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Find the workflow, evidence and engineering guidance for turning an existing PV site into a better decision.

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Read a financial result

Interpret cash flow, NPV, IRR and payback together with their scope and evidence.

Start with scope

  • Incremental case or whole asset.
  • Real or nominal money and valuation date.
  • Pre-tax or post-tax; levered or unlevered.
  • Existing PV revenue included or excluded.
  • Ownership, lease and pass-through assumptions.

Use more than one metric

NPV measures value at the stated discount rate. IRR can be absent or non-unique for unusual cash-flow signs. Payback ignores later cash flows. Review the annual cash-flow table, sensitivities and evidence gaps alongside headline metrics.

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