Our global presence


We are world leaders in desalination by reverse osmosis, the most sustainable, advanced and widely used desalination technique, capable of improving water quality and reducing the impact on the environment.

Desalination by Reverse Osmosis (IDAM/IDAS)

In a region with serious water shortages, the demand for desalinated water is growing in response to climate change and an increasing population. Saudi Arabia, a country with a population of around 33.4 million, is the third biggest consumer of water per capita in the world, after the United States and Canada. The country has implemented a series of measures to rationalize water consumption as part of its Vision 2030 program, with the aim of reducing consumption by up to 43% by the end of this decade. 

At ACCIONA, we work to help  achieve this objective and design a better planet through the mechanisms which make us leaders and pioneers in the sustainable desalination sector. We only carry out water desalination by reverse osmosis — the best desalination technology for providing fresh water in water stressed areas and for promoting a decarbonised economy.

In fact, using reverse osmosis involves 6.5 times less CO2 emissions than conventional desalination technologies in the Middle East and Africa. And as technology evolves and optimises the efficiency and performance of desalination plants, more and more people have fresh water. We have built desalination plants capable of treating about 4.6 million m3/day, sufficient to supply a population of about 25 million people.

Water scarcity, which affect 40 % of the population, is being exacerbated by global warming.

Key figures

Data as of 31 December 2021


desalination plants in the ME

3,6 M

m3/day of desalinated seawater

+13 M



Water desalination consists of a water treatment process by which seawater or brackish water is converted into drinking water in order to supply the population with greater difficulty in accessing fresh water.