Clean drinking water is scarce in many parts of the world – especially in hot areas. According to the WHO 780 million people worldwide do not have access to clean water, with 3.4 million deaths related to it. Though in many dry regions in terms of precipitation, humidity is often particularly high. For these regions, the Israeli start-up Water-Gen has developed a device that draws water from the air. A power connection is required but the device is arguably more energy efficient than previous models because it uses already cooled air to reduce the temperature of incoming air. Thus far the company has worked with the military of various countries, but now the civilian population is to benefit.
The apparatus called GENius condenses humid air on a cool core, filled with artificial leaves of plastic. It seems like an easy thing to do because we see it happening every day in summer with air condition but the tricky thing is to do it efficiently. Approximately 300 watt hours of electrical energy per liter of water produced are required. Water-Gen also uses the same process in dehumidifiers and tumble dryers.
GENius is supplied in several sizes – for schools, hospitals, villages or only for one family. It is still being tested in cities such as Mumbai and Mexico City before the launch in late 2017.