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EU Blue Economy Observatory
Desalination capacity in the EU, from different feedwater sources
Figure 2. Desalination capacity (mm3/d) in the EU, from different feedwater sources

In the Mediterranean Member States, most facilities use seawater as feedwater, whereas the situation reverses in the rest of the EU, with inland or brackish water used as the main source. Wastewater is a minor source of feedwater in the entire EU (Figure 6).

Desalination distribution

The economic size of the desalination market in the EU requires estimating complementary segments across the desalination value chain. In the absence of official disaggregated statistics on turnover, value added and employment for each of these segments at the EU level, the turnover of the desalination operation segment can be estimated by using average costs of producing desalinated water and installed capacity as reference indicators (Figure 7)[37].

Size of the EU Desalination subsector, 2009-2023. Turnover, GVA ad gross operating surplus in billion EUR, persons employed (thousand), and average wage
Figure 7. Size of the EU Desalination subsector, 2009-2023. Turnover, GVA ad gross operating surplus in billion EUR, persons employed (thousand), and average wage (thousand EUR)

Spain largely dominates the desalination operation market, employing nearly 73% of the subsector’s workforce (5,596 persons) and generating 69% of its GVA (EUR 422 million) (Figure 8).

Share of employment and GVA in the EU Desalination subsector, 2022
Figure 8. Share of employment and GVA in the EU Desalination subsector, 2022

8The term diluate specifically refers to the solution that has been desalinated in electrodialysis processes, where dissolved ions are removed by an applied electric potential across ion-exchange membranes. This term is frequently used in technical and engineering literature on membrane processes, as highlighted in the work of Elimelech & Phillip (2011) in The future of seawater desalination: Energy, technology, and the environment (Science, 333(6043), 712-717), and Strathmann (2010) in Electrodialysis, a mature technology with a multitude of new applications (Desalination, 264(3), 268-288).

9 Bisselink B., Bernhard J., Gelati E., Adamovic M., Guenther S., Mentaschi L., Feyen L., and de Roo, A, Climate change and Europe’s water resources, EUR 29951 EN, Publications Office of the European Union, Luxembourg, 2020, ISBN 978-92-76-10398-1, doi:10.2760/15553, JRC118586.

10 Of these, 11,724 are currently operating, representing 85% of the total number of facilities and accounting for 92% of the global capacity.

11 Jones, E., Qadir, M., van Vliet, M. T., Smakhtin, V., & Kang, S. M. (2019). The state of desalination and brine production: A global outlook. Science of the Total Environment, 657, 1343-1356

12 Eyl-Mazzega M.A. and É. Cassignol, (2022). The Geopolitics of Seawater Desalination, Études de l’Ifri, IFPRI, September 2022. 

Sirota, R., Winters, G., Levy, O., Marques, J., Paytan, A., Silverman, J., ... & Bar-Zeev, E. (2023). Impacts of Desalination Brine Discharge on Benthic Ecosystems. Environmental Science & Technology. 

19 Cammalleri C., Naumann G., Mentaschi L., Formetta G., Forzieri G., Gosling S., Bisselink B., De Roo A., and Feyen L, JRC Technical Report, 2020, “Global warming and drought impacts in the EU”, doi: 10.2760/597045

23  Del Amor et al. 2020. Integrated Water Management in Southeast Spain: Assessment of Total Water Cycle. Water. 12(6):1803.

24 Martínez-Alvarez et al. 2016. Seawater Desalination for Crop Irrigation – A Review of Current Experiences and Revealed Key Issues. Desalination. 381: 58-70.

25 Chartzoulakis et al. 2010. Water Resources Management in Crete (Greece) including Water Recycling and Desalination. Agricultural Water Management. 98(1): 96-105

26 Polycarpou and Zachariadis 2013. An Econometric Analysis of the Use of Desalinated Water in Cyprus. Water Resources Management. 27(7): 2089-2101.

27  Poulakis et al. 2015. Overview of Water Quality Problems in Three Regions of Intensive Agriculture in Greece and Agricultural Practices to Minimize the Impact on Water Resources. Global Nest Journal. 17(4): 721-732.

37 Based on data released by AEDyr, the Spanish desalination association (https://aedyr.com/en/) and DesalData, respectively.

38 Technology, Committee & Board, Water & Studies, Division & Council, National. (2008). Desalination: A national perspective. 10.17226/12184.

39 Voutchkov, N. (2019). The Role of Desalination in an Increasingly Water-Scarce World.