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

To ask the Secretary of State for Environment, Food and Rural Affairs, pursuant to the answer of 30 June 2025 to Question 57658 on Water Charges, if he will make it his policy to use his powers under the Water Industry Act 1999 to provide directions or regulations to Ofwat that will stop the introduction (a) rising block/progressive water tariffs, and (b) seasonal water tariffs, on family homes.

Innovative approaches are being taken to trial new charges aiming to make bills more affordable and is engaging with industry leaders to drive further progress.

Ofwat called on companies to conduct charging trials aimed at supporting affordability and other sustainability goals such as reducing demand. Ofwat amended their charging rules to make it easier to conduct trials.

Companies can design their charges to provide benefits and incentives in a range of ways. Ofwat regulates charging trials by requiring companies to set fair charges for all customers, and ensure all trials are consistent with good practice principles.

There are several trials taking place, or planned, across all companies between now and 2030. These trials could benefit consumers by making water bills more affordable for more households. Companies must consult with the Consumer Council for Water in developing their trials to ensure that the appropriate safeguards are in place ensuring vulnerable consumers are adequately protected or excluded from the trials.