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Nature of the business, Assets under construction or ready to start construction (Details)
$ in Thousands
1 Months Ended 6 Months Ended
Oct. 31, 2023
h
Agreement
Jul. 31, 2023
Substation
Nov. 30, 2022
USD ($)
Jul. 31, 2022
mi
Jun. 30, 2024
USD ($)
Dec. 31, 2023
USD ($)
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method         $ 221,558 $ 230,307
Chile PV 1 and PV2 events of default [Abstract]            
Short-term project debt         $ 400,529 387,387
Coso Batteries 1 and Coso Batteries 2 [Member]            
Assets under construction or ready to start construction [Abstract]            
Number of tooling agreements | Agreement 2          
Period of PPA         15 years  
Coso Batteries 1 [Member]            
Assets under construction or ready to start construction [Abstract]            
Type         Battery Storage  
Location         California, US  
Capacity (gross) [1]         100 MWh  
Expected COD         2025  
Off-taker         Investment grade utility  
Duration capacity of battery | h 4          
Coso Batteries 1 [Member] | Bottom of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method [2]         $ 40,000  
Coso Batteries 1 [Member] | Top of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method [2]         $ 50,000  
Coso Batteries 2 [Member]            
Assets under construction or ready to start construction [Abstract]            
Type         Battery Storage  
Location         California, US  
Capacity (gross) [1]         80 MWh  
Expected COD         2025  
Off-taker         Investment grade utility  
Duration capacity of battery | h 4          
Coso Batteries 2 [Member] | Bottom of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method [2]         $ 35,000  
Coso Batteries 2 [Member] | Top of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method [2]         $ 45,000  
Chile PMGD [Member]            
Assets under construction or ready to start construction [Abstract]            
Type         Solar PV  
Location         Chile  
Capacity (gross)         80 MW  
Expected COD         2024-2025  
Investments accounted for using equity method     $ 33,000   $ 33,000 [2]  
Off-taker         Regulated  
Percentage of interest acquired     49.00%      
Percentage of economic rights     70.00%      
Chile PMGD [Member] | Bottom of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Expected COD         2024  
Chile PMGD [Member] | Top of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Capacity (gross)         9MW  
Expected COD         2025  
ATN Expansion 3 [Member]            
Assets under construction or ready to start construction [Abstract]            
Type         Transmission Line  
Location         Peru  
Capacity (gross) [1]         2.4miles 220kV  
Expected COD     2024   2024  
Investments accounted for using equity method [2]         $ 12,000  
Off-taker         Conelsur  
Period of PPA         17 years  
Length of transmission lines | mi       2.4    
ATN Expansion 1 [Member]            
Assets under construction or ready to start construction [Abstract]            
Type         Transmission Line  
Location         Peru  
Capacity (gross) [1]         n.a. (substation)  
Expected COD         2025  
Investments accounted for using equity method [2]         $ 31,000  
Off-taker         Republic of Peru  
Period of PPA         30 years  
Number of substations | Substation   2        
Commercial operation end date         2044  
Remaining operation period of concessional asset         9 years  
Apulo 1 [Member]            
Assets under construction or ready to start construction [Abstract]            
Type [3]         Solar PV  
Location [3]         Colombia  
Capacity (gross) [1],[3]         10 MW  
Expected COD [3]         2024  
Investments accounted for using equity method [2],[3]         $ 5,500  
Off-taker [3]         0  
Percentage of interest acquired         50.00%  
Chile PV 1 and PV 2 [Member]            
Assets under construction or ready to start construction [Abstract]            
Percentage of interest acquired         35.00%  
Chile PV 1 and PV2 events of default [Abstract]            
Short-term project debt         $ 73,000 $ 71,000
Chile PV 3 expansion [Member]            
Assets under construction or ready to start construction [Abstract]            
Type         Battery storage  
Location         Chile  
Capacity (gross)         142 MWh  
Expected COD         2024  
Off-taker         Emoac  
Period of PPA         10 years  
Chile PV 3 expansion [Member] | Bottom of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method [2]         $ 14,000  
Chile PV 3 expansion [Member] | Top of Range [Member]            
Assets under construction or ready to start construction [Abstract]            
Investments accounted for using equity method [2]         $ 15,000  
[1] Includes nominal capacity on a 100% basis, not considering Atlantica’s ownership.
[2] Corresponds to the expected investment by Atlantica.
[3] Atlantica owns 50% of the shares in Apulo 1.