Turning Salt Water Into Fresh Water: Solar Desalination

We are testing an affordable solar water desalination technology to provide access to freshwater in the remote islands of Indonesia.

Carocell 3000
Water purifier
  • Produces safe, high quality potable water from any source 
  • Converts waste brine into drinking water and valuable fractionalised salts 
  • Easy maintenance, optimum performance and efficient energy recovery
The Carocell 3000 Water Purifier

This project has been fully funded.
Thank you to all who contributed.


Families living in Likotuden village, Flores, Indonesia, make several trips each day to collect water, carrying small quantities each time. Moreover, their nearest water source is mixed with the surrounding seawater. As a result, these families often consume the saline, brackish water for daily use.

Seawater is in abundance in the remote islands, but it has to be filtered to make it safe for drinking. The desalination technology, which allows minerals and salt to be removed from the saline water, is usually costly and not always available for the people who really need it.

What we want to test: 

A solar water desalination technology, the Carocell 3000 Water Purifier is now available. At approximately US$250, this technology is affordable on a community basis. It can produce safe, high-quality potable water from any source including seawater, groundwater and contaminated or polluted water.

We will bring two units of technology for testing into a household environment in East Flores, Indonesia. With basic training on correct usage, this simple technology can produce up to 20 litres of freshwater from seawater every day.

What will we measure: 

In this experiment, we will measure:

  • the overall functionality of the technology in the last mile environment
  • the water saline level before and after filtration
  • the amount and quality of the generated freshwater.

The Kopernik team will collect feedback from the user and analyse the results of the experiment over three months. At the end of the experiment, Kopernik will publish and share the results in a series of blogs and a project report. If the results from the experimentation phase are promising, Kopernik will develop a project that will make the solution available on a larger scale.

Who are we working with: 

We are helping families in Likotuden village, Flores, Indonesia, who lack access to safe, affordable drinking water. This project is part of Kopernik’s series of small-scale, low-investment tests of simple ideas that have the potential to reduce poverty.

Project timeframe: 
Five months
Location :
Project Costs: 
Cost TypeCost DescriptionCost Amount
Costs associated with the technology
Project Management
Costs associated with project coordination
Monitoring and Evaluation
Costs associated with data collection and reporting
Wire Transfer Fee
Cost of transferring payments internationally
Payment Processing Fee
Cost of processing online donations (5%)
Administration Fee
A contribution to Kopernik's operational costs (15%)
Fluctuations in currency exchange rates and shipping costs may change the final quantity of technologies we ship for this project.

A huge Kopernik thank you to the 66 people who pitched in $3,791.00