Rotating Solar House Generates Five Times The Energy It Consumes

What's cooler than a rotating house? One whose solar panels produce five times the energy the house uses. That's pretty incredible, considering that even zero-energy structures are rare. German architect Rolf Disch built the home, called Heliotrope, to follow the sun throughout the day. The structure features triple panes of thermally insulated glass to strike a balance between letting light in and keeping the house cooler inside.