"Something has gone really wrong" in the UK energy market and Parliament has to "tackle that", the shadow energy secretary told Daybreak.
Labour's Caroline Flint said a 46% drop in the wholesale price which was not passed onto customers when her party were in charge, but warned bills were getting worse under the coalition government.
"Prices are going up three times as fast under this Government than they were under us and we need to tackle that."
More top news
A church warden and a magician have been arrested on suspicion of the double murder of two elderly neighbours.
Newcastle owner Mike Ashley has ended takeover talks with prospective buyer Amanda Staveley, ITV Tyne Tees understands.
Jerry Chun Shing Lee was found in possession of notebooks that contained the real names of undercover CIA agents and covert facilities.