Employers benefit from fitter, more punctual, more wide-awake staff. Employees benefit from better health and better bikes because their money goes further. Everyone benefits from eliminated CO2 and reduced number of cars on the road.

New research out today reveals that eight out of 10 people in Britain don't know what they are paying for their gas and electricity. If everyone in Wales switched to smart meters the country could save around £58,000 a year.