v3.8.0.1

Income Tax, Analysis of deferred tax assets and liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Net operating losses |  | $ 387,000 |  |
Corporate tax rate |  | 35.00% |  |
Deferred tax assets |  | $ 165,136 | $ 202,891 | $ 191,314
Deferred tax liabilities |  | 186,583 | 95,037 | $ 79,654
Plan [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Corporate tax rate | 21.00% |  |  |
Net tax credits for Operating losses carryforwards [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax assets |  | 71,219 | 102,804 |
Temporary differences derivatives financial instruments [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax assets |  | 93,719 | 99,930 |
Temporary differences derivatives financial instruments [Member] | Solar Plants in Spain [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax assets |  | 69,000 |  |
Temporary differences derivatives financial instruments [Member] | ACT [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax assets |  | 18,000 |  |
Temporary differences tax/book amortization [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax liabilities |  | 113,432 | 28,810 |
Temporary differences tax/book value of contracted concessional assets [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax liabilities |  | 66,247 | 61,818 |
Other temporary differences [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax assets |  | 198 | 157 |
Deferred tax liabilities |  | 6,904 | $ 4,409 |
Temporary difference for accelerated tax amortization [Member] | Solar Plants in Spain [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax liabilities |  | 51,000 |  |
Temporary difference for accelerated tax amortization [Member] | Solana and Mojave [Member] |  |  |  |
Deferred Tax Assets and Liabilities [Abstract] |  |  |  |
Deferred tax liabilities |  | $ 63,000 |  |

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