With renewables due to changing weather and demand, prices for electricity at international markets are falling regularly, sometimes even becoming negative (kee

With renewables due to changing weather and demand, prices for electricity at international markets are falling regularly, sometimes even becoming negative (keeping the frequency is must), only to rise again when there is more demand than supply. Desalination plants have the advantage that, as long as you have overcapacities compared to the average needs around, they can be turned on when energy is cheap and off when it's expensive. While they are operating, they would fill reservoirs that would provide a continuous supply of water. There might be a thermodynamic limit onto how much energy you need to desalinate water, but the limits of harvesting renewable energy are far from being reached. We might make the sahara green, in this very century.