v3.19.1

Nature of the business, Assets acquired (Details) $ in Millions |  |  |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 29, 2019 USD ($) | Dec. 14, 2018 USD ($) MW | Dec. 11, 2018 USD ($) kV | Feb. 28, 2018 USD ($) MW | Mar. 31, 2019 | Dec. 28, 2018 USD ($) | Oct. 10, 2018 USD ($)
Befesa Agua Tenes, S.L.U. [Member] |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |
Ownership interest |  | 51.00% |  |  |  |  |  |
Equity value of agreed price |  | $ 24.5 |  |  |  |  |  |
Consideration payment advanced |  | $ 19.9 |  |  |  |  |  |
Interest rate |  | 12.00% |  |  |  |  |  |
Chile TL3 [Member] |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |
Gross capacity | kV |  |  |  | 66 |  |  |  |
Acquisition purchase price |  |  |  | $ 6.0 |  |  |  |
Ownership interest |  |  |  |  |  | 100.00% |  |
ATN [Member] |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |
Acquisition purchase price |  |  |  |  |  |  | $ 16.0 |
Ownership interest | [1] |  |  |  |  | 100.00% |  |
Melowind [Member] |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |
Percentage interest acquired |  |  | 100.00% |  |  |  |  |
Gross capacity | MW |  |  | 50 |  |  |  |  |
Acquisition purchase price |  |  | $ 45.0 |  |  |  |  |
Ownership interest |  |  |  |  |  | 100.00% |  |
Mini- Hydro [Member] |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |
Percentage interest acquired |  |  |  |  | 100.00% |  |  |
Gross capacity | MW |  |  |  |  | 4 |  |  |
Acquisition purchase price |  |  |  |  | $ 9.0 |  |  |
Ownership interest |  |  |  |  |  | 100.00% |  |
PTS [Member] |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |
Percentage interest acquired |  |  |  |  |  |  |  | 5.00%
Acquisition purchase price |  |  |  |  |  |  |  | $ 7.0
[1] | Including the acquisition of ATN expansion 1.

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