v3.21.2
Nature of the business, Main assets owned (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Nature of the business [Abstract]    
Short-term project debt $ 695,341 $ 312,346
ACT [Member]    
Nature of the business [Abstract]    
Type Efficient natural gas & heat  
Ownership 100.00%  
Location Mexico  
Currency [1] USD  
Capacity (gross) 300 MW  
Counterparty credit ratings [2] BBB/ Ba3/BB-  
COD [3] 2013  
Contract years left [4] 12 years  
Monterrey [Member]    
Nature of the business [Abstract]    
Type Efficient natural gas &heat  
Ownership 30.00%  
Location Mexico  
Currency [1] USD  
Capacity (gross) 142 MW  
Counterparty credit ratings [2] Not rated  
COD [3] 2018  
Contract years left [4] 17 years  
Calgary [Member]    
Nature of the business [Abstract]    
Type Efficient natural gas &heat  
Ownership 100.00%  
Location Canada  
Currency [1] CAD  
Capacity (gross) 55MWt  
Counterparty credit ratings [2],[5] ~41% A+ or higher  
COD [3] 2010  
Contract years left [4] 20 years  
ATN [Member]    
Nature of the business [Abstract]    
Type [6] Transmission line  
Ownership [6] 100.00%  
Location [6] Peru  
Currency [1],[6] USD  
Capacity (gross) [6] 379 miles  
Counterparty credit ratings [2],[6] BBB+/A3/BBB+  
COD [3],[6] 2011  
Contract years left [4],[6] 20 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 [3] 2014  
Contract years left [4] 23 years  
ATN 2 [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 [3] 2015  
Contract years left [4] 12 years  
Quadra 1 & 2 [Member]    
Nature of the business [Abstract]    
Type Transmission line  
Ownership 100.00%  
Location Chile  
Currency [1] USD  
Capacity (gross) 49 miles/32 miles  
Counterparty credit ratings [2] Not rated  
COD [3] 2014  
Quadra 1 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 14 years  
Quadra 2 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 14 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+/WR/A-  
COD [3] 2007  
Contract years left [4] 16 years  
Chile TL3 [Member]    
Nature of the business [Abstract]    
Type Transmission line  
Ownership 100.00%  
Location Chile  
Currency [1] USD  
Capacity (gross) 50 miles  
Counterparty credit ratings [2] A/A1/A-  
COD [3] 1993  
Skikda [Member]    
Nature of the business [Abstract]    
Type Water  
Ownership [7] 34.20%  
Location Algeria  
Currency [1] USD  
Capacity (gross) 3.5 M ft3/day  
Counterparty credit ratings [2] Not rated  
COD [3] 2009  
Contract years left [4] 13 years  
Skikda [Member] | Algerian Energy Company, SPA [Member]    
Nature of the business [Abstract]    
Percentage of non-controlling interests 49.00%  
Skikda [Member] | Sacyr Agua S.L. [Member]    
Nature of the business [Abstract]    
Percentage of non-controlling interests 16.83%  
Honaine [Member]    
Nature of the business [Abstract]    
Type Water  
Ownership [8] 25.50%  
Location Algeria  
Currency [1] USD  
Capacity (gross) 7 M ft3/day  
Counterparty credit ratings [2] Not rated  
COD [3] 2012  
Contract years left [4] 16 years  
Honaine [Member] | Algerian Energy Company, SPA [Member]    
Nature of the business [Abstract]    
Percentage of non-controlling interests 49.00%  
Honaine [Member] | Sacyr Agua S.L. [Member]    
Nature of the business [Abstract]    
Percentage of non-controlling interests 25.50%  
Tenes [Member]    
Nature of the business [Abstract]    
Type Water  
Ownership [9] 51.00%  
Location Algeria  
Currency [1] USD  
Capacity (gross) 7 M ft3/day  
Counterparty credit ratings [2] Not rated  
COD [3] 2015  
Contract years left [4] 19 years  
Tenes [Member] | Algerian Energy Company, SPA [Member]    
Nature of the business [Abstract]    
Percentage of non-controlling interests 49.00%  
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 [3] 2007&2009  
PS10 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 11 years  
PS20 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 13 years  
Solana [Member]    
Nature of the business [Abstract]    
Type Renewable (Solar)  
Ownership 100.00%  
Location Arizona (USA)  
Currency [1] USD  
Capacity (gross) 280 MW  
Counterparty credit ratings [2] A-/A2/A-  
COD [3] 2013  
Contract years left [4] 22 years  
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] BB-/WR/BB  
COD [3] 2014  
Contract years left [4] 18 years  
Chile PV I [Member]    
Nature of the business [Abstract]    
Type Renewable (Solar)  
Ownership [10] 35.00%  
Location Chile  
Currency [1] USD  
Capacity (gross) 55 MW  
Counterparty credit ratings [2] N/A  
COD [3] 2016  
Percentage of non-controlling interests 65.00%  
Chile PV 2 [Member]    
Nature of the business [Abstract]    
Type Renewable (Solar)  
Ownership [10] 35.00%  
Location Chile  
Currency [1] USD  
Capacity (gross) 40 MW  
Counterparty credit ratings [2] N/A  
COD [3] 2017  
Percentage of non-controlling interests 65.00%  
Solaben 2 & 3 [Member]    
Nature of the business [Abstract]    
Type Renewable (Solar)  
Ownership [11] 70.00%  
Location Spain  
Currency [1] Euro  
Capacity (gross) 2x50 MW  
Counterparty credit ratings [2] A/Baa1/A-  
COD [3] 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 [4] 16 years  
Solaben 3 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 16 years  
Solacor 1 & 2 [Member]    
Nature of the business [Abstract]    
Type Renewable (Solar)  
Ownership [12] 87.00%  
Location Spain  
Currency [1] Euro  
Capacity (gross) 2x50 MW  
Counterparty credit ratings [2] A/Baa1/A-  
COD [3] 2012  
Solacor 1 & 2 [Member] | JGC [Member]    
Nature of the business [Abstract]    
Percentage of non-controlling interests 13.00%  
Solacor 1 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 16 years  
Solacor 2 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 16 years  
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 [3] 2011  
Helioenergy 1 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 15 years  
Helioenergy 2 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 15 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 [3] 2012  
Helios 1 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 16 years  
Helios 2 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 16 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 [3] 2010  
Solnova 1 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 14 years  
Solnova 3 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 14 years  
Solnova 4 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 14 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 [3] 2013  
Solaben 1 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 17 years  
Solaben 6 [Member]    
Nature of the business [Abstract]    
Contract years left [4] 17 years  
Seville PV [Member]    
Nature of the business [Abstract]    
Type Renewable (Solar)  
Ownership [13] 80.00%  
Location Spain  
Currency [1] Euro  
Capacity (gross) 1 MW  
Counterparty credit ratings [2] A/Baa1/A-  
COD [3] 2006  
Contract years left [4] 15 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 [14] 51.00%  
Location South Africa  
Currency [1] Rand  
Capacity (gross) 100 MW  
Counterparty credit ratings [2],[15] BB-/Ba2/BB-  
COD [3] 2015  
Contract years left [4] 14 years  
Short-term project debt $ 359,000  
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%  
Elkhorn Valley [Member]    
Nature of the business [Abstract]    
Type Renewable (Wind)  
Ownership 49.00%  
Location Oregon (USA)  
Currency [1] USD  
Capacity (gross) 101 MW  
Counterparty credit ratings [2] BBB/A3/--  
COD [3] 2007  
Contract years left [4] 7 years  
Prairie Star [Member]    
Nature of the business [Abstract]    
Type Renewable (Wind)  
Ownership 49.00%  
Location Minnesota (USA)  
Currency [1] USD  
Capacity (gross) 101 MW  
Counterparty credit ratings [2] --/A3/A-  
COD [3] 2007  
Contract years left [4] 7 years  
Twin Groves II [Member]    
Nature of the business [Abstract]    
Type Renewable (Wind)  
Ownership [13] 49.00%  
Location Illinois (USA)  
Currency [1] USD  
Capacity (gross) 198 MW  
Counterparty credit ratings [2] BBB-/Baa2/BBB  
COD [3] 2008  
Contract years left [4] 5 years  
Lone Star II [Member]    
Nature of the business [Abstract]    
Type Renewable (Wind)  
Ownership [14] 49.00%  
Location Texas (USA)  
Currency [1] USD  
Capacity (gross) 196 MW  
Counterparty credit ratings [2],[15] Not rated  
COD [3] 2008  
Contract years left [4] 2 years  
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],[16] BBB/Baa2/BBB-  
COD [3] 2014  
Contract years left [4] 13 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],[16] BBB/Baa2/BBB-  
COD [3] 2014  
Contract years left [4] 13 years  
Melowind [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] BBB/Baa2/BBB-  
COD [3] 2015  
Contract years left [4] 15 years  
Coso [Member]    
Nature of the business [Abstract]    
Type Renewable (Geothermal)  
Ownership 100.00%  
Location California (USA)  
Currency [1] USD  
Capacity (gross) 135 MW  
Counterparty credit ratings [2],[17] Investment Grade  
COD [3] 1987-1989  
Contract years left [4] 19 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 [3] 2012  
Contract years left [4] 12 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] Commercial Operation Date
[4] As of June 30, 2021.
[5] Refers to the credit rating of diversified mix of 22 high credit quality clients (~41%+ rating or higher, the rest is unrated).
[6] Including ATN Expansion 1 & 2.
[7] Algerian Energy Company, SPA owns 49% of Skikda and Sacyr Agua, S.L. owns the remaining 16.83%.
[8] Algerian Energy Company, SPA owns 49% of Honaine and Sacyr Agua, S.L. owns the remaining 25.5%.
[9] Algerian Energy Company, SPA owns 49% of Tenes.
[10] 65% of the shares in Chile PV 1 and Chile PV 2 is indirectly held by financial partners through the renewable energy platform of the Company in Chile.
[11] Itochu Corporation, a Japanese trading company, holds 30% of the shares in each of Solaben 2 and Solaben 3.
[12] JGC, a Japanese engineering company, holds 13% of the shares in each of Solacor 1 and Solacor 2.
[13] Instituto para la Diversificación y Ahorro de la Energía (“Idae”), a Spanish state-owned company, holds 20% of the shares in Seville PV.
[14] Kaxu is owned by the Company (51%), Industrial Development Corporation of South Africa (29%) and Kaxu Community Trust (20%).
[15] 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.
[16] Refers to the credit rating of Uruguay, as UTE (Administración Nacional de Usinas y Transmisoras Eléctricas) is unrated.
[17] Refers to the credit rating of Southern California Public Power Authority, with AA- Rating from Fitch, and two Community Choice Aggregators: Silicon Valley Clean Energy and Monterrey Bar Community Power, both with A Rating from S&P.