GOUCAP
Technical guide

How to evaluate an infrastructure project

A practical framework for connecting engineering, operations, funding and risk in a defensible investment decision.

Infrastructure evaluation is not only about calculating NPV and IRR. It builds a verifiable bridge between the physical asset, implementation, expected operations, capital structure and uncertainties that may change the decision.

1. Start with the decision and perimeter

Define the decision, decision-makers, valuation date and the assets, obligations and cash flows inside the perimeter. Otherwise, correct numbers may answer the wrong question.

2. Build an evidence and assumptions register

Separate documented facts, technical estimates, commercial assumptions and scenario hypotheses. Record source, date and owner for each material variable.

3. Integrate the operating and financial model

Capacity, availability, ramp-up, volume, price, costs and taxes should feed coherent statements and cash flows. The model must support reconciliation, not merely output results.

4. Address CAPEX, schedule, ramp-up and demand

Delay, cost overrun and under-utilisation often destroy more value than small discount-rate changes. Model implementation and maturation explicitly.

5. Test the funding structure

Analyse drawdowns, grace periods, amortisation, interest, reserves, covenants and debt-service coverage. Economic value and bankability are related but distinct questions.

6. Use scenarios, sensitivities and downside

Sensitivities isolate variables; scenarios combine coherent narratives. Avoid adding incompatible shocks and identify which assumptions actually change the decision.

7. Deliver an investment-committee answer

The output should present recommendation, conditions, value, major risks, review triggers and diligence actions — not merely a large spreadsheet.

8. State limits and next steps

No model eliminates uncertainty. Identify gaps, external dependencies and additional tests so the conclusion remains proportionate to available evidence.

Committee checklist
  • Decision and valuation date defined
  • Physical and financial perimeter reconciled
  • Assumptions sourced and owned
  • CAPEX and schedule phased
  • Ramp-up and demand tested
  • Funding and coverage modelled
  • Coherent downside case
  • Limits and next steps explicit
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This content is informational. Scope, assumptions and conclusions depend on the documentation and specific context of each decision.

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