What type of energy does desalination require?

Desalination primarily requires significant amounts of electrical energy to power the processes used for separating salt and impurities from seawater. Common methods, such as reverse osmosis and thermal distillation, consume energy for pumping water, maintaining pressure, and heating. The energy source can vary, including fossil fuels, nuclear power, or renewable sources like solar and wind. Overall, the energy demand is a critical factor in the economic and environmental sustainability of desalination technologies.