Actually, when we started with district heating in Sweden, the bigger building was the target, and it was municipally built, so often the bigger buildings, hospitals, were the first ones to participate in the system. In the last 10 years we've actually been connecting smaller facilities to the system, and it's growing larger in every proportion.
I don't think it was the strategy, really. The strategy was to connect the bigger buildings first, and the market has asked for even the smaller buildings to be connected, because of environmental reasons but also because of price, because oil and gas in Sweden is quite heavily taxed and they saw an opportunity to get a lower price for their heating by using bio.
I would say there wasn't really a strategy for it. If you were to build it somewhere else, you should have a strategy for it and you should, as Peter told you, go by the local possibilities. You can use almost anything for this system, so in a small way you can build it for 100 buildings, or you can build it for 10,000; it's just the possibility of getting fuel for it.