Harvesting vapour from the air and turning it into drinking water – that’s the genius of a new device that could be used all over the world. This solar-powered invention named SOURCE has atmospheric water generators which apparently work in almost every climate and every day of the year. It’s able to produce up to ten litres of clean water per day from the air by collecting water vapour and condensing it into liquid. It can also hold up to 30 litres of collected water. SOURCE is a self-contained unit that is designed to be mounted onto the roof of a building. It usually has two hydropanels, but additional panels can be added as required for more water production or to suit the local climate.

Prime candidates to benefit from these units are regions which are drought-stricken and locations without a stable or protected water source. Normal residences, off-grid homes and commercial buildings could also benefit from their use. The invention is the brainchild of the American company Zero Mass Water, who say the unit can produce water even in the driest conditions: "The SOURCE at our headquarters in Scottsdale, Arizona makes water all year despite the low relative humidity. The Phoenix-Metro area can get below 5% relative humidity in the summer, yet SOURCE still produces water in these incredibly dry conditions."