The River’s Light: Water Needs for Thermoelectric Power Generation in the Ebro River Basin, 1969–2015

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Abstract
Water is essential for almost all energy processes. This paper analyses the evolution of the cooling water needs of thermal power plants in the Ebro River basin, the largest contributor to the Spanish electricity grid, over the period 1969–2015. It makes several contributions. First, the cooling water needs for the plants are estimated. Second, these water requirements are compared to other water-using activities in the region. Third, a long-term water-use efficiency analysis is carried out. Finally, water-saving measures are proposed to counter possible future water scarcities. The results show that thermoelectric water consumption per capita is around 7 m3/year. Estimated future thermal power generation water withdrawals (around 500 m3 per capita/year) might compromise flows for other water uses in periods of drought.
Funding Information
  • Ministerio de Economía y Competitividad (BES-2015-074128)

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