Helping Prevent A Cholera Outbreak

An estimated 4 million cases of cholera are reported each year and up to  142,000 people die.  Early detection and re-hydration can save the lives of nearly all of them.


Project Description:

  • One of the goals is to help prevent the outbreak of cholera, using the Solvatten system. This system brings easy to use water treatment and solar water heating to people in developing countries.
  • Using data provided by Solvatten, volunteers will create algorithms that will help deploy the Solvatten's system to places around the world.

David Wadström Will Be Speaking On Behalf Of The Solvatten Organization About Their Cause

During The Predictive World Speaker Conference



A Human Centered Solution - Just add sun. Swedish inventor Petra Wadström created the Solvatten system to bring easy to use water treatment and solar water heating to people in developing countries. The device harnesses the power of the sun to treat and heat water, reducing the need to heat and boil water by burning firewood or charcoal. The units are capable of rendering highly contaminated water drinkable in a few hours, provided there is sufficient sunlight. Solvatten directly addresses poverty-related health issues that are connected to energy scarcity and poor water quality. Solvatten has 45 active projects and more than 200,000 users across the world.

How it Works

It is well documented that solar energy can be an effective means of cleaning contaminated water. This is because ultraviolet (UV) light destroys the formation of DNA linkages in microorganisms, thereby preventing them from reproducing and thus rendering them harmless. Add the rapid heating of water and you have the exact process that occurs when Solvatten is used.

Another unique feature about Solvatten is that it creates hot water — up to 75°C. Water at this temperature is perfect for a number of household and hygiene purposes, such as cooking, hand washing, bathing and domestic cleaning. Users that want cooler water can simply place their unit in the shade once the water has been purified. Solvatten can be used on partly cloudy days but not during heavy rain or thick cloud cover.

Sites to Visit


David Wadström

Head of Public Relations and Communication