Availability-Based Payments

Energy & Infrastructure Economics

Definition

Availability-based payments are periodic payments from a public authority or other grantor to the private owner of an infrastructure asset, such as a road, transmission line or hospital, for making the asset available to agreed standards. Payment does not depend on how many people or how much power use the asset, so the owner does not bear demand risk; instead, payments are reduced when the asset is unavailable or falls short of performance standards. Ferrovial describes them as the alternative to tolls 'if there is no demand risk.'

Why it matters

Availability-paid assets offer revenue that behaves more like a long government contract than an operating business, which is why they support high levels of debt. For investors the key questions shift from demand forecasts to the payment formula, the deduction regime and the grantor's credit; a road or line that is fully used still earns nothing extra, and one that is closed for repairs can lose payments.

Common misconceptions

  • •Availability payments are not unconditional; deductions apply for unavailability and poor performance.
  • •No demand risk does not mean no risk; the grantor's credit and budget decide whether payments arrive.
  • •Higher usage does not raise revenue under a pure availability scheme.
  • •The label is only a starting point. Investor outcomes usually depend on the governing documents, cash-flow priority, valuation policy, disclosure quality, and manager discretion surrounding the term, not just the shorthand definition used in marketing materials.

Technical details

How a payment is typically built

A base payment set at award, often indexed to inflation.

Deductions for periods when parts of the asset are unavailable or fail service standards.

Adjustments for agreed changes in scope.

Handback of the asset to the public sector at the end of the term.

Accounting signal

Ferrovial accounts for concessions where the grantor bears demand risk, guaranteeing specific amounts, as a financial asset (an amount receivable), rather than an intangible right to collect tolls.

How investors apply the term

Investors usually apply this term by tying the definition back to the controlling documents and then asking which cash flows, rights, restrictions, or valuation assumptions it changes. A useful review looks at the term alongside fees, leverage, liquidity, reporting frequency, and manager discretion rather than treating it as a standalone concept.

The practical diligence test is simple: identify who benefits if the assumption is wrong, who has control when conditions change, and what evidence the investor receives after closing. Terms that cannot be reconciled to documents, cash movements, and monitoring data should be treated as marketing shorthand until proven otherwise.

Frequently asked questions

How are availability payments different from tolls?
Toll revenue rises and falls with traffic; availability payments do not. Ferrovial's 2025 annual report describes concession revenue as tolls, shadow tolls paid by the grantor, 'or availability payments if there is no demand risk.'
Where are they used in energy?
In transmission. Ferrovial says its Chilean transmission lines 'are not subject to demand risk ... since they are subject to availability payment, a means to compensate private parties for designing, constructing, operating and maintaining a facility,' set under Chile's electricity law and the award decree.
What risks remain?
Performance deductions if the asset is unavailable, the grantor's ability to pay and to budget the payments, and contract terms that can change payments or end the concession early.

Related Terms

See in context