Not the least bizarre of the Government's strategies, however, is Decc's new Carbon Reduction Commitment (CRC) scheme, requiring up to 30,000 of our largest energy users, such as ministries, councils, universities, hospitals, supermarket chains (and even "monasteries and nunneries"), to pay to register with the Environment Agency. Some 5,000 of them, using more than "6,000 megawatt hours" of electricity each year (equivalent to the needs of 1,250 homes), will then have to carry out a cumbersome audit of their carbon footprint, using "three different metrics", in order to pay £12 for each ton of CO2 they emit – at a total initial cost estimated at £1.4 billion a year. This will eventually be contributed by all of us, either through taxes or, for instance, whenever we visit Tesco.