Israel has begun channeling desalinated seawater into the Sea of Galilee, marking the first time anywhere in the world that a freshwater lake is topped up with processed seawater. The water level in the lake is expected to rise by approximately 0.5 centimeters per month through the project.
Energy consumption for desalination has decreased from 20 kWh per cubic meter in the 1970s to 2.5-3.5 kWh today. Producing enough drinking water for one person - about 3 liters per day - through desalination would cost only $2.30 for an entire year.
Wave energy propels a new desalination system by Oneka Technologies. The system can filter 49,000 liters of water daily, powered solely by ocean waves.
Breakthrough solar-powered system unveils cheaper desalination process Potential to produce freshwater at costs lower than tap water