirement
  • Revised scope, price, schedule, production estimate, and financing terms

Your next step

What to do next

Pause approval of additional work and request a written change order that explains the utility requirement, cost allocation, schedule, and cancellation rights.

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

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