The scheme is designed to help consumers better understand how energy efficient products can help them cut their household bills.

Speaking at the scheme’s launch at John Lewis on Oxford Street, Energy Secretary Edward Davey said: “In the past, people have had no idea how much their appliances will add to their energy bills.

“Now consumers will be able to see clear, simple information on the lifetime electricity costs for appliances like washing machines and tumble dryers. This will help people to make better, more informed decisions and see how much an appliance is expected to cost over its lifetime.”

“Just by choosing a more energy efficient washer dryer when replacing an old appliance, consumers could save over £500 in lifetime energy costs. This shows the serious savings that are possible when you buy energy saving goods.”

Elsewhere, the Government has announced plans to train 500 volunteers to help consumers compare and switch energy bills.

Some 84% of people have not switched energy supplier in the last year, missing out on savings as high as £158 on their energy bills, the Government said.

Davey said: “An army of around 500 volunteers will be trained to provide advice and practical help to the most vulnerable about how to keep warm and access the help that is available. This will help create a legacy of savvy switchers, giving households all the information they need to engage with energy suppliers and seek out the best deals.

“This comes on top of radical reforms to bring people simpler and clearer energy bills, to cut the number of tariffs on offer and to make suppliers take customers off poor-value dead tariffs on to the best deal for them.”