On 15 October 2015, Ofgem announced an investigation to look at whether some price comparison websites have breached competition law in relation to paid online search advertising.
For the avoidance of doubt, this investigation does not affect consumers' ability to use switching sites to get the best energy deal.
The fact that we have opened this investigation does not mean there has been a breach of competition law.
On 13 June 2016, Ofgem decided to transfer the investigation to the Competition and Markets Authority (the CMA). Read our decision below.