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Nature of the business, Assets under construction (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2023
Agreement
h
Jul. 31, 2023
Substation
Jul. 31, 2022
mi
May 31, 2022
USD ($)
Asset
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Nov. 30, 2022
Nov. 16, 2022
USD ($)
Dec. 31, 2021
USD ($)
Assets under construction or ready to start construction [Abstract]                  
Investments accounted for using equity method         $ 230,307 $ 260,031     $ 294,581
Percentage of interest acquired             49.00%    
Chile PV 1 and PV2 events of default [Abstract]                  
Current project debt         $ 387,387 $ 326,534      
Coso Batteries 1 and Coso Batteries 2 [Member]                  
Assets under construction or ready to start construction [Abstract]                  
Period of PPA         15 years        
Number of tooling agreements | Agreement 2                
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)         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         $ 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         $ 45,000        
Chile PMGD [Member]                  
Assets under construction or ready to start construction [Abstract]                  
Type         Solar PV        
Location         Chile        
Capacity (gross) [1]         80 MW        
Expected COD         2024-2025        
Investments accounted for using equity method         $ 30,000 [2]     $ 30,000  
Off-taker         Regulated        
Percentage of interest acquired               49.00%  
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        
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]         $ 30,000        
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        
Honda 1 and 2 [Member]                  
Assets under construction or ready to start construction [Abstract]                  
Capacity (gross)       20 MW          
Expected COD         December 2023        
Investments accounted for using equity method       $ 5,500          
Period of PPA         7 years        
Number of PV assets | Asset       2          
Percentage of interest acquired       50.00%          
Honda 1 [Member]                  
Assets under construction or ready to start construction [Abstract]                  
Period of PPA         7 years        
Percentage of interest acquired         50.00%        
Honda 2 [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]         Enel Colombia        
Percentage of interest acquired         50.00%        
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        
Percentage of interest acquired         50.00%        
Chile PV 1 and PV2 [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]                  
Current project debt         $ 71,000        
[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 Honda 2 and Apulo 1.