Path-Q Solar

How can I tell whether an installer’s promised completion date is realistic?

Answer

Treat the date as realistic only if it is based on identified dependencies, not just an installation-duration estimate. The schedule should separately account for design, equipment delivery, permits, utility approval, inspections, weather, roof work, and correction cycles.

Key points

  • Ask for milestone dates and the party responsible for each dependency.
  • Confirm whether the date means physical installation, inspection approval, permission to operate, or system activation.
  • Look for written assumptions, buffer time, and a process for schedule changes.
  • Verify that equipment has been selected and its availability is documented.

What it depends on

  • Permit and interconnection timelines
  • Equipment availability
  • Structural, roofing, and electrical scope
  • Installer capacity and weather

Risks and trade-offs

  • A firm-looking date may omit utility approval or inspection, leaving the system unable to operate.
  • Accelerating work can increase coordination errors or result in incomplete documentation.

Information you may need

  • Detailed project schedule
  • Permit and interconnection status
  • Equipment order or availability confirmation
  • Definition of completion and delay remedies

Your next step

What to do next

Request a milestone schedule showing dependencies, responsible parties, contingencies, and the exact event that counts as completion.

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