John Lewis is to adopt a government green initiative that will see all washing machines, washer dryers and tumble dryers displaying a label that indicates the product's lifetime electricity running cost.
Energy secretary Edward Davey said the initiative will enable people to better understand how energy efficient products can bring savings to household bills.
The government claims an energy efficient washer dryer can, for example, save the average household £500 in energy costs over its lifetime.
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."
"This new trial with John Lewis will help raise consumer awareness of energy running costs. I hope it leads to more retailers rolling out clearer labelling."
The government has also announced the introduction of 500 volunteers, being trained through the Big Energy Saving Network to help consumers switch energy suppliers.
Help those in need
Davey added that the government hopes the Network will help some of the most vulnerable people across the country, including the poorest pensioners, who are unaware of how they can get help through schemes to heat their homes and cut their energy use.
"We're doing our bit by working with our partners in the Big Energy Saving Network to help people get their bills down and keep their homes warm – before the clocks go back," the MP added.
The Winter Fuel Payment offer between £100 and £300 to people born on or before 5 January 1952; while Cold Weather Payments offer £25 for each seven-day period of "very cold weather" between 1 November 2013 and 31 March 2014. The latter payments kick in when your local temperature is either recorded as, or forecast to be, an average of zero degrees Celsius or below over seven consecutive days.