The energy of wind-driven ocean waves had been converted to electrical power. The offshore installation uses hydraulic pumps that push oil through a turbine that drives an electrical generator. The offshore presence reduces the wave energy, and the reverse-osmosis desalination technology may cause an increase in salinity of coastal seawater.
So, optimally these can be located on offshore islands where the potable water can be stored and taken inland through an undersea pipeline connection or with tanker barges regularly carrying potable water to the mainland. There are many uninhabited islands around the world, where the combination of undersea power cable technology and optical telecommunications technology could allow for remote monitoring and remote control of desalination equipment and operations.
Tanker ships had already carried potable water from regions of excess water to regions of limited water supply, such as the recent movements between France and Israel. A huge mass of potable water flows into the sea where seasonal floods occur. Sometimes unexpected occurrences of excess flooding due to El Niño may cause a massive volume of potable water flowing out to sea. Water can be harvested from such locations.
Installing pipelines between coastal and inland riverbank locations to collect a portion of seasonal excess water from upstream is also possible. The excess water collected can be transferred to tanker ships. Intense UV-lighting technology in the pipeline and inside ship tanks would destroy harmful waterborne bacteria. During the flood season, shipborne water cleansing technology would allow a possible export as well as local consumption.