With the latest technology, it is possible to clean the water from the sea with reverse osmosis method with much better quality and at a much lower cost than distillation and similar methods. Since the beginning of the nineties our company GAMA closely follows and implements the technology. As the cost of extracting water from the sea has significantly decreased with the evolving technology, the cost of running the project is now coming to the fore. Within the operating costs, the highest cost is the power consumption. Although the water intake structure can vary according to many technical details, the cost of extracting fresh water from the sea today can be reduced to about 2.2 kW cost per cubic meter as power consumption. Today, even in the world’s worst marine waters, the waters of cities and metropolises are extracted from the sea using the reverse osmosis method.