Path-Q Solar

What project milestones should be included in a solar installation schedule?

Answer

A useful schedule should cover contract and site verification, final design, financing, equipment ordering, permitting, utility interconnection, installation, inspection, system commissioning, permission to operate, monitoring setup, and final payment or closeout.

Key points

  • Include an estimated date, responsible party, and completion evidence for each milestone.
  • Show dependencies between design, permits, equipment, installation, inspection, and utility approval.
  • Include homeowner decisions such as access, roof work, electrical upgrades, and financing documents.
  • Define what must be complete before each payment.

What it depends on

  • System size and design complexity
  • Required permits and utility approvals
  • Equipment availability
  • Site access and any roof or electrical work

Risks and trade-offs

  • A schedule without approval and commissioning milestones may make an apparently complete installation unusable.
  • Estimated dates can be mistaken for guaranteed deadlines.
  • Final payment before testing and documentation reduces leverage to resolve defects.

Information you may need

  • Project-specific scope of work
  • Approval and inspection requirements
  • Payment schedule
  • Contractual completion and delay provisions

Your next step

What to do next

Ask each installer to provide a milestone schedule that links every payment to objective completion evidence and includes a final handover package.

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SQ00341