Big energy switch: was it a failure?

Andrew Milligan/PA Archive/Press Association Images

When Which? announced it was going to shake up the energy market, there were hundreds of thousands of people who were excited enough about the idea to sign up. The idea was that with such large numbers, the group would get energy companies to bid for the chance to provide cheap energy to them.

However, as the auction closed, there are those who say it hasn't been a complete success.