Ofgem

It also failed to provide annual energy statements to some customers

Ofgem has selected Octopus Energy to take over its customers

The price cap is expected to save UK households an average of around £75 a year

It will be confirmed in November and come into effect towards the end of December

The Big Six supplier rolled customers onto its more expensive standard variable tariff due to a system error

Customers did not have to provide complicated information about their existing tariff to see personalised savings

It will give the regulator more time to consider the consultation responses by industry

It would export renewable power to the national grid

The regulator has set out its initial views and said final decisions will be made in September

Ofgem is increasing the safeguard tariff, following a rise in global oil prices, from 1st October 2018