v3.8.0.1

Nature of the business, Concessional assets owned (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Sep. 30, 2013 | Mar. 31, 2018
ACT [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Efficient natural gas
Ownership |  |  | 100.00%
Location |  |  | Mexico
Currency | [1] |  | USD
Capacity (gross) |  |  | 300 MW
Counterparty credit ratings | [2] |  | BBB+/Baa3/BBB+
COD |  |  | 2Q 2013
Contract years left | [3] |  | 15 years
ATN [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Transmission line
Ownership |  |  | 100.00%
Location |  |  | Peru
Currency | [1] |  | USD
Capacity (gross) |  |  | 362 miles
Counterparty credit ratings | [2] |  | BBB+/A3/BBB+
COD |  |  | 1Q 2011
Contract years left | [3] |  | 23 years
ATS [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Transmission line
Ownership |  |  | 100.00%
Location |  |  | Peru
Currency | [1] |  | USD
Capacity (gross) |  |  | 569 miles
Counterparty credit ratings | [2] |  | BBB+/A3/BBB+
COD |  |  | 1Q 2014
Contract years left | [3] |  | 26 years
ATN2 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Transmission line
Ownership |  |  | 100.00%
Location |  |  | Peru
Currency | [1] |  | USD
Capacity (gross) |  |  | 81 miles
Counterparty credit ratings | [2] |  | Not rated
COD |  |  | 2Q 2015
Contract years left | [3] |  | 15 years
Quadra 1 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Transmission line
Ownership |  |  | 100.00%
Location |  |  | Chile
Currency | [1] |  | USD
Capacity (gross) |  |  | 49 miles
Counterparty credit ratings | [2] |  | Not rated
COD |  |  | 2Q 2014
Contract years left | [3] |  | 17 years
Quadra 2 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Transmission line
Ownership |  |  | 100.00%
Location |  |  | Chile
Currency | [1] |  | USD
Capacity (gross) |  |  | 32 miles
Counterparty credit ratings | [2] |  | Not rated
COD |  |  | 1Q 2014
Contract years left | [3] |  | 17 years
Palmucho [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Transmission line
Ownership |  |  | 100.00%
Location |  |  | Chile
Currency | [1] |  | USD
Capacity (gross) |  |  | 6 miles
Counterparty credit ratings | [2] |  | BBB+/Baa2/BBB+
COD |  |  | 4Q 2007
Contract years left | [3] |  | 20 years
Skikda [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Water
Ownership | [4] |  | 34.20%
Location |  |  | Algeria
Currency | [1] |  | USD
Capacity (gross) |  |  | 3.5 M ft3/day
Counterparty credit ratings | [2] |  | Not rated
COD |  |  | 1Q 2009
Contract years left | [3] |  | 16 years
Skikda [Member] | Algerian Energy Company, SPA [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 49.00%
Skikda [Member] | Sadyt [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 16.83%
Honaine [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Water
Ownership | [5] |  | 25.50%
Location |  |  | Algeria
Currency | [1] |  | USD
Capacity (gross) |  |  | 7 M ft3/day
Counterparty credit ratings | [2] |  | Not rated
COD |  |  | 3Q 2012
Contract years left | [3] |  | 20 years
Honaine [Member] | Algerian Energy Company, SPA [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 49.00%
Honaine [Member] | Sadyt [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 25.50%
PS10/PS20 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 31 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 1Q 2007 & 2Q 2009
PS10 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 14 years
PS20 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 16 years
Solana [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Ownership interest type | [6] |  | Class B
Location |  |  | Arizona (USA)
Currency | [1] |  | USD
Capacity (gross) |  |  | 280 MW
Counterparty credit ratings | [2] |  | A-/A3/A-
COD |  |  | 4Q 2013
Contract years left | [3] |  | 26 years
Solana [Member] | Liberty Interactive Corporation [Member] |  |  |
Nature of the business [Abstract] |  |  |
Class A membership investment |  | $ 300,000 |
Percentage of dividends and taxable loss once certain conditions met |  | 22.60% |
Solana [Member] | Liberty Interactive Corporation [Member] | Bottom of range [member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of dividends and taxable loss received |  | 54.06% |
Solana [Member] | Liberty Interactive Corporation [Member] | Top of range [member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of dividends and taxable loss received |  | 61.20% |
Mojave [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Location |  |  | California (USA)
Currency | [1] |  | USD
Capacity (gross) |  |  | 280 MW
Counterparty credit ratings | [2] |  | BBB+/Baa1/BBB+
COD |  |  | 4Q 2014
Contract years left | [3] |  | 22 years
Solaben 2 & 3 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership | [7] |  | 70.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 2x50 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 3Q 2012 & 2Q 2012
Solaben 2 & 3 [Member] | Itochu Corporation [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 30.00%
Solaben 2 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 20 years
Solaben 3 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 19 years
Solacor 1 & 2 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership | [8] |  | 87.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 2x50 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 1Q 2012 & 1Q 2012
Contract years left | [3] |  | 19 years
Solacor 1 & 2 [Member] | JGC [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 13.00%
Helioenergy 1 & 2 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 2x50 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 3Q 2011 & 4Q 2011
Contract years left | [3] |  | 19 years
Helios 1 & 2 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 2x50 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 3Q 2012 & 3Q 2012
Contract years left | [3] |  | 20 years
Solnova 1, 3 & 4 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 3x50 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 2Q 2010 & 2Q 2010 & 3Q 2010
Solnova 1 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 17 years
Solnova 3 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 17 years
Solnova 4 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Contract years left | [3] |  | 18 years
Solaben 1 & 6 [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership |  |  | 100.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 2x50 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 3Q 2013
Contract years left | [3] |  | 21 years
Seville PV [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership | [9] |  | 80.00%
Location |  |  | Spain
Currency | [1] |  | Euro
Capacity (gross) |  |  | 1 MW
Counterparty credit ratings | [2] |  | A-/Baa1/A-
COD |  |  | 3Q 2006
Contract years left | [3] |  | 18 years
Seville PV [Member] | Idae [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 20.00%
Kaxu [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Solar)
Ownership | [10] |  | 51.00%
Location |  |  | South Africa
Currency | [1] |  | Rand
Capacity (gross) |  |  | 100 MW
Counterparty credit ratings | [2],[11] |  | BB/Baa3/BB+
COD |  |  | 1Q 2015
Contract years left | [3] |  | 17 years
Kaxu [Member] | IDC [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 29.00%
Kaxu [Member] | Kaxu Community Trust [Member] |  |  |
Nature of the business [Abstract] |  |  |
Percentage of non-controlling interests |  |  | 20.00%
Palmatir [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Wind)
Ownership |  |  | 100.00%
Location |  |  | Uruguay
Currency | [1] |  | USD
Capacity (gross) |  |  | 50 MW
Counterparty credit ratings | [2],[12] |  | BBB/Baa2/BBB-
COD |  |  | 2Q 2014
Contract years left | [3] |  | 16 years
Cadonal [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Wind)
Ownership |  |  | 100.00%
Location |  |  | Uruguay
Currency | [1] |  | USD
Capacity (gross) |  |  | 50 MW
Counterparty credit ratings | [2],[12] |  | BBB/Baa2/BBB-
COD |  |  | 4Q 2014
Contract years left | [3] |  | 17 years
Mini-Hydro [Member] |  |  |
Nature of the business [Abstract] |  |  |
Type |  |  | Renewable (Hydraulic)
Ownership |  |  | 100.00%
Location |  |  | Peru
Currency | [1] |  | USD
Capacity (gross) |  |  | 4 MW
Counterparty credit ratings | [2] |  | BBB+/A3/BBB+
COD |  |  | 2Q 2012
Contract years left | [3] |  | 15 years
[1] | Certain contracts denominated in U.S. dollars are payable in local currency.
[2] | Reflects the counterparty's credit ratings issued by Standard & Poor's Ratings Services, or S&P, Moody's Investors Service Inc., or Moody's, and Fitch Ratings Ltd, or Fitch.
[3] | As of December 31, 2017.
[4] | Algerian Energy Company, SPA owns 49% of Skikda and Sadyt (Sociedad Anonima Depuracion y Tratamientos) owns the remaining 16.83%.
[5] | Algerian Energy Company, SPA owns 49% of Honaine and Sadyt (Sociedad Anonima Depuracion y Tratamientos) owns the remaining 25.5%.
[6] | On September 30, 2013, Liberty Interactive Corporation invested $300,000 thousand in Class A membership interests in exchange for the right to receive between 54.06% and 61.20% of taxable losses and distributions until such time as Liberty reaches a certain rate of return, or the "Flip Date", and 22.60% of taxable losses and distributions thereafter once certain conditions are met.
[7] | Itochu Corporation, a Japanese trading company, holds 30% of the shares in each of Solaben 2 and Solaben 3.
[8] | JGC, a Japanese engineering company, holds 13% of the shares in each of Solacor 1 and Solacor 2.
[9] | Instituto para la Diversificacion y Ahorro de la Energia ("Idae"), a Spanish state owned company, holds 20% of the shares in Seville PV.
[10] | Kaxu is owned by the Company (51%), Industrial Development Corporation of South Africa (29%) and Kaxu Community Trust (20%).
[11] | Refers to the credit rating of the Republic of South Africa. The offtaker is Eskom, which is a state-owned utility company in South Africa.
[12] | Refers to the credit rating of Uruguay, as UTE (Administracion Nacional de Usinas y Transmisoras Electricas) is unrated.

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