Path-Q Solar

How should a business account for lost revenue during a commercial solar installation?

Answer

Treat expected lost revenue, contribution margin, extra labor, temporary relocation, reduced capacity, and customer disruption as installation-period cash-flow costs. Use lost contribution profit rather than gross revenue alone when estimating the financial impact.

Key points

  • Identify which operations will be interrupted, for how long, and at what capacity.
  • Separate lost sales from costs that are avoided during the interruption.
  • Include overtime, temporary facilities, rescheduling, inventory, and mitigation expenses.
  • Model schedule uncertainty and a contingency for delays.

What it depends on

  • Installation schedule and work phases
  • Business operating capacity during construction
  • Contribution margin and customer demand
  • Available mitigation and contingency plans

Risks and trade-offs

  • A short delay can have a large effect for a high-margin or time-sensitive business.
  • Optimistic scheduling can understate interruption costs.
  • Cheaper installation timing may be more expensive if it coincides with peak operations.

Information you may need

  • Detailed installation schedule
  • Revenue, variable-cost, and contribution-margin data
  • Capacity and customer-impact estimate
  • Delay, mitigation, and contractor responsibility terms

Your next step

What to do next

Map installation activities to operating impacts and add base, delay, and mitigation scenarios to the project cash-flow analysis.

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SQ01924