Ann Robinson, Director of Consumer Policy at uSwitch, says it's hard to know how much companies are paying for their energy which makes it difficult to work out if consumers are getting a fair deal.
More top news
A man has been arrested under the Psychoactive Substances Act 2016, less than 24 hours after it came into force, banning 'legal highs'.
Dozens of people are feared to have died after a migrant boat capsized in the Mediterranean off the Libyan coast.
Andrew Nay smashed into a family's car with his 4x4 during a road rage chase leaving two young sisters paralysed, a court heard.