Well, it is probably encorporating a lot of existing ideas, but they've designed a circular building. At first I thought it was a new sort of giant turbine, from the name, but it is a wind cooled building, with solar power, rain water capture and the like - all from materials local to Roterdam and designed so you can take it apart and reuse the bits. So quite cool. I'd like to find a webpage with a bit more technical detail, but so far so intriguing