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This billboard produces water

Photo: Phys.org

Imagine a billboard that produces drinking water out of air.

It’s not the stuff stories are made of, it’s real.

A billboard in Lima, Peru, captures the air’s humidity and turns it into potable water for residents. This is how it works: generators inside the billboard process the air and filter it into water, which is stored and drawn by people from the bottom of the billboard. The system is fitted with an air filter, a condenser and a carbon filter. The billboard can generate up to 96 litres of water a day.

The local initiative was created by an advertisement agency called Mayo Draftcfb in collaboration with the University of Engineering and Technology in Lima.

The idea for the billboard, and the water it produces, came about because of theneed for clean drinking water, said the designers in a video. Lima and surrounding villages are in a “coastal desert” and potable water is hard to come by for many of the residents of this burgeoning city.

In photos, the billboard looks like any other as it towers over its surroundings. It takes a closer look to spot the little faucets that come out from it, spurting water.  

The makers have called it the first billboard of its kind.

Raveena Aulakh is the Toronto Star's environment reporter. She is intrigued by climate change and its impact, now and long-term. Follow her on Twitter @raveenaaulakh


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Interesting concept, but how much electricity it requires to generate 96 litres of water? Isn't it more efficient to use that electricity to generate water by other means? e.g. pumping from underground reservoirs, desalinization.

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