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 (a) the number of energy companies that have ceased trading over the last two years and (b) the number of customers affected by those cessations; and which companies took on those customers in each case.

There are now over 60 domestic energy suppliers in the market, up from 13 in 2010. There have been 14 domestic energy supplier exits since November 2016, with an approximately 1 million customer accounts affected. The details of what company took them on is publicly available.