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Details of the Statements of Profit or Loss and Other Comprehensive Income (Revenues) (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Details Of Statements Of Profit Or Loss And Other Comprehensive Income Revenues |  |  |
Revenues from the sale of solar electricity | € 13,069 | € 12,593 | € 13,150
Revenues from the sale of gas and power produced by anaerobic digestion plants | 4,786 | 4,483 | 303
Revenues from concessions project | 1,133 | 1,041 | 183
Total Revenues | € 18,988 | € 18,117 | € 13,636

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