Reservoirs are not always located directly next to desalination plants, but proximity is often preferred for efficiency. Placing a reservoir near the plant allows treated water to be stored immediately after production, which reduces the need for long-distance pumping before the water is secured for distribution. This setup also provides a convenient buffer if the plant experiences operational issues, since the reservoir can release water into the system without delay.
In some cases, though, reservoirs are built farther away to better serve distribution needs. For example, if a desalination plant is on the coast but the main population centers are inland, it can be more practical to locate storage closer to where the demand is highest. Elevation can also influence placement: building reservoirs at higher ground away from the plant allows gravity to help move water through the network, lowering energy costs.
