Reforms to energy tariffs could leave some consumers struggling to identify the best deal for their needs, a consumer group has warned.
Which? said that more than three million households could find it difficult to compare prices under plans to reform tariffs.
It has called for energy prices to be displayed in the same way as petrol prices.
The regulator said that the new system would prompt people to shop around.
Regulator Ofgem’s proposed tariff comparison rate (TCR) aims to simplify energy tariffs and allow consumers to compare prices across the market.
It would work in a similar way to an APR used by financial services providers.
