The 2011 Solar Decathlon has seen 20 teams enter the competition from around the world at the National Mall’s West Potomac Park in Washington, D.C. it opens on September the 23rd and well worth taking a look if your in the area. I find the most interesting entry from China doesn’t offer up anything too fancy but I do find a lot of the entries a bit rectangular in design. Nothing wrong with it but the China’s Tongji University design seems to offer something a bit more interesting in shape. Its a personal choice though. Plenty of ideas on show as well as unique and interesting buildings.