Desalination is a process that removes dissolved minerals (including but not limited to salt) from seawater, brackish water, or treated wastewater. A number of technologies have been developed for desalination, including reverse osmosis (RO), distillation, electrodialysis, and vacuum freezing. The main disadvantages of desalination is the lack of siting flexibility due to the need to set up stations on expensive and limited shore land and the high cost of energy (Approximately one third of the operational costs of a water desalination facility is the power consumption). Nevertheless, the amount of energy required to desalinate one cubic meter of sea water is less than 4 KwH, which is equivalent to the amount of energy required to move a car on average between 2-8 km. An average Israeli family would only increase its energy consumption by 3% if all the water it consumed was desalinated water. If a desalination facility is linked to a natural gas power station for the supply of energy then the natural gas which represents about 50-60% of the cost of the generation of the electricity thus becomes a critical element in the cost of the end product, namely the desalinated water.