There are parts of the world in which basic resources such as water are limited. The authorities in the Canary Islands, for example, are unable to supply all the water needed for the archipelago’s population, industry, and agriculture without resorting to techniques such as desalination.

Solar power could be a cost-effective way to power desalination plants in the Canary Islands, but the archipelago has a limited amount of land for PV facilities.

A mix of high population density, irregular topography, protected natural areas, and dependence on tourism makes it difficult to install large solar plants, aside from rooftops or the sea.

(LINK).