Sometimes government does all the wrong things, for all the right reasons. This is the case with the UK coalition government's energy bill, which officially becomes law on Tuesday. The bill – now indeed an act – has been championed by Liberal Democrat Chris Huhne. It introduces a new policy called the green deal,, under which households will be able to borrow funds for energy-saving home improvements. Repayments will be collected through gas and electric bills, and if you move house, the new occupier takes over the debt.

These are interesting ideas, and household CO2 emissions are certainly a problem. But the green deal is the not the right solution. Here are the five reasons why..