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

To ask Her Majesty's Government whether Ofwat has calculated the levels of water efficiency savings that were made in the non-household water retail marketplace in (1) 2018, and (2) 2019.

Ofwat makes an annual Request for Information to retailers, concerning their activities in the business retail market. This includes a request for information and data concerning water efficiency and the extent to which business customers have saved water as a result of water efficiency measures.

Business customers who have elected to become ‘Self-suppliers’ – generally large consumers of water - reported significant water efficiency savings in 2019. Eight self-suppliers, for example, reported saving around 567Ml in 2019 - approximately 5% of their 2019 consumption.