Question to the Department for Environment, Food and Rural Affairs:

To ask His Majesty's Government how Ofwat adjusted the regulatory capital value of each water company to take account of (1) capitalisation of interest payments, and repair and maintenance costs, and (2) intragroup debt and interest payments.

The Regulatory Capital Value (RCV) of a water company represents the net stock of investment that has been contributed by debt and investors over time in delivering their investment activities. This is used by Ofwat for the purposes of setting its regulatory determinations.

Ofwat calculates an efficient totex (total expenditure) allowance for each company, covering operating, maintenance, and enhancement costs. Totex is funded in one of two ways; pay-as-you-go expenditure funded through revenue allowances, or long-term investment funded through the RCV and run-off from the RCV over time. Pay-as-you-go expenditure generally reflects forecast operational costs. Capital costs are generally added to the RCV, with the RCV run-off allowance providing companies with a funding allowance for carrying out activities such as maintenance.

As the RCV represents only the net stock of investment for delivering investment activities, it takes no account of intragroup debt and interest payments. Ofwat set the allowed return for companies on the basis of a notional capital structure which makes no assumption about the need for intragroup debt and interest payments. Where such arrangements exist, these arrangements are not funded in the determinations that are set by Ofwat and are matters for companies and their investors.