Where can I find the allowed returns and RAB set by infrastructure regulators?
Regulators publish allowed returns, allowed revenues, and regulated asset bases in determination documents that run to hundreds of pages — and no two regulators publish them the same way. Concessio structures these determinations into comparable rows: metric, value, period, and basis, each citing the determination document itself.
Last updated: July 2026
Analysts covering regulated infrastructure hand-collect the same numbers over and over: the allowed return from one regulator's final determination, the RAB from another's price review, the tariff order from a third — each buried in a different document format, quoted on a different basis, for a different period.
Concessio's regulatory determinations layer does that collection once, structurally.
Concessio's regulatory determinations layer does that collection once, structurally: allowed returns, allowed revenues, regulated asset bases, and regulated tariffs, normalized into rows with the metric, value, period, and real-versus-nominal basis captured, and the determination document cited on every row.
Coverage spans regimes including Ofwat and Ofgem in the United Kingdom, ARERA in Italy, ANEEL in Brazil, and India's port tariff authorities, with the regime list growing.
Regulated-asset investors use it to compare allowed returns across regulators and periods; M&A teams use it to frame regulated comps; strategy teams use it to watch reset cycles.
Frequently asked questions
- Which regulators does Concessio cover?
- Regimes including Ofwat, Ofgem, ARERA, ANEEL, and India's port tariff authorities, among others — the list grows continuously.
- Does Concessio distinguish real from nominal returns?
- Yes. Each determination row captures the basis alongside the value and period.
- What is the source for each number?
- The regulator's own determination document, cited on the row.