OK, I think it was cars the UK government were offering the discount on, not storage arrays. It goes like this; the government has set aside £300m – you trade in a car over 10 years old and get £2000 off the cost of a new one, half funded by the government. Apart from the obvious options to abuse this kind of system (buy yourself a banger for less than £2000 and into the dealership showroom you go) it’s the implication that we should be artifically propping up an industry to consume more when what we have works perfectly well.