Water
Structural audit for water and wastewater utility and concession models
The modelling risk
- Water and wastewater concession and utility models typically combine regulated tariff mechanics with long-dated asset and debt schedules, so a broken link between the tariff calculation and the debt sculpting formula can misstate covenant headroom for the life of the concession.
- Capex programmes phased over multi-year regulatory periods introduce circular references between the capex schedule, the regulated asset base, and the tariff reset, a structure that is difficult to test manually with confidence.
- A regulator, lender, or investment committee relying on a sponsor-submitted model did not build the model it is being asked to approve or finance.
How OXXON tests it
The engine applies the same deterministic structural rules to a water or utility model as any other project finance structure — circularity, debt-sculpting, and cross-sheet consistency are tested directly against the model's own formulas.
Relevant modules
OXXON Audit
liveDeterministic structural verification for Excel financial models — a scored risk memo with evidenced findings, in seconds, not weeks.
Run it now →OXXON VERIFY
liveIndependent institutional verification: every figure within scope checked against the registered rule pack, every finding evidenced, nothing inferred.
Run it now →Run a structural check on a model in this sector.