Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what proportion of domestic energy consumers switched tariff in each of the last three years; and what proportion of those consumers were switching from standard variable tariffs to fixed rate tariffs.

Data is published by the Department for Business, Energy and Industrial Strategy (BEIS) on switching. The data is collected by Ofgem and republished by BEIS in Table 2.7.1 of which can be found online (https://www.gov.uk/government/statistical-data-sets/quarterly-domestic-energy-switching-statistics ).

The number of domestic energy supplier switches as a proportion of total customer numbers in Great Britain is as follows:

This is calculated by combining all switches made within the year, divided by the total domestic customers. Multiple switches made by the same customer within each year are counted as separate switches. The number of customer switching from standard variable to fixed rate tariffs is not collected or held by BEIS.