v3.24.1.u1

Nature of the business, Assets under construction or ready to start construction (Details) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Apr. 30, 2024 h | Oct. 31, 2023 h Agreement | Jul. 31, 2023 Substation | Nov. 30, 2022 USD ($) | Jul. 31, 2022 mi | May 31, 2022 USD ($) Asset | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Assets under construction or ready to start construction [Abstract] |  |  |  |  |  |  |  |  |  |
Investments accounted for using equity method |  |  |  |  |  |  |  | $ 225,732 |  | $ 230,307
Chile PV 1 and PV2 events of default [Abstract] |  |  |  |  |  |  |  |  |  |
Short-term project debt |  |  |  |  |  |  |  | $ 424,457 |  | 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 |  |  | 80 MW | [1] |
Expected COD |  |  |  |  |  |  |  | 2024-2025 |  |
Investments accounted for using equity method |  |  |  |  | $ 30,000 |  |  | $ 30,000 | [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 |  |
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 |  |  |
Percentage of interest acquired |  |  |  |  |  |  | 50.00% |  |  |
Period of PPA |  |  |  |  |  |  |  | 7 years |  |
Number of PV assets | Asset |  |  |  |  |  |  | 2 |  |  |
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 |  |
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 |  |  |  |  |  |  |  | $ 71,000 |  | $ 71,000
Chile PV 3 expansion [Member] |  |  |  |  |  |  |  |  |  |
Assets under construction or ready to start construction [Abstract] |  |  |  |  |  |  |  |  |  |
Type |  |  |  |  |  |  |  | Battery storage |  |
Location |  |  |  |  |  |  |  | Chile |  |
Capacity (gross) | [1] |  |  |  |  |  |  | 142 MWh |  |
Expected COD |  |  |  |  |  |  |  | 2024 |  |
Off-taker |  |  |  |  |  |  |  | Emoac |  |
Chile PV 3 expansion [Member] | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |
Assets under construction or ready to start construction [Abstract] |  |  |  |  |  |  |  |  |  |
Capacity (gross) |  | 142 MWh |  |  |  |  |  |  |  |
Period of PPA |  | 10 years |  |  |  |  |  |  |  |
Duration capacity of battery | h |  | 2 |  |  |  |  |  |  |  |
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 Honda 2 and Apulo 1.

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