Solar Decathlon Europe brings together university teams from around the world . The 19 small houses that run solely on solar power were built over two weeks . The public can see the houses at Club Solar for free . Many of the owners have plans to sell their houses commercially .
Solar Decathlon Europe brings together university teams from around the world . The 19 small houses that run solely on solar power were built over two weeks . The public can tour the houses at Villa Solar for free . Many of the teams have plans to sell their houses commercially .