Watly is world’s first, and largest, solar-powered computer that uses thermal technology to provide clean water, electricity, and Internet connectivity to about 750 people. Measuring in at about 131 feet (40 meters) long, this machine can sanitize up to 1,320 gallons (5,000 liters) of water a day, while generating electricity that can be used to charge external devices. Watly is also built with a 3G/4G router that gives people access to the Internet.