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Details of the Statements of Profit or Loss and Other Comprehensive Income (Schedule of Costs and Depreciation) (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Details Of Statements Of Profit Or Loss And Other Comprehensive Income Loss [Abstract] |  |  |  |
Depreciation from fixed assets | € 14,954 |  | € 13,977 | € 2,299
Depreciation from right-of-use assets | 743 | [1] | 774 | 320
Amortization of intangible asset | 395 |  | 365 | 356
Professional services | 2,280 |  | 1,496 | 482
Operating and maintenance services | 14,115 |  | 11,456 | 4,025
System operator charges | 6,882 |  | 3,046 | 0
Insurance | 694 |  | 549 | 178
Other | 118 |  | 1,043 | 266
Total operating costs | € 40,181 |  | € 32,706 | € 7,926
[1] | The rest of the depreciation is capitalized to fixed asset.

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