Source: http://motherboard.vice.com/read/this-is...

Over the last twelve years, engineers, researchers, and residents of El Heirro, the smallest of Spain's Canary Islands, have been building one of the world's most interesting living laboratories for sustainable off-grid living. They erected five towering wind turbines, built a huge reservoir that works as a battery, and installed three desalination plants that will let the tiny outpost harvest its drinking water from the sea. Now, the $75 million project is almost ready to be brought online.