How does that 50% stack up against how much power they use compared to all other countries that have nuclear power available to them? Wikipedia has China's power usage in 2008 as just below the US's, but growing much faster. It also has much more of their power coming from coal in 2011 (46%, to 13%). It makes sense to me that China would be expanding their nuclear power faster than anybody else right now. Of course it would be nice if we would pick up the pace too...