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 Priority Service Register customers of (a) British Gas, (b) EON, (c) nPower, (d) Scottish Power, (e) SSE and (f) the Big Six energy companies have been on their supplier's variable tariff for (i) three years or over, (ii) five years or over, (iii) 10 years or over and (iv) 15 years or over.
Data on customers who are on the Priority Service Register (PSR) is published by Ofgem. However, due to the incompatibility of the data sets, this cannot be linked with the data held by the Department for Business, Energy and Industrial Strategy on the type of tariffs customers are on. For this reason, we cannot calculate the proportion of PSR customers who are on standard variable tariffs.