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

To ask the Secretary of State for Business, Energy and Industrial Strategy, what estimate his Department has made of the number of energy customers who are currently on standard variable tariffs; and if he will make a statement.

The Department for Business, Energy and Industrial Strategy estimates of customers on variable tariffs are shown in the table below.

Estimates are produced from a survey of the largest energy suppliers, which covers around 83% of the market. This survey collects information on customer numbers by tariff, and BEIS categorises the data as either fixed or variable based on the tariff name supplied. The estimates for variable tariffs shown will also include some customers on non-standard variable tariffs.

This data is published as part of the quarterly energy price (QEP) statistics which can be found here: https://www.gov.uk/government/statistical-data-sets/quarterly-domestic-energy-price-stastics.