The "Solar Decathlon" is going on in Wash. D.C. with 20 college and university teams participating. The object of the Decathlon is for the teams to create a Solar Home that is livable and as affordable as possible. The point that they want stressed is that this technology is here and evolving. You can have a home run almost completely with Solar Power right now.
The solar homes the teams made were on display for 9 days and the German team from Technische Universität Darmstadt won this year's event.