Desolenator Ltd

When the sun is a source of water

Posted on 09 April 2015.

Crowdfunding gives us yet another great story - a London start-up has raised enough money to start production of a solar water purifier.

William Janssen and his team wanted millions of people worldwide to have sustainable access to safe drinking water. So they designed the Desolenator, a mobile water desalination system that can purify any water source, including saltwater, using energy from the sun.

Its photovoltaic panels convert the sun's rays into electricity. But the Desolenator also absorbs heat from solar radiation. The water is heated to 90°C before being boiled with electricity generated by the panels. This is what distinguishes William Janssen’s device - he makes the most of solar radiation to purify more water. The steam produced is recovered in a tank and condensed. The water is then ready to drink! The advantage of the Desolenator is obvious: it produces fresh water without electricity. Where people do not have access to clean water, they often don’t have access to power either. According to its inventor, the Desolenator is able to purify up to 15 liters of water per day and is therefore a highly efficient, environmentally friendly and relatively affordable way of covering an entire family’s needs.

With the money collected through the Indiegogo crowdfunding campaign, William Janssen is aiming to test the Desolenator in a village in southern India, and then develop and produce the final model before making the first deliveries in October 2015.