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Operating Segments (Schedule of Revenues from Company's Operation in Italy and Spain) (Details) € in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 EUR (€) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 EUR (€) | Dec. 31, 2020 EUR (€)
Disclosure of geographical areas [line items] |  |  |  |  |
Revenue | € 53,360 | $ 56,908 | € 45,721 | [1] | € 9,645
Israel [Member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Revenue | 1,119 |  | 1,016 |  | 1,066
Italy [Member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Revenue | 0 |  | 0 |  | 0
Netherlands [Member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Revenue | 12,640 |  | 12,686 |  | 6,002
Spain (including Talasol Project) [Member] |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Revenue | € 39,601 |  | € 32,019 |  | € 2,577
[1] | Restated following application of an amendment to IAS 16 - see Note 2C.

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