If you live by the sea and your community doesn’t have electrical power, then WaterLight is for you. This revolutionary device provides electricity for 45 days using just two cups of sea water, and its effectiveness has been proven in one of the poorest areas of South America – the Guajira Peninsula, a coastal desert at the northernmost tip of the continent..

Developed by the Colombian renewable resource startup E-Dina Energy in April 2016,  WaterLight uses a “specially designed electronic circuit that manages to extend the transfer of ions from a saline medium to convert them into useful and immediate energy”, thus extracting 500 watts of energy for each litre of water.