Around 500,000 low energy users, who tend to be on the lowest incomes, could be advised on the wrong tariffs, under new proposals by Ofgem, Which? said.
Rising energy bills remain one of consumers' top financial concerns yet six in 10 of us have never switched supplier as people are left baffled by the vast array of complicated tariffs.
These current proposals are far too complicated and will fail to achieve their aim of making it easier for people to find the best deal, with three-quarters of people being asked to compare prices that are not based on their energy usage.
More top news
The Scottish village of Dull is already paired with the US town of Boring - and now the Australian region of Bland wants in on the deal.
Frontal systems continue to move in from the Atlantic over the next few days.
The show which features celebrities taking part in a range of winter sports has lead to 34 stars being injured during its four-year run.