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

To ask the Secretary of State for Business, Energy and Industrial Strategy, what recent estimate he has made of the (a) number and (b) proportion of people in Torfaen constituency who are customers on the poorest value energy tariff.

The Department for Business, Energy and Industrial Strategy (BEIS) run a quarterly survey of domestic electricity and gas suppliers. This survey has coverage of around 85 per cent of the market. Data is supplied to BEIS, on numbers of customers by tariff, by region, and by payment type, but as this data is supplied in confidence, individual tariff or company data cannot be made publically available.

Aggregate statistics are produced and published as part of our quarterly energy prices (QEP) publication. In quarter 1 2017, we estimate 66 per cent of standard electricity and 65 per cent of gas customers were on variable tariffs. Our current methodology does not breakdown standard variable tariffs from other variable tariffs or by constituency. Data can be found here: https://www.gov.uk/government/statistical-data-sets/quarterly-domestic-energy-price-statistics