You’ve seen a lot of energy efficient houses on Freshome, yet we didn’t have a residence that was completely self-sustainable. The IKAROS House was recently unveiled in Germany at the European Solar Decathlon.  Built by the University of Applied Sciences in Rosenheim, this project produces energy that exceeds the home’s needs. How is this possible? By using a variety of green technology such as solar panels, vacuum insulation panels, efficient mechanical systems and natural ventilation. The home was built for a family of four and is a small compact building with a very interesting design. Its price is said to be 275,000 €, but being given that it is able to save about 4,600 € on energy costs every year, it is definitely worth it.- via Inhabitat