Energy & Utilities · Water & wastewater

How a regulated water company earns — the RCV machine

A water and wastewater company is a monopoly utility paid a regulated revenue set by Ofwat at each price review. The building blocks are the same as any regulated network: a return on the Regulated Capital Value (RCV) at an allowed cost of capital, plus recovery of depreciation (RCV run-off) and a totex allowance, adjusted by outcome incentives (ODIs) for leakage, supply interruptions and pollution. The RCV is inflation-linked and grows with investment. The case turns on the size of the RCV, the allowed return, and performance against Ofwat's targets.

£12bn
5.50%
+0.3%
LIVE
Return on RCV allowed return on the capital value Water flow treated & pumped through the network Depreciation & allowances run-off + ODI incentives Operating cost treatment & network totex
Flows — annualised from current assumptionsper year
Revenue p.a.
£0
£0 / hr
EBITDA p.a.
£0
0% margin
EBITDA / RCV
0%
RCV yield
Regulated capital value
£0bn
5.5% allowed return
Stocks — what the flows accumulate intolive
Return on RCV · session
£0
the regulated annuity
EBITDA banked · session
£0
accumulating in real time
Implied enterprise value
£0
at 12× EBITDA
Where revenue comes from Total £0 p.a.
Return on RCV
Depreciation & allowances
Why investors prize water: it is the archetypal defensive utility — an absolute monopoly on an essential service, paid an allowed return on an inflation-linked capital value with virtually no demand risk, which historically supported premium-to-RCV valuations and very high gearing. The value drivers are RCV growth (a huge investment need — mains renewal, storm overflows, new reservoirs — compounds the base) and ODI outperformance. The risks are real and topical: a tough price review can cut the allowed return, and missing outcome targets (leakage, pollution, spills) turns incentives into sizeable penalties.
Revenue streams£0 p.a.
Operating costs£0 p.a.
Investment case — should you buy it?DCF returns

Year-1 financials flow live from the simulation above: revenue £0 and EBITDA £0 p.a. Set your deal terms below — the unlevered IRR (asset return) and levered IRR (return to equity, after debt) recompute instantly.

Operating

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%
%
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Valuation & hold

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×
y

Financing

×
%
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Unlevered IRR
—
asset / project return
Levered IRR
—
return to equity
Equity multiple
—
MOIC over hold
Equity gain
—
exit equity − invested
Equity cash-flow profile£m · ■ invested   ■ returned
Projection — £m per year

Illustrative model. Represents an Ofwat-style regulated water and wastewater company. Allowed revenue is built from regulatory building blocks: a return on the Regulated Capital Value (RCV × allowed return), regulatory depreciation (RCV run-off), a totex allowance, and an outcome-incentive (ODI) adjustment — positive or negative — shown as a percentage of RCV. Operating costs are the company's cash totex opex (modelled to run at the allowance), so EBITDA ≈ return + depreciation + ODIs. The RCV is inflation-indexed and grows with net investment, which the DCF captures through the RCV-growth input; water companies have historically traded at a premium to RCV and carried high gearing. EBITDA = allowed revenue − cash opex; excludes the periodic price-review reset of the allowed return. The investment case is a simplified DCF. For illustration only — not investment advice, and not any specific asset.