Energy tariff reforms

Regulator Ofgem says it is banning of confusing and complex tariffs will create a simpler and clearer market.

Other changes include limiting suppliers to just four tariffs per customer for both electricity and gas and simplifying how prices are charged.

The moves are the result of a Retail Market Review which began in 2010.

Further reforms will be introduced by April, including forcing suppliers to tell consumers which of their tariffs are the cheapest.

Ofgem chief executive Andrew Wright hopes the changes will ultimately drive down prices.

Ofgem will produce an annual report to consumers on the health of competition in the market.

It has said it "will not hesitate to take further action" if it sees "evidence of further barriers to competition".

Energy UK, which represents more than 80 energy providers and suppliers, said the reforms were essential to rebuilding trust with consumers.

The latest reforms follow the introduction in October of new rules for fixed-term tariffs.

Suppliers are no longer allowed to increase prices during the course of a fixed term and must not automatically roll customers on to another fixed-term offer when their current one ends.