Wow. Our experiment is off to a great start—let's see if we can finish it off sooner than expected.
While Germany deserves the props that come with its number one ranking, the real winner at the Solar Decathlon held in Washington, DC, is solar power itself. Twenty competitors from University teams in the US, Canada and Europe built architectually bold and energy efficient houses, and set them up on the National Mall. It was a showcase for the schools and nations represented, but the sun (while remaining 93 million miles away) was the star of the show. (MJ policy: one pun allowed per post.)
But, you really should check out the photos of the buildings -- they're extraordinary, even without taking their solar super-powers into account.