Atlantica Sustainable Infrastructure (AY) 6-K 9 Nov 22 Current report (foreign) Financial data

Document and Entity Information

Document and Entity Information	9 Months Ended
	Sep. 30, 2022
Cover [Abstract]
Document Type	6-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2022
Current Fiscal Year End Date	--12-31
Entity Registrant Name	Atlantica Sustainable Infrastructure plc
Entity File Number	001-36487
Entity Address, Address Line One	GREAT WEST HOUSE, GW1, 17TH FLOOR
Entity Address, Address Line Two	GREAT WEST ROAD
Entity Address, City or Town	BRENTFORD
Entity Address, Country	GB
Entity Address, Postal Zip Code	TW8 9DF
Entity Central Index Key	0001601072

Consolidated condensed statemen

Consolidated condensed statements of financial position - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Non-current assets
Contracted concessional assets	$ 7,338,449,000	$ 8,021,568,000
Investments carried under the equity method	268,151,000	294,581,000
Financial investments	186,875,000	96,608,000
Deferred tax assets	118,632,000	172,268,000
Total non-current assets	7,912,107,000	8,585,025,000
Current assets
Inventories	31,865,000	29,694,000
Trade and other receivables	230,716,000	307,143,000
Financial investments	190,069,000	207,379,000
Cash and cash equivalents	781,575,000	622,689,000
Total current assets	1,234,225,000	1,166,905,000
Total assets	9,146,332,000	9,751,930,000
Equity attributable to the Company
Share capital	11,605,512	11,240,000
Share premium	986,594,000	872,011,000
Capital reserves	866,715,000	1,020,027,000
Other reserves	333,739,000	171,272,000
Accumulated currency translation differences	(197,026,000)	(133,450,000)
Accumulated deficit	(402,519,000)	(398,701,000)
Non-controlling interests	206,259,000	206,206,000
Total equity	1,805,368,000	1,748,605,000
Non-current liabilities
Long-term corporate debt	934,795,000	995,190,000
Long-term project debt	4,249,902,000	4,387,674,000
Grants and other liabilities	1,242,059,000	1,263,744,000
Derivative liabilities	50,536,000	223,453,000
Deferred tax liabilities	293,757,000	308,859,000
Total non-current liabilities	6,771,049,000	7,178,920,000
Current liabilities
Short-term corporate debt	20,745,000	27,881,000
Short-term project debt	372,038,000	648,519,000
Trade payables and other current liabilities	135,694,000	113,907,000
Income and other tax payables	41,438,000	34,098,000
Total current liabilities	569,915,000	824,405,000
Total equity and liabilities	$ 9,146,332,000	$ 9,751,930,000

Consolidated condensed income s

Consolidated condensed income statements - USD ($) shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Consolidated condensed income statements [Abstract]
Revenue	$ 858,405	$ 940,418
Other operating income	54,860	57,597
Employee benefit expenses	(58,766)	(59,105)
Depreciation, amortization, and impairment charges	(374,059)	(334,916)
Other operating expenses	(261,435)	(320,873)
Operating profit	219,005	283,121
Financial income	3,367	1,848
Financial expense	(244,305)	(277,000)
Net exchange differences	13,837	2,046
Other financial income, net	2,208	21,684
Financial expense, net	(224,893)	(251,422)
Share of profit of associates carried under the equity method	20,668	4,245
Profit before income tax	14,780	35,944
Income tax	(12,975)	(42,390)
Profit/(loss) for the period	1,805	(6,446)
Profit attributable to non-controlling interests	(11,278)	(11,720)
Loss for the period attributable to the Company	$ (9,473)	$ (18,166)
Weighted average number of ordinary shares outstanding - basic (in shares)	114,236	110,749
Weighted average number of ordinary shares outstanding - diluted (in shares)	118,197	114,156
Basic earnings per share (in dollars per share)	$ (0.08)	$ (0.16)
Diluted earnings per share (in dollars per share)	$ (0.08)	$ (0.16)

Consolidated condensed statem_2

Consolidated condensed statements of comprehensive income - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Consolidated condensed statements of comprehensive income [Abstract]
Profit/(loss) for the period	$ 1,805	$ (6,446)
Items that may be subject to transfer to income statement
Change in fair value of cash flow hedges	209,108	15,262
Currency translation differences	(76,915)	(27,901)
Tax effect	(52,498)	(4,632)
Net income/(expense) recognized directly in equity	79,695	(17,271)
Cash flow hedges	31,473	44,643
Tax effect	(7,868)	(11,161)
Transfers to income statement	23,605	33,482
Other comprehensive income	103,300	16,211
Total comprehensive income for the period	105,105	9,765
Total comprehensive income attributable to non-controlling interests	(14,114)	(8,981)
Total comprehensive income attributable to the Company	$ 90,991	$ 784

Consolidated condensed statem_3

Consolidated condensed statements of changes in equity - USD ($) $ in Thousands	Total	Total Equity Attributable to Company [Member]	Share Capital [Member]	Share Premium [Member]	Capital Reserves [Member]	Other Reserves [Member]	Accumulated Currency Translation Differences [Member]	Accumulated Deficit [Member]	Non-controlling Interests [Member]
Balance, beginning of period at Dec. 31, 2020	$ 1,740,881	$ 1,527,382	$ 10,667	$ 1,011,743	$ 881,745	$ 96,641	$ (99,925)	$ (373,489)	$ 213,499
Profit/(loss) for the nine -month period after taxes	(6,446)	(18,166)	0	0	0	0	0	(18,166)	11,720
Change in fair value of cash flow hedges	59,905	56,493	0	0	0	66,553	0	(10,060)	3,412
Currency translation differences	(27,901)	(22,264)	0	0	0	0	(22,264)	0	(5,637)
Tax effect	(15,793)	(15,279)	0	0	0	(15,279)	0	0	(514)
Other comprehensive income	16,211	18,950	0	0	0	51,274	(22,264)	(10,060)	(2,739)
Total comprehensive income for the period	9,765	784	0	0	0	51,274	(22,264)	(28,226)	8,981
Capital increase (Note 13)	154,574	154,574	481	24,526	129,567	0	0	0	0
Reduction of Share Premium (Note 13)	0	0	0	(200,000)	200,000	0	0	0	0
Business combinations (Note 5)	8,287	0	0	0	0	0	0	0	8,287
Share-based compensation (Note 13)	12,895	12,895	0	0	0	0	0	12,895	0
Distributions (Note 13)	(164,813)	(141,968)	0	0	(141,968)	0	0	0	(22,845)
Balance, end of period at Sep. 30, 2021	1,761,589	1,553,667	11,148	836,269	1,069,344	147,915	(122,189)	(388,820)	207,922
Balance, beginning of period at Dec. 31, 2021	1,748,605	1,542,399	11,240	872,011	1,020,027	171,272	(133,450)	(398,701)	206,206
Profit/(loss) for the nine -month period after taxes	1,805	(9,473)	0	0	0	0	0	(9,473)	11,278
Change in fair value of cash flow hedges	240,581	222,211	0	0	0	220,638	0	1,573	18,370
Currency translation differences	(76,915)	(63,576)	0	0	0	0	(63,576)	0	(13,339)
Tax effect	(60,366)	(58,171)	0	0	0	(58,171)	0	0	(2,195)
Other comprehensive income	103,300	100,464	0	0	0	162,467	(63,576)	1,573	2,836
Total comprehensive income for the period	105,105	90,991	0	0	0	162,467	(63,576)	(7,900)	14,114
Capital increase (Note 13)	113,099	113,099	366	114,583	(1,850)	0	0	0	0
Business combinations (Note 5)	14,300	0	0	0	0	0	0	0	14,300
Share-based compensation (Note 13)	4,082	4,082	0	0	0	0	0	4,082	0
Distributions (Note 13)	(179,823)	(151,462)	0	0	(151,462)	0	0	0	(28,361)
Balance, end of period at Sep. 30, 2022	$ 1,805,368	$ 1,599,109	$ 11,606	$ 986,594	$ 866,715	$ 333,739	$ (197,026)	$ (402,519)	$ 206,259

Consolidated condensed cash flo

Consolidated condensed cash flows statements - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Consolidated condensed cash flows statements [Abstract]
Profit/(loss) for the period	$ 1,805	$ (6,446)
Financial expense and non-monetary adjustments	628,279	661,992
Profit/(loss) for the period adjusted by non-monetary items	630,084	655,546
Changes in working capital	47,778	(4,576)
Net interest and income tax paid	(162,136)	(209,030)
Net cash provided by operating activities	515,726	441,940
Acquisitions of subsidiaries and entities under the equity method	(45,553)	(337,539)
Investments in operating concessional assets	(27,890)	(9,156)
Investments in assets under development or construction	(30,406)	(2,754)
Distributions from entities under the equity method	56,202	24,615
Other non-current assets/liabilities	(419)	1,937
Net cash used in investing activities	(48,066)	(322,897)
Proceeds from Project debt	0	11,149
Proceeds from Corporate debt	57,503	409,023
Repayment of Project debt	(196,311)	(256,170)
Repayment of Corporate debt	(59,573)	(361,154)
Dividends paid to Company's shareholders	(151,462)	(141,968)
Dividends paid to non-controlling interests	(26,442)	(23,327)
Capital increase	113,167	154,482
Net cash used in financing activities	(263,118)	(207,965)
Net increase/(decrease) in cash and cash equivalents	204,542	(88,922)
Cash and cash equivalents at beginning of the period	622,689	868,501
Translation differences in cash or cash equivalent	(45,656)	(16,034)
Cash and cash equivalents at end of the period	$ 781,575	$ 763,545

Nature of the business

Nature of the business	9 Months Ended
	Sep. 30, 2022
Nature of the business [Abstract]
Nature of the business	Note 1. - Nature of the business Atlantica Sustainable Infrastructure plc (“Atlantica” or the “Company”) is a sustainable infrastructure company with a majority of its business in renewable energy assets. Atlantica currently owns, manages and invests in renewable energy, storage, efficient natural gas and heat, electric transmission lines and water assets focused on North America (the United States, Canada and Mexico), South America (Peru, Chile, Colombia and Uruguay) and EMEA (Spain, Italy, Algeria and South Africa). Atlantica’s shares trade on the NASDAQ Global Select Market under the symbol “AY”. On January 17, 2022, the Company closed the acquisition of Chile TL4, a 63-mile transmission line and 2 substations in Chile for a total equity investment of $39 million (Note 5). The Company expects to make an expansion of the line in 2023-2024, which would represent an additional investment of approximately $8 million. The asset has fully contracted revenues in US dollars, with inflation escalation and 50-year contract life. The off-takers are several mini-hydro plants that receive contracted or regulated payments. On April 4, 2022, the Company closed the acquisition of Italy PV 4, a 3.6 MW solar portfolio in Italy for a total equity investment of $3.7 million. The asset has regulated revenues under a feed in tariff until 2031. On September the Company completed its investment through its Chilean renewable energy platform in a 73 MW solar PV plant, Chile PV located in Chile, for corresponding to a of equity interest (Note . The Company expects to install batteries of approximately MWh in The asset currently has part of its revenue based on capacity payments. Adding storage would increase the portion of capacity payments. During the year 2021, the Company completed the following acquisitions: - In 2021, the Company closed the acquisition in two stages of the 85% Rioglass Solar Holding S.A. (“Rioglass”) - On April 7, 2021, the Company closed the acquisition of Coso, a 135 MW geothermal plant in the United States The total equity investment was - On May 14, 2021, the Company closed the acquisition of Calgary District Heating, a district heating asset in Canada for a total equity investment of $22.9 million (Note 5). - On June 16, 2021, the Company acquired a 49% interest in Vento II, a 596 MW wind portfolio in the United States, for a total equity investment net of cash consolidated at the transaction date of approximately $180.7 million (Note 7). EDP Renewables owns the remaining 51%. The assets have PPAs with investment grade off-takers with a five-year average remaining contract life at the time of the investment. - On August 6, 2021, , two 3.7 9 - On November 25, 2021, the Company closed the acquisition of La Sierpe, a 20 MW solar PV plant in Colombia for a total equity investment of $23.5 million (Note 5). The asset was acquired under a Right of First Offer (“ROFO”) agreement with Liberty GES. In addition, the Company has currently three assets under construction: - Albisu, a 10 MW PV asset wholly owned by the Company, currently under construction near the city of Salto (Uruguay). The asset has a 15-year PPA with Montevideo Refrescos, S.R.L, a subsidiary of Coca-Cola Femsa., S.A.B. de C.V. The PPA is denominated in local currency with a maximum and minimum price in U.S. dollars and is adjusted monthly based on a formula referring to U.S. Producer Price Index (PPI), Uruguay’s Consumer Price Index (CPI) and the applicable UYU/U.S. dollar exchange rate. - La Tolua and Tierra Linda, two solar PV assets in Colombia with a combined capacity of 30 MW. Each plant has a 15-year PPA in local currency indexed to local inflation with Synermin, the largest independent electricity wholesaler in Colombia. Additionally, the Company has recently started the construction of three additional PV plants with a total capacity of MW. The following table provides an overview of the main contracted concessional assets the Company owned or had an interest in as of September 30, 2022: Assets Type Ownership Location Currency (9) Capacity (Gross) Counterparty Credit Ratings (10) COD* Contract Years Remaining (16) Solana Renewable (Solar) 100% Arizona (USA) USD 280 MW BBB+/A3/BBB+ 2013 21 Mojave Renewable (Solar) 100% California (USA) USD 280 MW BB-/ -- /BB 2014 17 Coso Renewable (Geothermal) 100% California (USA) USD 135 MW Investment Grade (11) 1987-1989 17 Elkhorn Valley Renewable (Wind) 49% Oregon (USA) USD 101 MW BBB/Baa1/-- 2007 5 Prairie Star Renewable (Wind) 49% Minnesota (USA) USD 101 MW --/A3/A- 2007 5 Twin Groves II Renewable (Wind) 49% Illinois (USA) USD 198 MW BBB/Baa2/-- 2008 3 Lone Star II Renewable (Wind) 49% Texas (USA) USD 196 MW Not rated 2008 - Chile PV 1 Renewable (Solar) 35% (1) Chile USD 55 MW N/A 2016 N/A Chile PV 2 Renewable (Solar) 35% (1) Chile USD 40 MW Not rated 2017 8 Chile PV 3 Renewable (Solar) 35% (1) Chile USD 73 MW Not rated 2014 N/A La Sierpe Renewable (Solar) 100% Colombia COP 20 MW Not rated 2021 13 Palmatir Renewable (Wind) 100% Uruguay USD 50 MW BBB/Baa2/BBB- (12) 2014 12 Cadonal Renewable (Wind) 100% Uruguay USD 50 MW BBB/Baa2/BBB- (12) 2014 12 Melowind Renewable (Wind) 100% Uruguay USD 50 MW BBB/Baa2/BBB- 2015 13 Mini-Hydro Renewable (Hydraulic) 100% Peru USD 4 MW BBB/Baa1/BBB 2012 10 Solaben 2 & 3 Renewable (Solar) 70% (2) Spain Euro 2x50 MW A/Baa1/A- 2012 15/15 Solacor 1 & 2 Renewable (Solar) 87% (3) Spain Euro 2x50 MW A/Baa1/A- 2012 14/14 PS10 & PS20 Renewable (Solar) 100% Spain Euro 31 MW A/Baa1/A- 2007&2009 10/12 Helioenergy 1 & 2 Renewable (Solar) 100% Spain Euro 2x50 MW A/Baa1/A- 2011 14/14 Helios 1 & 2 Renewable (Solar) 100% Spain Euro 2x50 MW A/Baa1/A- 2012 15/15 Solnova 1, 3 & 4 Renewable (Solar) 100% Spain Euro 3x50 MW A/Baa1/A- 2010 13/13/13 Solaben 1 & 6 Renewable (Solar) 100% Spain Euro 2x50 MW A/Baa1/A- 2013 16/16 Seville PV Renewable (Solar) 80% (4) Spain Euro 1 MW A/Baa1/A- 2006 13 Italy PV 1 Renewable (Solar) 100% Italy Euro 1.6 MW BBB/Baa3/BBB 2010 8 Italy PV 2 Renewable (Solar) 100% Italy Euro 2.1 MW BBB/Baa3/BBB 2011 9 Italy PV 3 Renewable (Solar) 100% Italy Euro 2.5 MW BBB/Baa3/BBB 2012 10 Italy PV 4 Renewable (Solar) 100% Italy Euro 3.6 MW BBB/Baa3/BBB 2011 9 Kaxu Renewable (Solar) 51% (5) South Africa Rand 100 MW BB-/Ba2/BB- (13) 2015 12 Calgary Efficient natural gas &heat 100% Canada CAD 55 MWt ~41% A+ or higher (14) 2010 18 ACT Efficient natural gas & heat 100% Mexico USD 300 MW BBB/B1/BB- 2013 11 Monterrey Efficient natural gas &heat 30% Mexico USD 142 MW Not rated 2018 24 ATN (15) Transmission line 100% Peru USD 379 miles BBB/Baa1/BBB 2011 18 ATS Transmission line 100% Peru USD 569 miles BBB/Baa1/BBB 2014 21 ATN 2 Transmission line 100% Peru USD 81 miles Not rated 2015 11 Quadra 1 & 2 Transmission line 100% Chile USD 49 miles/32 miles Not rated 2014 13/13 Palmucho Transmission line 100% Chile USD 6 miles BBB/ -- /A- 2007 15 Chile TL3 Transmission line 100% Chile USD 50 miles A/A2/A- 1993 N/A Chile TL4 Transmission line 100% Chile USD 63 miles Not rated 2016 49 Skikda Water 34.20% (6) Algeria USD 3.5 M ft3/day Not rated 2009 11 Honaine Water 25.50% (7) Algeria USD 7 M ft3/day Not rated 2012 15 Tenes Water 51% (8) Algeria USD 7 M ft3/day Not rated 2015 18 (1) 65% of the shares in Chile PV 1, Chile PV 2 and Chile PV 3 are indirectly held by financial partners through the renewable energy platform of the Company in Chile. (2) Itochu Corporation holds 30% of the shares in each of Solaben 2 and Solaben 3. (3) JGC holds 13% of the shares in each of Solacor 1 and Solacor 2. (4) Instituto para la Diversificación y Ahorro de la Energía (“Idae”) holds 20% of the shares in Seville PV. (5) Kaxu is owned by the Company (51%), Industrial Development Corporation of South Africa (29%) and Kaxu Community Trust (20%). (6) Algerian Energy Company, SPA owns 49% of Skikda and Sacyr Agua, S.L. owns the remaining 16.8%. (7) Algerian Energy Company, SPA owns 49% of Honaine and Sacyr Agua, S.L. owns the remaining 25.5%. (8) Algerian Energy Company, SPA owns 49% of Tenes. (9) Certain contracts denominated in U.S. dollars are payable in local currency. (10) 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. (11) Refers to the credit rating of two Community Choice Aggregators: Silicon Valley Clean Energy and Monterrey Bar Community Power, both with A Rating from S&P and Southern California Public Power Authority. The third off-taker is not rated. (12) Refers to the credit rating of Uruguay, as UTE (Administración Nacional de Usinas y Transmisoras Eléctricas) is unrated. (13) Refers to the credit rating of the Republic of South Africa. The off-taker is Eskom, which is a state-owned utility company in South Africa. (14) Refers to the credit rating of a diversified mix of 22 high credit quality clients (~41% A+ rating or higher, the rest is unrated). (15) Including ATN Expansion 1 & 2. (16) As of September (*) Commercial Operation Date. The project financing arrangement for Kaxu contained a cross-default provision related to Abengoa S.A.’s insolvency filing. In September 2021, the Company obtained a waiver for such cross-default which became effective on March 31, 2022, following the transfer of the employees performing the O&M in Kaxu from an Abengoa subsidiary to an Atlantica subsidiary and other conditions. As a result, as of March 31, 2022, the Company had again an unconditional right to defer the settlement of the debt for at least twelve months, and therefore the debt previously presented as current (as of December 31, 2021) had been reclassified as non-current at that date in accordance with the financing agreements in these Consolidated Condensed Interim Financial Statements (Note 15). As expected, the Administration in Spain has recently approved measures to adjust the regulated revenue component for renewable energy plants, following the increase since mid-2021 in the billings of these plants for the sale of electricity in the market. On March 30, 2022, the Royal Decree Law 6/2022 was published, adopting urgent measures in response to the economic and social consequences of the war in Ukraine. This Royal Decree Law contains a bundle of measures in diverse fields, including those targeted at containing the sharp rise in the prices of gas and electricity. It includes temporary changes to the detailed regulated components of revenue received by the solar assets of the Company in Spain, which are applicable from January 1, 2022. The proposed parameters for the year 2022 were published on May 12, 2022, and, although they are still subject to comments, the Company does not expect any significant changes. As a result, the Company has recorded its revenue for the nine-month period up to September 30, 2022, following these new parameters. In addition, on May 14, 2022, the Royal Decree Law 10/2022 was published, including additional details on the changes to the regulated components of revenue. The changes to the detailed regulated components of revenue received by the solar assets of the Company in Spain are as follows: - The statutory half-period of three years from 2020 to 2022 has been split into two statutory half-periods (1) from January 1, 2020 until December 31, 2021 and (2) calendar year 2022. As a result, the fixed monthly payment based on installed capacity - The market price assumed by the regulation for calendar year 2022 was changed from €48.82 per MWh to an expected price of €121.9 per MWh. As a result, the variable payment based on net electricity produced (Remuneration on Operation or Ro) is also being adjusted. The proposed Ro for the year 2022 is zero €/MWh reflecting the fact that market prices for the power sold in the market are significantly higher. - For the three-year half period starting on January 1, 2023, and ending on December 31, 2025, the adjustment for electricity price deviations in the preceding statutory half period will be progressively modified to take into account a mix of actual market prices and future market prices.

Basis of preparation

Basis of preparation	9 Months Ended
	Sep. 30, 2022
Basis of preparation [Abstract]
Basis of preparation	Note 2. - Basis of preparation The accompanying Consolidated Condensed Interim Financial Statements represent the consolidated results of the Company and its subsidiaries. The Company’s annual consolidated financial statements as of December 31, 2021, were approved by the Board of Directors on February 25, 2022. These Consolidated Condensed Interim Financial Statements are presented in accordance with International Accounting Standards (“IAS”) 34, “Interim Financial Reporting”. In accordance with IAS 34, interim financial information is prepared solely in order to update the most recent annual consolidated financial statements prepared by the Company, placing emphasis on new activities, occurrences and circumstances that have taken place during the nine-month period ended September 30, 2022, and not duplicating the information previously published in the annual consolidated financial statements for the year ended December 31, 2021. Therefore, the Consolidated Condensed Interim Financial Statements do not include all the information that would be required in a complete set of consolidated financial statements prepared in accordance with the IFRS-IASB (“International Financial Reporting Standards-International Accounting Standards Board”). In view of the above, for an adequate understanding of the information, these Consolidated Condensed Interim Financial Statements must be read together with Atlantica’s consolidated financial statements for the year ended December 31, 2021 included in the 2021 20-F. In determining the information to be disclosed in the notes to the Consolidated Condensed Interim Financial Statements, Atlantica, in accordance with IAS 34, has taken into account its materiality in relation to the Consolidated Condensed Interim Financial Statements. The Consolidated Condensed Interim Financial Statements are presented in U.S. dollars, which is the parent company’s functional and presentation currency. Amounts included in these Consolidated Condensed Interim Financial Statements are all expressed in thousands of U.S. dollars, unless otherwise indicated. These Consolidated Condensed Interim Financial Statements were approved by the Board of Directors of the Company on November 8, 2022. Application of new accounting standards a) Standards, interpretations and amendments effective from January 1, 2022 under IFRS-IASB, applied by the Company in the preparation of these Consolidated Condensed Interim Financial Statements: The applications of these amendments have not had any impact on these Consolidated Condensed Interim Financial Statements. b) Standards, interpretations and amendments published by the IASB that will be effective for periods beginning on or after January 1, 2023: The Company does not anticipate any significant impact on the Consolidated Condensed Interim Financial Statements derived from the application of the new standards and amendments that will be effective for annual periods beginning on or after January 1, 2023, although it is currently still in the process of evaluating such application. The Company has not early adopted any standard, interpretation or amendment that has been issued but is not yet effective. Use of estimates Some of the accounting policies applied require the application of significant judgment by management to select the appropriate assumptions to determine these estimates. These assumptions and estimates are based on the Company´s historical experience, advice from experienced consultants, forecasts and other circumstances and expectations as of the close of the financial period. The assessment is considered in relation to the global economic situation of the industries and regions where the Company operates, taking into account future development of its businesses. By their nature, these judgments are subject to an inherent degree of uncertainty; therefore, actual results could materially differ from the estimates and assumptions used. In such cases, the carrying values of assets and liabilities are adjusted. The most critical accounting policies, which require significant management estimates and judgment are as follows: ● Assessment of contracted concessional agreements. ● Impairment of contracted concessional assets. ● Assessment of control. ● Derivative financial instruments and fair value estimates. ● Income taxes and recoverable amount of deferred tax assets. As of the date of preparation of these Consolidated Condensed Interim Financial Statements, no relevant changes in estimates made are anticipated and, therefore, no significant changes in the value of assets and liabilities recognized at September 30, 2022, are expected. Although these estimates and assumptions are being made using all available facts and circumstances, it is possible that future events may require management to amend such estimates and assumptions in future periods. Changes in accounting estimates are recognized prospectively, in accordance with IAS 8, in the consolidated income statement of the period in which the change occurs.

Financial risk management

Financial risk management	9 Months Ended
	Sep. 30, 2022
Financial risk management [Abstract]
Financial risk management	Note 3. - Financial risk management Atlantica’s activities are exposed to various financial risks: market risk (including currency risk and interest rate risk), credit risk and liquidity risk. Risk is managed by the Company’s Risk, Finance and Compliance Departments, which are responsible for identifying and evaluating financial risks, quantifying them by project, region and company, in accordance with mandatory internal management rules. Written internal policies exist for global risk management, as well as for specific areas of risk. In addition, there are official written management regulations regarding key controls and control procedures for each company and the implementation of these controls is monitored through internal audit procedures. These Consolidated Condensed Interim Financial Statements do not include all financial risk management information and disclosures required for annual financial statements and should be read together with the information included in Note 3 to Atlantica’s annual consolidated financial statements as of December 31, 2021 included in the 2021 20-F.

Financial information by segmen

Financial information by segment	9 Months Ended
	Sep. 30, 2022
Financial information by segment [Abstract]
Financial information by segment	Note 4. - Financial information by segment Atlantica’s segment structure reflects how management currently makes financial decisions and allocates resources. Its operating and reportable segments are based on the following geographies where the contracted concessional assets are located: North America, South America and EMEA. In addition, based on the type of business, as of September 30, 2022, the Company had the following business sectors: Renewable energy, Efficient natural gas and heat, Transmission lines and Water. Atlantica’s Chief Operating Decision Maker (CODM), which is the CEO, assesses the performance and assignment of resources according to the identified operating segments. The CODM considers the revenue as a measure of the business activity and the Adjusted EBITDA as a measure of the performance of each segment. Adjusted EBITDA is calculated as profit/(loss) for the period attributable to the parent company, after adding back loss/(profit) attributable to non-controlling interests, income tax expense, financial expense (net), depreciation, amortization and impairment charges of entities included in the these Consolidated Condensed Interim Financial Statements and depreciation and amortization, financial expense and income tax expense of unconsolidated affiliates (pro rata of Atlantica’s equity ownership). Until September 30, 2021, adjusted EBITDA excluded share of profit/(loss) of associates carried under the equity method and did not include depreciation and amortization, financial expense and income tax expense of unconsolidated affiliates (pro-rata of Atlantica’s equity ownership). Prior periods have been presented accordingly. In order to assess performance of the business, the CODM receives reports of each reportable segment using revenue and Adjusted EBITDA. Net interest expense evolution is assessed on a consolidated basis. Financial expense and amortization are not taken into consideration by the CODM for the allocation of resources. In the nine-month periods ended September 30, 2022 and 2021, Atlantica had two customers with revenues representing more than 10% of total revenue, both in the renewable energy business sector. a) The following tables show Revenue and Adjusted EBITDA by operating segments and business sectors for the nine-month periods ended , and : Revenue Adjusted EBITDA For the nine-month period ended September 30, For the nine-month period ended September 30, ($ in thousands) Geography 2022 2021 2022 2021 North America 323,693 308,661 258,161 243,361 South America 122,549 117,129 95,080 90,626 EMEA 412,163 514,628 277,400 300,094 Total 858,405 940,418 630,641 634,081 Revenue Adjusted EBITDA For the nine-month period ended September 30, For the nine-month period ended September 30, ($ in thousands) Business sector 2022 2021 2022 2021 Renewable energy 652,757 725,756 469,851 464,861 Efficient natural gas & heat 81,944 93,524 66,808 76,387 Transmission lines 83,278 80,428 66,226 64,243 Water 40,424 40,710 27,756 28,590 Total 858,405 940,418 630,641 634,081 The reconciliation of segment Adjusted EBITDA with the loss attributable to the Company is as follows: For the nine-month period ended September 30, ($ in thousands) 2022 2021 Loss attributable to the Company (9,473 ) (18,166 ) Profit attributable to non-controlling interests 11,278 11,720 Income tax 12,975 42,390 Financial expense, net 224,893 251,422 Depreciation, amortization, and impairment charges 374,059 334,916 Depreciation and amortization, financial expense and income tax expense of unconsolidated affiliates (pro rata of Atlantica’s equity ownership) 16,909 11,799 Total segment Adjusted EBITDA 630,641 634,081 b) The assets and liabilities by operating segments (and business sector) as of September 30, 2022 and December 31, 2021 are as follows: Assets and liabilities by geography as of September 30, 2022: North America South America EMEA Balance as of September 30, 2022 ($ in thousands) Assets allocated Contracted concessional assets 3,191,373 1,274,981 2,872,095 7,338,449 Investments carried under the equity method 222,624 - 45,528 268,151 Current financial investments 117,327 29,244 43,498 190,069 Cash and cash equivalents (project companies) 211,483 99,880 364,179 675,542 Subtotal allocated 3,742,807 1,404,105 3,325,300 8,472,211 Unallocated assets Other non-current assets 305,507 Other current assets (including cash and cash equivalents at holding company level) 368,614 Subtotal unallocated 674,121 Total assets 9,146,332 North America South America EMEA Balance as of September 30, 2022 ($ in thousands) Liabilities allocated Long-term and short-term project debt 1,771,257 857,401 1,993,282 4,621,940 Grants and other liabilities 1,019,619 25,115 197,325 1,242,059 Subtotal allocated 2,790,876 882,516 2,190,607 5,863,999 Unallocated liabilities Long-term and short-term corporate debt 955,540 Other non-current liabilities 344,293 Other current liabilities 177,132 Subtotal unallocated 1,476,965 Total liabilities 7,340,964 Equity unallocated 1,805,368 Total liabilities and equity unallocated 3,282,333 Total liabilities and equity 9,146,332 Assets and liabilities by geography as of December 31, 2021: North America South America EMEA Balance as of December 31, 2021 ($ in thousands) Assets allocated Contracted concessional assets 3,355,669 1,231,276 3,434,623 8,021,568 Investments carried under the equity method 253,221 - 41,360 294,581 Current financial investments 135,224 28,155 44,000 207,379 Cash and cash equivalents (project companies) 171,744 74,149 287,655 533,548 Subtotal allocated 3,915,858 1,333,580 3,807,638 9,057,076 Unallocated assets Other non-current assets 268,876 Other current assets (including cash and cash equivalents at holding company level) 425,978 Subtotal unallocated 694,854 Total assets 9,751,930 North America South America EMEA Balance as of December 31, 2021 ($ in thousands) Liabilities allocated Long-term and short-term project debt 1,792,739 887,497 2,355,957 5,036,193 Grants and other liabilities 1,051,679 14,445 197,620 1,263,744 Subtotal allocated 2,844,418 901,942 2,553,577 6,299,937 Unallocated liabilities Long-term and short-term corporate debt 1,023,071 Other non-current liabilities 532,312 Other current liabilities 148,005 Subtotal unallocated 1,703,388 Total liabilities 8,003,325 Equity unallocated 1,748,605 Total liabilities and equity unallocated 3,451,993 Total liabilities and equity 9,751,930 Assets and liabilities by business sector as of September 30, 2022: Renewable energy Efficient natural gas & heat Transmission lines Water Balance as of September 30, 2022 ($ in thousands) Assets allocated Contracted concessional assets 5,893,598 476,590 806,781 161,480 7,338,449 Investments carried under the equity method 211,156 13,841 - 43,154 268,151 Current financial investments 4,091 115,893 28,999 41,086 190,069 Cash and cash equivalents (project companies) 514,378 67,744 66,008 27,412 675,542 Subtotal allocated 6,623,223 674,068 901,788 273,132 8,472,211 Unallocated assets Other non-current assets 305,507 Other current assets (including cash and cash equivalents at holding company level) 368,614 Subtotal unallocated 674,121 Total assets 9,146,332 Renewable energy Efficient natural gas & heat Transmission lines Water Balance as of September 30, 2022 ($ in thousands) Liabilities allocated Long-term and short-term project debt 3,483,395 452,360 598,626 87,559 4,621,940 Grants and other liabilities 1,201,593 31,998 6,118 2,350 1,242,059 Subtotal allocated 4,684,988 484,358 604,744 89,909 5,863,999 Unallocated liabilities Long-term and short-term corporate debt 955,540 Other non-current liabilities 344,293 Other current liabilities 177,132 Subtotal unallocated 1,476,965 Total liabilities 7,340,964 Equity unallocated 1,805,368 Total liabilities and equity unallocated 3,282,333 Total liabilities and equity 9,146,332 Assets and liabilities by business sector as of December 31, 2021: Renewable energy Efficient natural & heat Transmission lines Water Balance as of December 31, 2021 ($ in thousands) Assets allocated Contracted concessional assets 6,533,408 517,247 805,987 164,926 8,021,568 Investments carried under the equity method 240,302 15,358 - 38,921 294,581 Current financial investments 10,761 128,461 27,813 40,344 207,379 Cash and cash equivalents (project companies) 442,213 25,392 44,574 21,369 533,548 Subtotal allocated 7,226,684 686,458 878,374 265,560 9,057,076 Unallocated assets Other non-current assets 268,876 Other current assets (including cash and cash equivalents at holding company level) 425,978 Subtotal unallocated 694,854 Total assets 9,751,930 Renewable energy Efficient natural & heat Transmission lines Water Balance as of December 31, 2021 ($ in thousands) Liabilities allocated Long-term and short-term project debt 3,857,313 478,724 602,278 97,878 5,036,193 Grants and other liabilities 1,244,346 11,212 5,795 2,391 1,263,744 Subtotal allocated 5,101,659 489,936 608,073 100,269 6,299,937 Unallocated liabilities Long-term and short-term corporate debt 1,023,071 Other non-current liabilities 532,312 Other current liabilities 148,005 Subtotal unallocated 1,703,388 Total liabilities 8,003,325 Equity unallocated 1,748,605 Total liabilities and equity unallocated 3,451,993 Total liabilities and equity 9,751,930 c) The amount of depreciation, amortization and impairment charges recognized for the nine-month periods ended September 30, 2022 and 2021 are as follows: For the nine-month period ended September 30, Depreciation, amortization and impairment by geography 2022 2021 ($ in thousands) North America (167,497 ) (119,196 ) South America (46,467 ) (43,388 ) EMEA (160,095 ) (172,332 ) Total (374,059 ) (334,916 ) For the nine-month period ended September 30, Depreciation, amortization and impairment by business sectors 2022 2021 ($ in thousands) Renewable energy (322,183 ) (334,513 ) Efficient natural gas & heat (23,884 ) 22,956 Transmission lines (26,321 ) (24,194 ) Water (1,671 ) 836 Total (374,059 ) (334,916 )

Business combinations

Business combinations	9 Months Ended
	Sep. 30, 2022
Business combinations [Abstract]
Business combinations	Note 5. – Business combinations For the nine-month period ended September 30, 2022 On January 17, 2022, the Company closed the acquisition of Chile TL4, a 63-mile transmission line and 2 substations in Chile for a total equity investment of $39 million. Atlantica has control over Chile TL4 under IFRS 10, Consolidated Financial Statements. The acquisition of Chile TL4 has been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations. Chile TL4 is included within the Transmission Lines sector and the South America geography. On April 4, 2022, the Company closed the acquisition of Italy PV 4, a 3.6 MW solar portfolio in Italy for a total equity investment of $3.7 million. Atlantica has control over Italy PV 4 under IFRS 10, Consolidated Financial Statements. The acquisition of Italy PV 4 has been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations. Italy PV4 is included within the Renewable energy sector and the EMEA geography. On September the Company closed the acquisition of Chile PV a 73 MW solar PV plant through its renewable energy platform in Chile for a total equity investment of . Atlantica has control over Chile PV under IFRS Consolidated Financial Statements. The acquisition of Chile PV has been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS Business Combinations, showing of non-controlling interests. Chile PV is included within the Renewable energy sector and the South America geography. The fair value of assets and liabilities consolidated at the effective acquisition date is shown in the following table: Business combinations for the nine-month period ended September 30, 2022 Contracted concessional assets 74,969 Cash & cash equivalents 1,057 Other current assets 8,282 Non-current Project debt (1,422 ) Other current and non-current liabilities (18,919 ) Non-controlling interests (14,300 ) Total net assets acquired at fair value 49,667 Asset acquisition – purchase price paid (49,667 ) Net result of business combinations - The purchase price equals the fair value of the net assets acquired. The allocation of the purchase price is provisional as of September 30, 2022 and amounts indicated above may be adjusted during the measurement period to reflect new information obtained about facts and circumstances that existed at the acquisition date that, if known, would have affected the amounts recognized as of September 30, 2022. The measurement period will not exceed one year from the acquisition date. The amount of revenue contributed by the acquisitions performed during the nine-month period ended September 30, 2022 to the Consolidated Condensed Interim Financial Statements of the Company as of September 30, 2022 is $4.2 million, and the amount of loss after tax is $0.3 million. Had the acquisitions been consolidated from January 1, 2022, the consolidated statement of comprehensive income would have included additional revenue of $4.8 million and profit after tax of $2.1 million. For the year ended December 31, 2021 On January 6, 2021, the Company completed its second investment through its Chilean renewable energy platform in a 40 MW solar PV plant, Chile PV 2, located in Chile, for approximately $5 million. Atlantica has control over Chile PV 2 under IFRS 10, Consolidated Financial Statements. The acquisition of Chile PV 2 had been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations, showing 65% of non-controlling interests. Chile PV 2 is included within the Renewable energy sector and the South America geography. O n January 8, 2021, the Company completed the purchase of an additional 42.5% stake in Rioglass, a supplier of spare parts and services to the solar industry On April 7, 2021, the Company closed the acquisition of Coso, a 135 MW renewable asset in California. The purchase price paid was $130 million. Atlantica has control over Coso under IFRS 10, Consolidated Financial Statements and its acquisition had been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations. Coso is included within the Renewable energy sector and the North America geography. On May 14, 2021, the Company closed the acquisition of Calgary District Heating, a district heating asset of approximately 55 MWt in Canada. The purchase price paid was approximately $22.9 million. The acquisition had been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations. Calgary District Heating is included within the Efficient natural gas and heat sector and the North America geography. On August 6, 2021, the Company closed the acquisition of Italy PV 1 and Italy PV 2 On November 25, 2021, the Company closed the acquisition of La Sierpe, a 20 MW solar PV plant in Colombia for a total equity investment of approximately $23.5 million. The acquisition had been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations. La Sierpe is included within the Renewable energy sector and the South America geography. On December 14, 2021, the Company closed the acquisition of Italy PV 3, a 2.5 MW solar asset in Italy for a total equity investment of approximately $4 million. The acquisition had been accounted for in these Consolidated Condensed Interim Financial Statements in accordance with IFRS 3, Business Combinations. Italy PV 3 is included within the Renewable Energy sector and the EMEA geography. The fair value of assets and liabilities consolidated at the effective acquisition date is shown in the following table: Business combinations for the year ended December 31 2021 Coso Other Total Contracted concessional assets 383,153 159,575 542,728 Deferred tax asset - 4,410 4,410 O ther non-current assets 11,024 1,943 12,967 Cash & cash equivalents 6,363 14,649 21,012 Other current assets 14,378 46,632 61,010 Non-current Project debt (248,544 ) (39,808 ) (288,352 ) Current Project debt (13,415 ) (25,366 ) (38,781 ) Deferred tax liabilities - (4,910 ) (4,910 ) Other current and non-current liabilities (22,959 ) (64,922 ) (87,881 ) Non-controlling interests - (8,287 ) (8,287 ) Total net assets acquired at fair value 130,000 83,916 213,916 Asset acquisition – purchase price paid (130,000 ) (80,868 ) (210,868 ) Fair value of previously held 15 - (3,048 ) (3,048 ) Net result of business combinations - - - The purchase price equaled the fair value of the net assets acquired. The amount of revenue contributed by the acquisitions performed during 2021 to the Consolidated Financial Statements of the Company for the year 2021 was $ 163.5 0.8 17.7 3.3 The provisional period for the purchase price allocation of Italy PV 1, Italy PV 2, Coso, Calgary, Chile PV 2 and Rioglass closed during the nine-month period ended September 30, 2022 and did not result in significant adjustments to the initial amounts recognized.

Contracted concessional assets

Contracted concessional assets	9 Months Ended
	Sep. 30, 2022
Contracted concessional assets [Abstract]
Contracted concessional assets	Note 6. - Contracted concessional assets Contracted concessional assets correspond to the assets of the Company recorded as intangible or financial assets in accordance with IFRIC 12, property plant and equipment in accordance with IAS 16, intangible assets in accordance with IAS 38 and financial asset in accordance with IFRS 16. The detail of contracted concessional assets included in the heading ‘Contracted concessional assets’ as of September 30, 2022 and December 31, 2021 is as follows: Financial assets under IFRIC 12 Financial assets under IFRS 16 Intangible assets under IFRIC 12 Intangible assets under IFRS 16 (Lessee) Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 Balance as of September 30, 2022 ($ in thousands) Contracted concessional assets cost 829,083 2,808 8,622,516 85,932 952,393 10,492,732 Amortization and impairment (89,999 ) - (2,883,265 ) (16,061 ) (164,958 ) (3,154,283 ) Total 739,084 2,808 5,739,251 69,871 787,435 7,338,449 Financial assets under IFRIC 12 Financial assets under IFRS 16 Intangible assets under IFRIC 12 Intangible assets under IFRS 16 (Lessee) Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 Balance as of December 31, 2021 ($ in thousands) Contracted concessional assets cost 874,525 2,843 9,202,539 82,818 856,410 11,019,135 Amortization and impairment (62,889 ) - (2,769,345 ) (14,105 ) (151,228 ) (2,997,567 ) Total 811,636 2,843 6,433,194 68,713 705,182 8,021,568 The decrease in the contracted concessional assets cost is primarily due to the lower value of the Euro denominated assets since the exchange rate of the Euro decreased against the U.S. dollar since December 31, 2021. Considering the continued delays in the works and replacements that the Company is carrying out in the storage system in Solana and their impact on production in 2022, as well as an increase in the discount rate, the Company identified an impairment triggering event, in accordance with IAS 36, Impairment of assets. As a result, an impairment test has been performed which resulted in the recording of an impairment loss of $41 million as of September 30, 2022 ($43 million as of December 31, 2021). The impairment has been recorded within the line “Depreciation, amortization and impairment charges” of the consolidated condensed interim income statement, decreasing the amount of “Contracted concessional assets” pertaining to the Renewable energy sector and the North America geography. The recoverable amount considered is the value in use and amounts to $881 million for Solana, as of September 30, 2022 ($943 million as of December 31, 2021). A specific discount rate has been used in each year considering changes in the debt/equity leverage ratio over the useful life of this project, resulting in the use of a range of discount rates between 4.6% and 6.3%. An adverse change in the key assumptions which are individually used for the valuation could lead to future impairment recognition; specifically, a 5% decrease in generation over the entire remaining useful life (PPA) of the project would generate an additional impairment of approximately $59 million. An increase of 50 basis points in the discount rate would lead to an additional impairment of approximately $33 million. In addition, changes in the provision for expected credit lo

Investments carried under the e

Investments carried under the equity method	9 Months Ended
	Sep. 30, 2022
Investments carried under the equity method [Abstract]
Investments carried under the equity method	Note 7. - Investments carried under the equity method The table below shows the breakdown of the investments held in associates as of September 30, 2022 and December 31, 2021: Balance as of September 30, 2022 Balance as of December 31, 2021 ($ in thousands) 2 007 Vento II, LLC 185,418 195,952 Windlectric Inc 23,365 41,911 Myah Bahr Honaine, S.P.A. 43,154 38,922 Pemcorp SAPI de CV 13,841 15,358 Pectonex, R.F. Proprietary Limited 1,430 1,495 Evacuación Valdecaballeros, S.L. 918 923 Liberty Infraestructuras S.L. 25 20 Total 268,151 294,581 2007 Vento II, LLC, is the holding company of a 596 MW portfolio of wind assets (“Vento II”) Windlectric Inc., the project entity, is 100% owned by Amherst Island Partnership, itself 30% owned by Atlantica Yield Energy Solutions Canada Inc. (“AYES Canada”) and therefore Myah Bahr Honaine, S.P.A., the project entity, is 51% owned by Geida Tlemcen, S.L., which is accounted for using the equity method in these Consolidate Pemcorp SAPI de CV, Monterrey´s project entity, is 100% owned by Arroyo Netherlands II B.V., which is accounted for under the equity method in these Consolidated Condensed Interim Financial Statements. Arroyo Netherlands II B.V. is 30% owned by Atlantica. The decrease in investments carried under the equity method as of September 30, 2022, is primarily due to the distributions received by The decrease in the investment in Vento II is primarily due to the distributions received from this asset by the Company for $26.0 million, partially offset by the share of profit in Vento II for the nine-month period ended September 30, 2022 for $17.2 million.

Financial investments

Financial investments	9 Months Ended
	Sep. 30, 2022
Financial investments [Abstract]
Financial investments	Note 8. - Financial investments The detail of Non-current and Current financial investments as of September 30, 2022 and December 31, 2021 is as follows: Balance as of September 30, 2022 Balance as of December 31, 2021 ($ in thousands) Fair Value through OCI (Investment in Ten West link) 15,959 14,459 Derivative assets (Note 9) 99,044 10,807 Other receivable accounts at amortized cost 71,872 71,342 Total non-current financial investments 186,875 96,608 Contracted concessional financial assets 184,392 188,912 Derivative assets (Note 9) 5,046 2,153 Other receivable accounts at amortized cost 631 16,314 Total current financial investments 190,069 207,379 Investment in Ten West Link is a 12.5% interest in a 114-mile transmission line in the U.S., currently under development.

Derivative financial instrument

Derivative financial instruments	9 Months Ended
	Sep. 30, 2022
Derivative financial instruments [Abstract]
Derivative financial instruments	Note 9. - Derivative financial instruments The breakdowns of the fair value amount of the derivative financial instruments as of September 30, 2022 and December 31, 2021 are as follows: Balance as of September 30, 2022 Balance as of December 31, 2021 ($ in thousands) Assets Liabilities Assets Liabilities Interest rate cash flow hedge 97,044 40,645 9,550 206,763 Foreign exchange derivatives instruments 7,046 - 3,410 - Notes conversion option (Note 14) - 9,891 - 16,690 Total 104,090 50,536 12,960 223,453 The derivatives are primarily interest rate cash flow hedges. All are classified as non-current assets or non-current liabilities, as they hedge long-term financing agreements. The net amount of the fair value of interest rate derivatives designated as cash flow hedges transferred to the consolidated condensed income statement is a loss of $31.5 million for the -month period ended September (loss of for the -month period ended September . The after-tax results accumulated in equity in connection with derivatives designated as cash flow hedges as of September and December amount to a profit of Additionally, the Company has currency options with leading international financial institutions, which guarantee minimum Euro-U.S. dollar exchange rates. The strategy of the Company is to hedge the exchange rate for the net distributions from its European assets after deducting euro-denominated interest payments and euro-denominated general and administrative expenses. Through currency options, the strategy of the Company is to hedge 100% of its euro-denominated net exposure for the next 12 months and 75% of its euro denominated net exposure for the following 12 months, on a rolling basis. Change in fair value of these foreign exchange derivatives instruments are directly recorded in the consolidated income statement. Finally, the conversion option of the Green Exchangeable Notes issued in July 2020 (Note 14) is recorded as a derivative with a negative fair value (liability) of $9.9 million as of September 30, 2022 ($17 million as of December 31, 2021).

Fair value of financial instrum

Fair value of financial instruments	9 Months Ended
	Sep. 30, 2022
Fair value of financial instruments [Abstract]
Fair value of financial instruments	Note 10. - Fair value of financial instruments Financial instruments measured at fair value are classified based on the nature of the inputs used for the calculation of fair value: ● Level 1: Inputs are quoted prices in active markets for identical assets or liabilities. ● Level 2: Fair value is measured based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices). ● Level 3: Fair value is measured based on unobservable inputs for the asset or liability. As of September 30, 2022, all the financial instruments measured at fair value correspond to derivatives and have been classified as Level 2, except for the investments held in Ten West Link, which has been classified as Level 3.

Related parties

Related parties	9 Months Ended
	Sep. 30, 2022
Related parties [Abstract]
Related parties	Note 11. - Related parties The related parties of the Company are primarily Algonquin Power & Utilities Corp. (“Algonquin”) and its subsidiaries, non-controlling interests (Note 13), entities accounted for under the equity method (Note 7), as well as the Directors and the Senior Management of the Company. Details of balances with related parties as of September 30, 2022 and December 31, 2021 are as follows: Balance as of September 30, Balance as of December 31, ($ in thousands) 2022 2021 Credit receivables (current) 3,695 19,387 Credit receivables (non-current) 17,006 15,768 Total receivables from related parties 20,701 35,155 Credit payables (current) 8,053 9,494 Credit payables (non-current) - 5 Total payables to related parties 8,053 9,499 Current credit receivables as of December 31, 2021 $6.3 million and the short-term portion of the loan to Arroyo Netherland II B.V., the holding company of Pemcorp SAPI de CV, Monterrey´s project entity (Note 7) , of which $8.2 million was collected in the first quarter of 2022. Non-current credit receivables as of September 30, 2022 and December 31, 2021 correspond to the long-term portion of the loan to Arroyo Netherland II B.V. Current credit payables primarily include the dividend to be paid by AYES Canada to Algonquin for $2.3 million as of September 30, 2022 ($6.1 million as of December 31, 2021) and the dividend to be paid by Skikda and Tenes to Algerian Energy Company, SPA and Sacyr Agua S.L for $5.1 million as of September 30, 2022 ( nil The transactions carried out by entities included in these Consolidated Condensed Interim Financial Statements with related parties, for the nine-month periods ended September 30, 2022 and 2021 have been as follows: For the nine-month period ended September 30, 2022 2021 ($ in thousands) Financial income 996 1,547 Financial expenses (143 ) (89 )

Trade and other receivables

Trade and other receivables	9 Months Ended
	Sep. 30, 2022
Trade and other receivables [Abstract]
Trade and other receivables	Note 12. - Trade and other receivables Trade and other receivables as of September 30, 2022 and December 31, 2021, consist of the following: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Trade receivables 158,611 227,343 Tax receivables 39,700 59,350 Prepayments 24,054 9,342 Other accounts receivable 8,351 11,108 Total 230,716 307,143 The decrease in trade receivables is primarily due to payments received from CNMC in the solar assets of the Company in Spain and from Pemex in ACT. The increase in prepayments is primarily due to the timing of insurance payments. As of September 30, 2022, and December 31, 2021, the fair value of trade and other receivables accounts does not differ significantly from its carrying value.

Equity

Equity	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Equity	Note 13. - Equity As of September 30, 2022, the share capital of the Company amounts to $11,605,512 represented by 116,055,126 ordinary shares fully subscribed and disbursed with a nominal value of $0.10 each, all in the same class and series. Each share grants one voting right. Algonquin owns 42.2% of the shares of the Company and is its largest shareholder as of September 30, 2022. Algonquin’s voting rights and rights to appoint directors are limited to 41.5% and the difference between Algonquin´s ownership and 41.5% will vote replicating non-Algonquin’s shareholders’ vote. On December 11, 2020, the Company closed an underwritten public offering of 5,069,200 ordinary shares, including 661,200 ordinary shares sold pursuant to the full exercise of the underwriters’ over-allotment option, at a price of $33 per new share. Gross proceeds were approximately $167 million. Given that the offering was issued through a subsidiary in Jersey, which became wholly owned by the Company at closing, and subsequently liquidated, the premium on issuance was credited to a merger reserve account (Capital reserves), net of issuance costs, for $161 million. Additionally, Algonquin committed to purchase 4,020,860 ordinary shares in a private placement in order to maintain its previous equity ownership of 44.2% in the Company. The private placement closed on January 7, 2021. Gross proceeds were approximately $133 million ($131 million net of issuance costs). During the first quarter of 2021, the Company changed the accounting treatment applied to its existing long-term incentive plans granted to employees from cash-settled to equity-settled in accordance with IFRS 2, Share-based Payment, as a result of incentives being settled in shares. The liability recognized for the rights vested by the employees under such plans at the date of this change, was reclassified to equity within the line “Accumulated deficit” for approximately $9 million. The settlement in shares was approved by the Board of Directors on February 26, 2021, and the Company issued 141,482 new shares to its employees up to December 31, 2021, to settle a portion of these plans. In the -month period ended September 30, On August 3, 2021, the Company established an “at-the-market program” and entered into a distribution agreement with J.P. Morgan Securities LLC, as sales agent, under which the Company may offer and sell from time to time up to $150 million of its ordinary shares. The Company also entered into an agreement with Algonquin pursuant to which the Company has offered Algonquin the right but not the obligation, on a quarterly basis, to purchase a number of ordinary shares to maintain its percentage interest in Atlantica at the average price of the shares sold under the distribution agreement in the previous quarter (the “ATM Plan Letter Agreement”). On February 28, 2022, the Company established a new “at-the-market program” and entered into a distribution agreement with BofA Securities, MUFG and RBC Capital Markets, as its sales agents, Upon entry into the distribution agreement, the Company terminated its prior “at-the-market program” established on August 3, 2021 and the related distribution agreement dated such date, entered into with J.P. Morgan Securities LLC. Atlantica´s reserves as of September 30, 2022 are made up of share premium account and capital reserves. The share premium account reduction by $200,000 thousand during the nine-month period ended September 30, 2021, increasing capital reserves by the same amount, was made effective upon the confirmation received from the High Court in the UK, pursuant to the Companies Act 2006 Other reserves primarily include the change in fair value of cash flow hedges and its tax effect. Accumulated currency translation differences primarily include the result of translating the financial statements of subsidiaries prepared in a foreign currency into the presentation currency of the Company, the U.S. dollar. Accumulated deficit primarily includes results attributable to Atlantica. Non-controlling interests fully relate to interests held by JGC in Solacor 1 and Solacor 2, by Idae in Seville PV, by Itochu Corporation in Solaben 2 and Solaben 3, by Algerian Energy Company, SPA and Sacyr Agua S.L. in Skikda, by Algerian Energy Company, SPA in Tenes, by Industrial Development Corporation of South Africa (IDC) and Kaxu Community Trust in Kaxu, by Algonquin Power Co. in AYES Canada, and by partners of the Company in the Chilean renewable energy platform in Chile PV 1 , Chile PV 2 and Chile PV 3 On February 25, 2022, the Board of Directors declared a dividend of $0.44 per share corresponding to the fourth quarter of 2021. The dividend was paid on March 25, 2022 for a total amount of $49.7 million. On May 5, 2022 the Board of Directors declared a dividend of per share corresponding to the quarter of The dividend was paid on June 15, 2022 for a total amount of . On August 2, 2022, the Board of Directors declared a dividend of $0.445 per share corresponding to the second quarter of 2022. The dividend was paid on September 15, 2022 for a total amount of $51.5 million. In addition, the Company declared dividends to non-controlling interests, primarily to Algerian Energy Company, SPA and Algonquin (interests in Amherst through AYES Canada, see Note 7) for $5.3 million and $14.6 million, respectively, in the nine-month period ended September 30, 2022 ($6.7 million and $10.9 million in the nine-month period ended September 30, 2021, respectively). As of September 30, 2022 and December 31, 2021, there was no treasury stock and there have been no transactions with treasury stock during the period then ended.

Corporate debt

Corporate debt	9 Months Ended
	Sep. 30, 2022
Corporate debt [Abstract]
Corporate debt	Note 14. - Corporate debt The breakdown of corporate debt as of September 30, 2022 and December 31, 2021 is as follows: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Non-current 934,795 995,190 Current 20,745 27,881 Total Corporate Debt 955,540 1,023,071 On July 20, 2017, the Company signed a credit facility (the “2017 Credit Facility”) for up to €10 million ($9.8 million), which is available in euros or U.S. dollars. Amounts drawn down accrue interest at a rate per year equal to EURIBOR plus 2% or LIBOR plus 2%, depending on the currency, with a floor of 0% on the LIBOR and EURIBOR. As of September 30, has been drawn down ( as of December . As of December the credit facility maturity was July 1, 2023 On July the maturity has been extended to July 1, 2024 On May 10, 2018, the Company entered into the Revolving Credit Facility for $215 million with a syndicate of banks. Amounts drawn down accrue interest at a rate per year equal to (A) for Eurodollar rate loans, Term SOFR, plus a Term SOFR Adjustment equal to 0.10% per annum, plus a percentage determined by reference to the leverage ratio of the Company, ranging between 1.60% and 2.25% and (B) for base rate loans, the highest of (i) the rate per annum equal to the weighted average of the rates on overnight U.S. Federal funds transactions with members of the U.S. Federal Reserve System arranged by U.S. Federal funds brokers on such day plus ½ On April 30, 2019, the Company entered into the Note Issuance Facility 2019, a senior unsecured note facility with a group of funds managed by Westbourne Capital as purchasers of the notes issued thereunder for a total amount of €268 million ($263 million), with maturity date on April 30, 2025. Interest accrued at a rate per annum equaled to the sum of 3-month EURIBOR plus 4.50%. The interest rate on the Note Issuance Facility 2019 was fully hedged by an interest rate swap resulting in the Company paying a net fixed interest rate of 4.24%. The Note Issuance Facility 2019 was fully repaid on June 4, 2021, and subsequently delisted from the Official List of The International Stock Exchange. On October 8, 2019, the Company filed a euro commercial paper program (the “Commercial Paper”) with the Alternative Fixed Income Market (MARF) in Spain. The program had an original maturity of twelve months and has been extended twice, for annual periods. The program allows Atlantica to issue short term notes over the next twelve months for up to €50 million ($49 million), with such notes having a tenor of up to two years. As of September 30, 2022, the Company had €13.4 million ($13.1 million) issued and outstanding under the program at an average cost of 0.71% (€21.5 million, or $22.4 million, as of December 31, 2021). On April 1, 2020, the Company closed the secured 2020 Green Private Placement for €290 million ($284 million). The private placement accrues interest at an annual 1.96% interest rate, payable quarterly and has a June 2026 maturity. On July 8, 2020, the Company entered into the Note Issuance Facility 2020, a senior unsecured financing with a group of funds managed by Westbourne Capital as purchasers of the notes issued thereunder for a total amount of $137 million which is denominated in euros (€140 million). The Note Issuance Facility 2020 was issued on August 12, 2020, accrues annual interest of 5.25%, payable quarterly and has a maturity of seven years from the closing date. On July 17, 2020, the Company issued the Green Exchangeable Notes for $100 million in aggregate principal amount of 4.00% convertible bonds due in 2025. On July 29, 2020, the Company closed an additional $15 million aggregate principal amount of the Green Exchangeable Notes. The notes mature on July 15, 2025 and bear interest at a rate of 4.00% per annum. The initial exchange rate of the notes is 29.1070 ordinary shares per $1,000 principal amount of notes, which is equivalent to an initial exchange price of $34.36 per ordinary share. Noteholders may exchange their notes at their option at any time prior to the close of business on the scheduled trading day immediately preceding April 15, 2025, only during certain periods and upon satisfaction of certain conditions. On or after April 15, 2025, noteholders may exchange their notes at any time. Upon exchange, the notes may be settled, at the election of the Company, into Atlantica ordinary shares, cash or a combination thereof. The exchange rate is subject to adjustment upon the occurrence of certain events. As per IAS 32, “Financial Instruments: Presentation”, the conversion option of the Green Exchangeable Notes is an embedded derivative classified within the line “Derivative liabilities” of these Consolidated Condensed Interim Financial Statements (Note 9). It was initially valued at the transaction date for $10 million, and prospective changes to its fair value are accounted for directly through the profit and loss statement. The principal element of the Green Exchangeable Notes, classified within the line “Corporate debt” of these Consolidated Condensed Interim Financial Statements, is initially valued as the difference between the consideration received from the holders of the instrument and the value of the embedded derivative, and thereafter, at amortized cost using the effective interest method as per IFRS 9, Financial Instruments. On December 4, 2020, the Company entered into a loan with a bank for €5 million ($4.9 million). This loan accrues interest at a rate per year equal to 2.50%. The maturity date is December 4, 2025. On May 18, 2021, the Company issued the Green Senior Notes due in 2028 in an aggregate principal amount of $400 million. The notes mature on May 15, 2028 and bear interest at a rate of 4.125% per annum payable on June 15 and December 15 of each year, commencing December 15, 2021. On January 31, 2022, the Company entered into a loan with a bank for €5 million ($4.9 million). This loan accrues interest at a rate per year equal to 1.90%. The maturity date is January 31, 2026. The repayment schedule for the corporate debt as of September 30, 2022 is as follows: Remainder of 2022 Between January and September 2023 Between October and December 2023 2024 2025 2026 Subsequent years Total ($ in thousands) 2017 Credit Facility 6 - - 8,822 - - - 8,828 Commercial Paper 10,967 2,145 - - - - - 13,112 2020 Green Private Placement 356 - - - - 282,052 - 282,408 2020 Note Issuance Facility - - - - - - 134,778 134,778 Green Exchangeable Notes 957 - - - 106,330 - - 107,287 Green Senior Notes 5,087 - - - - - 394,833 399,920 Other bank loans 25 1,202 1,634 2,859 2,859 628 - 9,207 Total 17,398 3,347 1,634 11,681 109,189 282,680 529,611 955,540 The repayment schedule for the corporate debt as of December 31, 2021 was as follows 2022 2023 2024 2025 2026 Subsequent years Total 2017 Credit Facility 5 8,199 - - - - 8,204 Commercial Paper 24,422 - - - - - 24,422 2020 Green Private Placement 359 - - - 327,081 - 327,440 2020 Note Issuance Facility - - - - - 155,814 155,814 Green Exchangeable Notes 2,121 - - 104,289 - - 106,410 Green Senior Note 963 - - - - 394,155 395,118 Other bank loans 11 1,895 1,895 1,862 - - 5,663 Total 27,881 10,094 1,895 106,151 327,081 549,969 1,023,071

Project debt

Project debt	9 Months Ended
	Sep. 30, 2022
Project debt [Abstract]
Project debt	Note 15. - Project debt This note shows the project debt linked to the contracted concessional assets included in Note 6 of these Consolidated Condensed Interim Financial Statements. Project debt is generally used to finance contracted assets, exclusively using as guarantee the assets and cash flows of the company or group of companies carrying out the activities financed. In addition, the cash of the Company´s projects include funds held to satisfy the customary requirements of certain non-recourse debt agreements and other restricted cash for an amount of $231 million as of September 30, 2022 ($254 million as of December 31, 2021). The breakdown of project debt for both non-current and current liabilities as of September 30, 2022 and December 31, 2021 is as follows: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Non-current 4,249,902 4,387,674 Current 372,038 648,519 Total Project debt 4,621,940 5,036,193 The decrease in total project debt is primarily due to: - the repayment of project debt for the period in accordance with the financing arrangements; and - the lower value of debt denominated in Euros given the depreciation of the Euro against the U.S. dollar since December 31, As of December 31, 2021, Kaxu total debt was presented as current in the Consolidated Condensed Interim Financial Statements of the Company, for an amount of $314 million, in accordance with International Accounting Standards 1 (“IAS 1”), “Presentation of Financial Statements”, as a result of the existence of a theoretical event of default under the Kaxu project finance agreement. the Company has again an unconditional right to defer the settlement of the debt for at least months, and therefore the debt previously presented as current in these Consolidated Condensed Interim Financial Statements has been reclassified as non-current in accordance with the financing agreements (Note . The repayment schedule for project debt in accordance with the financing arrangements as of September 30, 2022, is as follows and is consistent with the projected cash flows of the related projects: Remainder of 2022 Interest payment Nominal repayment Between January and September 2023 Between October December 2023 2024 2025 2026 Subsequent years Total ($ in thousands) 52,074 170,195 149,769 174,980 341,020 453,890 381,112 2,898,900 4,621,940 The repayment schedule for project debt in accordance with the financing arrangements and assuming there would be no acceleration of the Kaxu debt repayment as of December 31, 2021, was as follows and was consistent with the projected cash flows of the related projects: 2022 2023 2024 2025 2026 Subsequent years Total Interest payment Nominal repayment 18,017 317,388 355,956 369,528 498,712 411,514 3,065,078 5,036,193

Grants and other liabilities

Grants and other liabilities	9 Months Ended
	Sep. 30, 2022
Grants and other liabilities [Abstract]
Grants and other liabilities	Note 16. - Grants and other liabilities Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Grants 926,085 970,557 Other Liabilities 315,974 293,187 Grants and other non-current liabilities 1,242,059 1,263,744 As of September 30, 2022, the amount recorded in Grants primarily corresponds to the ITC Grant awarded by the U.S. Department of the Treasury to Solana and Mojave for a total amount of $618 million ($642 million as of December 31, 2021). The amount recorded in Grants as a liability is progressively recorded as other income over the useful life of the asset. The remaining balance of the “Grants” account corresponds to loans with interest rates below market rates for Solana and Mojave for a total amount of $306 million as of September 30, 2022 ($326 million as of December 31, 2021). Loans with the Federal Financing Bank guaranteed by the Department of Energy for these projects bear interest at a rate below market rates for these types of projects and terms. The difference between proceeds received from these loans and its fair value, is initially recorded as “Grants” in the consolidated statement of financial position, and subsequently recorded progressively in “Other operating income”. Total amount of income for these two types of grants for Solana and Mojave is $43.9 million and $44.0 million for the nine-month periods ended September 30, 2022 and 2021, respectively (Note 20). Other liabilities mainly include: - $59 million of lease liabilities ($59 million as of December 31, 2021); - $129 million of dismantling provision ($125 million as of December 31, 2021); and - $86 million of provision related to the current high market prices in Spain at which the solar assets in Spain invoiced electricity up to September 30, 2022 ($75 million as of December 31, 2021), as a result of a negative adjustment to the regulated revenues expected to be recorded progressively over the remaining regulatory life of the solar assets of the Company, as a compensation.

Trade payables and other curren

Trade payables and other current liabilities	9 Months Ended
	Sep. 30, 2022
Trade payables and other current liabilities [Abstract]
Trade payables and other current liabilities	Note 17. - Trade payables and other current liabilities Trade payables and other current liabilities as of September 30, 2022 and December 31, 2021 are as follows: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Trade accounts payable 87,054 79,052 Down payments from clients 6,286 542 Other accounts payable 42,354 34,313 Total 135,694 113,907 Trade accounts payable mainly relate to the operation and maintenance of the plants. Nominal values of trade payables and other current liabilities are considered to be approximately equal to fair values and the effect of discounting them is not significant.

Income Tax

Income Tax	9 Months Ended
	Sep. 30, 2022
Income Tax [Abstract]
Income Tax	Note 18. - Income Tax The effective tax rate for the periods presented has been established based on management’s best estimates, taking into account the tax treatment of permanent differences and tax credits. For the nine-month period ended September 30, 2022, income tax amounted to a $12,975 thousand expense with respect to a profit before income tax of $14,780 thousand. In the nine-month period ended September 30, 2021, income tax amounted to a $42,390 thousand expense with respect to a profit before income tax of $35,944 thousand. The effective tax rate differs from the nominal tax rate mainly due to unrecognized tax loss carryforwards and permanent tax differences in some jurisdictions.

Financial expense, net

Financial expense, net	9 Months Ended
	Sep. 30, 2022
Financial expense, net [Abstract]
Financial expense, net	Note 19. - Financial expense, net Financial income and expense The following table sets forth financial income and expenses for the nine-month periods ended September 30, 2022 and 2021: For the nine-month period ended September 30, 2022 2021 Financial income ($ in thousands) Interest income from loans and credits 1,143 1,549 Interest rate gains on derivatives: cash flow hedges 2,224 299 Total 3,367 1,848 For the nine-month period ended September 30, 2022 2021 Financial expense ($ in thousands) Interest on loans and notes (211,484 ) (232,065 ) Interest rates losses derivatives: cash flow hedges (32,821 ) (44,935 ) Total (244,305 ) (277,000 ) Interest on loans and notes primarily include interest on corporate and project debt. Losses from interest rate derivatives designated as cash flow hedges primarily correspond to transfers from equity to financial expense when the hedged item impacts the consolidated income statement. Net exchange differences Net exchange differences primarily correspond to realized and unrealized exchange gains and losses on transactions in foreign currencies as part of the normal course of business of the Company and to the increase in value of the currency options of the Company (Note . Other financial income and expenses The following table sets out Other financial income and expenses for the nine-month periods ended September 30, 2022, and 2021: For the nine September 30 Other financial income / (expenses) 2022 2021 ($ in thousands) Other financial income 18,790 35,355 Other financial losses (16,582 ) (13,671 ) Total 2,208 21,684 Other financial income in the -month period ended September include of income for non-monetary change to the fair value of derivatives of Kaxu for which hedge accounting is not applied ( for the -month period ended September , and income ( income for the -month period ended September further to the change in the fair value of the conversion option of the Green Exchangeable Notes since December (Note . Residual items primarily relate to interest on deposits and loans, including non-monetary changes to the amortized cost of such Other financial losses primarily include guarantees and letters of credit, other bank fees and other minor financial expenses.

Other operating income and expe

Other operating income and expenses	9 Months Ended
	Sep. 30, 2022
Other operating income and expenses [Abstract]
Other operating income and expenses	Note 20.- Other operating income and expenses The table below shows the detail of Other operating income and expenses for the nine-month periods ended September 30, 2022, and 2021: Other operating income For the nine-month period ended September 30, 2022 2021 ($ in thousands) Grants (Note 16) 44,364 44,449 Insurance proceeds and other 10,496 13,148 Total 54,860 57,597 Other operating expenses For the nine September 30 2022 2021 ($ in thousands) Raw materials and consumables used (13,710 ) (64,756 ) Leases and fees (8,571 ) (6,451 ) Operation and maintenance (106,118 ) (117,750 ) Independent professional services (28,096 ) (27,297 ) Supplies (45,678 ) (25,270 ) Insurance (34,446 ) (33,943 ) Levies and duties (13,596 ) (25,948 ) Other expenses (11,220 ) (19,458 ) Total (261,435 ) (320,873 ) The decrease in Other operating expenses in 2022 is primarily due to a specific non-recurrent solar project of Rioglass which ended in October 2021, which mainly explains the decrease in Raw materials and consumables used in 2022.

Earnings per share

Earnings per share	9 Months Ended
	Sep. 30, 2022
Earnings per share [Abstract]
Earnings per share	Note 21. - Earnings per share Basic earnings per share have been calculated by dividing the profit/(loss) attributable to equity holders of the Company by the average number of outstanding shares. Diluted earnings per share for the nine-month period ended September 30, 2022 have been calculated considering the potential issuance of 3,347,305 shares (3,347,305 shares for the nine-month period ended September 30, 2021) on the settlement of the Green Exchangeable Notes (Note 14) and the potential issuance of 596,681 shares (510,169 shares for the nine-month period ended September 30, 2021) to Algonquin under the agreement signed on August 3, 2021, according to which Algonquin has the option, on a quarterly basis, to subscribe such number of shares to maintain its percentage in Atlantica in relation to the use of the ATM program (Note 13). Item For the nine-month period ended September 30, 2022 2021 ($ in thousands) Loss attributable to Atlantica (9,473 ) (18,166 ) Average number of ordinary shares outstanding (thousands) - basic 114,236 110,749 Average number of ordinary shares outstanding (thousands) - diluted 118,197 114,156 Earnings per share for the period (U.S. dollar per share) - basic (0.08 ) (0.16 ) Earnings per share for the period (U.S. dollar per share) - diluted (0.08 ) (0.16 )

Subsequent events

Subsequent events	9 Months Ended
	Sep. 30, 2022
Subsequent events [Abstract]
Subsequent events	Note 22. - Subsequent events On October 20, 2022, the Company refinanced the project debt of Solacor 1 & 2. The new financing is a green euro-denominated loan with a syndicate of banks for a total amount of €205 million. The maturity has been extended until 2037. Interest accrue at a rate per annum equal to the sum of 6-month EURIBOR plus a margin of 1.50% between 2022-2027, 1.60% between 2027-2032 and 1.70% between 2032-2037. The Company hedged its EURIBOR exposure, 71% through a swap set at 2.36% for the life of the financing and 19% by maintaining the existing caps with 1% strike and maturity in 2025. On November 8, 2022, the Board of Directors of the Company approved a dividend of $0.445 per share, which is expected to be paid on December 15, 2022.

Basis of preparation (Policies)

Basis of preparation (Policies)	9 Months Ended
	Sep. 30, 2022
Basis of preparation [Abstract]
Basis of preparation	The accompanying Consolidated Condensed Interim Financial Statements represent the consolidated results of the Company and its subsidiaries. The Company’s annual consolidated financial statements as of December 31, 2021, were approved by the Board of Directors on February 25, 2022. These Consolidated Condensed Interim Financial Statements are presented in accordance with International Accounting Standards (“IAS”) 34, “Interim Financial Reporting”. In accordance with IAS 34, interim financial information is prepared solely in order to update the most recent annual consolidated financial statements prepared by the Company, placing emphasis on new activities, occurrences and circumstances that have taken place during the nine-month period ended September 30, 2022, and not duplicating the information previously published in the annual consolidated financial statements for the year ended December 31, 2021. Therefore, the Consolidated Condensed Interim Financial Statements do not include all the information that would be required in a complete set of consolidated financial statements prepared in accordance with the IFRS-IASB (“International Financial Reporting Standards-International Accounting Standards Board”). In view of the above, for an adequate understanding of the information, these Consolidated Condensed Interim Financial Statements must be read together with Atlantica’s consolidated financial statements for the year ended December 31, 2021 included in the 2021 20-F. In determining the information to be disclosed in the notes to the Consolidated Condensed Interim Financial Statements, Atlantica, in accordance with IAS 34, has taken into account its materiality in relation to the Consolidated Condensed Interim Financial Statements. The Consolidated Condensed Interim Financial Statements are presented in U.S. dollars, which is the parent company’s functional and presentation currency. Amounts included in these Consolidated Condensed Interim Financial Statements are all expressed in thousands of U.S. dollars, unless otherwise indicated. These Consolidated Condensed Interim Financial Statements were approved by the Board of Directors of the Company on November 8, 2022.
Application of new accounting standards	Application of new accounting standards a) Standards, interpretations and amendments effective from January 1, 2022 under IFRS-IASB, applied by the Company in the preparation of these Consolidated Condensed Interim Financial Statements: The applications of these amendments have not had any impact on these Consolidated Condensed Interim Financial Statements. b) Standards, interpretations and amendments published by the IASB that will be effective for periods beginning on or after January 1, 2023: The Company does not anticipate any significant impact on the Consolidated Condensed Interim Financial Statements derived from the application of the new standards and amendments that will be effective for annual periods beginning on or after January 1, 2023, although it is currently still in the process of evaluating such application. The Company has not early adopted any standard, interpretation or amendment that has been issued but is not yet effective.
Use of estimates	Use of estimates Some of the accounting policies applied require the application of significant judgment by management to select the appropriate assumptions to determine these estimates. These assumptions and estimates are based on the Company´s historical experience, advice from experienced consultants, forecasts and other circumstances and expectations as of the close of the financial period. The assessment is considered in relation to the global economic situation of the industries and regions where the Company operates, taking into account future development of its businesses. By their nature, these judgments are subject to an inherent degree of uncertainty; therefore, actual results could materially differ from the estimates and assumptions used. In such cases, the carrying values of assets and liabilities are adjusted. The most critical accounting policies, which require significant management estimates and judgment are as follows: ● Assessment of contracted concessional agreements. ● Impairment of contracted concessional assets. ● Assessment of control. ● Derivative financial instruments and fair value estimates. ● Income taxes and recoverable amount of deferred tax assets. As of the date of preparation of these Consolidated Condensed Interim Financial Statements, no relevant changes in estimates made are anticipated and, therefore, no significant changes in the value of assets and liabilities recognized at September 30, 2022, are expected. Although these estimates and assumptions are being made using all available facts and circumstances, it is possible that future events may require management to amend such estimates and assumptions in future periods. Changes in accounting estimates are recognized prospectively, in accordance with IAS 8, in the consolidated income statement of the period in which the change occurs.

Fair value of financial instr_2

Fair value of financial instruments (Policies)	9 Months Ended
	Sep. 30, 2022
Fair value of financial instruments [Abstract]
Fair value of financial instruments	Financial instruments measured at fair value are classified based on the nature of the inputs used for the calculation of fair value: ● Level 1: Inputs are quoted prices in active markets for identical assets or liabilities. ● Level 2: Fair value is measured based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices). ● Level 3: Fair value is measured based on unobservable inputs for the asset or liability. As of September 30, 2022, all the financial instruments measured at fair value correspond to derivatives and have been classified as Level 2, except for the investments held in Ten West Link, which has been classified as Level 3.

Nature of the business (Tables)

Nature of the business (Tables)	9 Months Ended
	Sep. 30, 2022
Nature of the business [Abstract]
Overview of main assets	The following table provides an overview of the main contracted concessional assets the Company owned or had an interest in as of September 30, 2022: Assets Type Ownership Location Currency (9) Capacity (Gross) Counterparty Credit Ratings (10) COD* Contract Years Remaining (16) Solana Renewable (Solar) 100% Arizona (USA) USD 280 MW BBB+/A3/BBB+ 2013 21 Mojave Renewable (Solar) 100% California (USA) USD 280 MW BB-/ -- /BB 2014 17 Coso Renewable (Geothermal) 100% California (USA) USD 135 MW Investment Grade (11) 1987-1989 17 Elkhorn Valley Renewable (Wind) 49% Oregon (USA) USD 101 MW BBB/Baa1/-- 2007 5 Prairie Star Renewable (Wind) 49% Minnesota (USA) USD 101 MW --/A3/A- 2007 5 Twin Groves II Renewable (Wind) 49% Illinois (USA) USD 198 MW BBB/Baa2/-- 2008 3 Lone Star II Renewable (Wind) 49% Texas (USA) USD 196 MW Not rated 2008 - Chile PV 1 Renewable (Solar) 35% (1) Chile USD 55 MW N/A 2016 N/A Chile PV 2 Renewable (Solar) 35% (1) Chile USD 40 MW Not rated 2017 8 Chile PV 3 Renewable (Solar) 35% (1) Chile USD 73 MW Not rated 2014 N/A La Sierpe Renewable (Solar) 100% Colombia COP 20 MW Not rated 2021 13 Palmatir Renewable (Wind) 100% Uruguay USD 50 MW BBB/Baa2/BBB- (12) 2014 12 Cadonal Renewable (Wind) 100% Uruguay USD 50 MW BBB/Baa2/BBB- (12) 2014 12 Melowind Renewable (Wind) 100% Uruguay USD 50 MW BBB/Baa2/BBB- 2015 13 Mini-Hydro Renewable (Hydraulic) 100% Peru USD 4 MW BBB/Baa1/BBB 2012 10 Solaben 2 & 3 Renewable (Solar) 70% (2) Spain Euro 2x50 MW A/Baa1/A- 2012 15/15 Solacor 1 & 2 Renewable (Solar) 87% (3) Spain Euro 2x50 MW A/Baa1/A- 2012 14/14 PS10 & PS20 Renewable (Solar) 100% Spain Euro 31 MW A/Baa1/A- 2007&2009 10/12 Helioenergy 1 & 2 Renewable (Solar) 100% Spain Euro 2x50 MW A/Baa1/A- 2011 14/14 Helios 1 & 2 Renewable (Solar) 100% Spain Euro 2x50 MW A/Baa1/A- 2012 15/15 Solnova 1, 3 & 4 Renewable (Solar) 100% Spain Euro 3x50 MW A/Baa1/A- 2010 13/13/13 Solaben 1 & 6 Renewable (Solar) 100% Spain Euro 2x50 MW A/Baa1/A- 2013 16/16 Seville PV Renewable (Solar) 80% (4) Spain Euro 1 MW A/Baa1/A- 2006 13 Italy PV 1 Renewable (Solar) 100% Italy Euro 1.6 MW BBB/Baa3/BBB 2010 8 Italy PV 2 Renewable (Solar) 100% Italy Euro 2.1 MW BBB/Baa3/BBB 2011 9 Italy PV 3 Renewable (Solar) 100% Italy Euro 2.5 MW BBB/Baa3/BBB 2012 10 Italy PV 4 Renewable (Solar) 100% Italy Euro 3.6 MW BBB/Baa3/BBB 2011 9 Kaxu Renewable (Solar) 51% (5) South Africa Rand 100 MW BB-/Ba2/BB- (13) 2015 12 Calgary Efficient natural gas &heat 100% Canada CAD 55 MWt ~41% A+ or higher (14) 2010 18 ACT Efficient natural gas & heat 100% Mexico USD 300 MW BBB/B1/BB- 2013 11 Monterrey Efficient natural gas &heat 30% Mexico USD 142 MW Not rated 2018 24 ATN (15) Transmission line 100% Peru USD 379 miles BBB/Baa1/BBB 2011 18 ATS Transmission line 100% Peru USD 569 miles BBB/Baa1/BBB 2014 21 ATN 2 Transmission line 100% Peru USD 81 miles Not rated 2015 11 Quadra 1 & 2 Transmission line 100% Chile USD 49 miles/32 miles Not rated 2014 13/13 Palmucho Transmission line 100% Chile USD 6 miles BBB/ -- /A- 2007 15 Chile TL3 Transmission line 100% Chile USD 50 miles A/A2/A- 1993 N/A Chile TL4 Transmission line 100% Chile USD 63 miles Not rated 2016 49 Skikda Water 34.20% (6) Algeria USD 3.5 M ft3/day Not rated 2009 11 Honaine Water 25.50% (7) Algeria USD 7 M ft3/day Not rated 2012 15 Tenes Water 51% (8) Algeria USD 7 M ft3/day Not rated 2015 18 (1) 65% of the shares in Chile PV 1, Chile PV 2 and Chile PV 3 are indirectly held by financial partners through the renewable energy platform of the Company in Chile. (2) Itochu Corporation holds 30% of the shares in each of Solaben 2 and Solaben 3. (3) JGC holds 13% of the shares in each of Solacor 1 and Solacor 2. (4) Instituto para la Diversificación y Ahorro de la Energía (“Idae”) holds 20% of the shares in Seville PV. (5) Kaxu is owned by the Company (51%), Industrial Development Corporation of South Africa (29%) and Kaxu Community Trust (20%). (6) Algerian Energy Company, SPA owns 49% of Skikda and Sacyr Agua, S.L. owns the remaining 16.8%. (7) Algerian Energy Company, SPA owns 49% of Honaine and Sacyr Agua, S.L. owns the remaining 25.5%. (8) Algerian Energy Company, SPA owns 49% of Tenes. (9) Certain contracts denominated in U.S. dollars are payable in local currency. (10) 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. (11) Refers to the credit rating of two Community Choice Aggregators: Silicon Valley Clean Energy and Monterrey Bar Community Power, both with A Rating from S&P and Southern California Public Power Authority. The third off-taker is not rated. (12) Refers to the credit rating of Uruguay, as UTE (Administración Nacional de Usinas y Transmisoras Eléctricas) is unrated. (13) Refers to the credit rating of the Republic of South Africa. The off-taker is Eskom, which is a state-owned utility company in South Africa. (14) Refers to the credit rating of a diversified mix of 22 high credit quality clients (~41% A+ rating or higher, the rest is unrated). (15) Including ATN Expansion 1 & 2. (16) As of September (*) Commercial Operation Date.

Financial information by segm_2

Financial information by segment (Tables)	9 Months Ended
	Sep. 30, 2022
Financial information by segment [Abstract]
Revenues and Adjusted EBITDA, assets and liabilities by operating segments and business sectors	a) The following tables show Revenue and Adjusted EBITDA by operating segments and business sectors for the nine-month periods ended , and : Revenue Adjusted EBITDA For the nine-month period ended September 30, For the nine-month period ended September 30, ($ in thousands) Geography 2022 2021 2022 2021 North America 323,693 308,661 258,161 243,361 South America 122,549 117,129 95,080 90,626 EMEA 412,163 514,628 277,400 300,094 Total 858,405 940,418 630,641 634,081 Revenue Adjusted EBITDA For the nine-month period ended September 30, For the nine-month period ended September 30, ($ in thousands) Business sector 2022 2021 2022 2021 Renewable energy 652,757 725,756 469,851 464,861 Efficient natural gas & heat 81,944 93,524 66,808 76,387 Transmission lines 83,278 80,428 66,226 64,243 Water 40,424 40,710 27,756 28,590 Total 858,405 940,418 630,641 634,081 The reconciliation of segment Adjusted EBITDA with the loss attributable to the Company is as follows: For the nine-month period ended September 30, ($ in thousands) 2022 2021 Loss attributable to the Company (9,473 ) (18,166 ) Profit attributable to non-controlling interests 11,278 11,720 Income tax 12,975 42,390 Financial expense, net 224,893 251,422 Depreciation, amortization, and impairment charges 374,059 334,916 Depreciation and amortization, financial expense and income tax expense of unconsolidated affiliates (pro rata of Atlantica’s equity ownership) 16,909 11,799 Total segment Adjusted EBITDA 630,641 634,081
Assets and liabilities by geography	b) The assets and liabilities by operating segments (and business sector) as of September 30, 2022 and December 31, 2021 are as follows: Assets and liabilities by geography as of September 30, 2022: North America South America EMEA Balance as of September 30, 2022 ($ in thousands) Assets allocated Contracted concessional assets 3,191,373 1,274,981 2,872,095 7,338,449 Investments carried under the equity method 222,624 - 45,528 268,151 Current financial investments 117,327 29,244 43,498 190,069 Cash and cash equivalents (project companies) 211,483 99,880 364,179 675,542 Subtotal allocated 3,742,807 1,404,105 3,325,300 8,472,211 Unallocated assets Other non-current assets 305,507 Other current assets (including cash and cash equivalents at holding company level) 368,614 Subtotal unallocated 674,121 Total assets 9,146,332 North America South America EMEA Balance as of September 30, 2022 ($ in thousands) Liabilities allocated Long-term and short-term project debt 1,771,257 857,401 1,993,282 4,621,940 Grants and other liabilities 1,019,619 25,115 197,325 1,242,059 Subtotal allocated 2,790,876 882,516 2,190,607 5,863,999 Unallocated liabilities Long-term and short-term corporate debt 955,540 Other non-current liabilities 344,293 Other current liabilities 177,132 Subtotal unallocated 1,476,965 Total liabilities 7,340,964 Equity unallocated 1,805,368 Total liabilities and equity unallocated 3,282,333 Total liabilities and equity 9,146,332 Assets and liabilities by geography as of December 31, 2021: North America South America EMEA Balance as of December 31, 2021 ($ in thousands) Assets allocated Contracted concessional assets 3,355,669 1,231,276 3,434,623 8,021,568 Investments carried under the equity method 253,221 - 41,360 294,581 Current financial investments 135,224 28,155 44,000 207,379 Cash and cash equivalents (project companies) 171,744 74,149 287,655 533,548 Subtotal allocated 3,915,858 1,333,580 3,807,638 9,057,076 Unallocated assets Other non-current assets 268,876 Other current assets (including cash and cash equivalents at holding company level) 425,978 Subtotal unallocated 694,854 Total assets 9,751,930 North America South America EMEA Balance as of December 31, 2021 ($ in thousands) Liabilities allocated Long-term and short-term project debt 1,792,739 887,497 2,355,957 5,036,193 Grants and other liabilities 1,051,679 14,445 197,620 1,263,744 Subtotal allocated 2,844,418 901,942 2,553,577 6,299,937 Unallocated liabilities Long-term and short-term corporate debt 1,023,071 Other non-current liabilities 532,312 Other current liabilities 148,005 Subtotal unallocated 1,703,388 Total liabilities 8,003,325 Equity unallocated 1,748,605 Total liabilities and equity unallocated 3,451,993 Total liabilities and equity 9,751,930
Assets and liabilities by business sector	Assets and liabilities by business sector as of September 30, 2022: Renewable energy Efficient natural gas & heat Transmission lines Water Balance as of September 30, 2022 ($ in thousands) Assets allocated Contracted concessional assets 5,893,598 476,590 806,781 161,480 7,338,449 Investments carried under the equity method 211,156 13,841 - 43,154 268,151 Current financial investments 4,091 115,893 28,999 41,086 190,069 Cash and cash equivalents (project companies) 514,378 67,744 66,008 27,412 675,542 Subtotal allocated 6,623,223 674,068 901,788 273,132 8,472,211 Unallocated assets Other non-current assets 305,507 Other current assets (including cash and cash equivalents at holding company level) 368,614 Subtotal unallocated 674,121 Total assets 9,146,332 Renewable energy Efficient natural gas & heat Transmission lines Water Balance as of September 30, 2022 ($ in thousands) Liabilities allocated Long-term and short-term project debt 3,483,395 452,360 598,626 87,559 4,621,940 Grants and other liabilities 1,201,593 31,998 6,118 2,350 1,242,059 Subtotal allocated 4,684,988 484,358 604,744 89,909 5,863,999 Unallocated liabilities Long-term and short-term corporate debt 955,540 Other non-current liabilities 344,293 Other current liabilities 177,132 Subtotal unallocated 1,476,965 Total liabilities 7,340,964 Equity unallocated 1,805,368 Total liabilities and equity unallocated 3,282,333 Total liabilities and equity 9,146,332 Assets and liabilities by business sector as of December 31, 2021: Renewable energy Efficient natural & heat Transmission lines Water Balance as of December 31, 2021 ($ in thousands) Assets allocated Contracted concessional assets 6,533,408 517,247 805,987 164,926 8,021,568 Investments carried under the equity method 240,302 15,358 - 38,921 294,581 Current financial investments 10,761 128,461 27,813 40,344 207,379 Cash and cash equivalents (project companies) 442,213 25,392 44,574 21,369 533,548 Subtotal allocated 7,226,684 686,458 878,374 265,560 9,057,076 Unallocated assets Other non-current assets 268,876 Other current assets (including cash and cash equivalents at holding company level) 425,978 Subtotal unallocated 694,854 Total assets 9,751,930 Renewable energy Efficient natural & heat Transmission lines Water Balance as of December 31, 2021 ($ in thousands) Liabilities allocated Long-term and short-term project debt 3,857,313 478,724 602,278 97,878 5,036,193 Grants and other liabilities 1,244,346 11,212 5,795 2,391 1,263,744 Subtotal allocated 5,101,659 489,936 608,073 100,269 6,299,937 Unallocated liabilities Long-term and short-term corporate debt 1,023,071 Other non-current liabilities 532,312 Other current liabilities 148,005 Subtotal unallocated 1,703,388 Total liabilities 8,003,325 Equity unallocated 1,748,605 Total liabilities and equity unallocated 3,451,993 Total liabilities and equity 9,751,930
Depreciation, amortization and impairment charges recognized	c) The amount of depreciation, amortization and impairment charges recognized for the nine-month periods ended September 30, 2022 and 2021 are as follows: For the nine-month period ended September 30, Depreciation, amortization and impairment by geography 2022 2021 ($ in thousands) North America (167,497 ) (119,196 ) South America (46,467 ) (43,388 ) EMEA (160,095 ) (172,332 ) Total (374,059 ) (334,916 ) For the nine-month period ended September 30, Depreciation, amortization and impairment by business sectors 2022 2021 ($ in thousands) Renewable energy (322,183 ) (334,513 ) Efficient natural gas & heat (23,884 ) 22,956 Transmission lines (26,321 ) (24,194 ) Water (1,671 ) 836 Total (374,059 ) (334,916 )

Business combinations (Tables)

Business combinations (Tables)	9 Months Ended
	Sep. 30, 2022
Business combinations [Abstract]
Fair value of assets and liabilities consolidated at the effective acquisition date	The fair value of assets and liabilities consolidated at the effective acquisition date is shown in the following table: Business combinations for the nine-month period ended September 30, 2022 Contracted concessional assets 74,969 Cash & cash equivalents 1,057 Other current assets 8,282 Non-current Project debt (1,422 ) Other current and non-current liabilities (18,919 ) Non-controlling interests (14,300 ) Total net assets acquired at fair value 49,667 Asset acquisition – purchase price paid (49,667 ) Net result of business combinations - The fair value of assets and liabilities consolidated at the effective acquisition date is shown in the following table: Business combinations for the year ended December 31 2021 Coso Other Total Contracted concessional assets 383,153 159,575 542,728 Deferred tax asset - 4,410 4,410 O ther non-current assets 11,024 1,943 12,967 Cash & cash equivalents 6,363 14,649 21,012 Other current assets 14,378 46,632 61,010 Non-current Project debt (248,544 ) (39,808 ) (288,352 ) Current Project debt (13,415 ) (25,366 ) (38,781 ) Deferred tax liabilities - (4,910 ) (4,910 ) Other current and non-current liabilities (22,959 ) (64,922 ) (87,881 ) Non-controlling interests - (8,287 ) (8,287 ) Total net assets acquired at fair value 130,000 83,916 213,916 Asset acquisition – purchase price paid (130,000 ) (80,868 ) (210,868 ) Fair value of previously held 15 - (3,048 ) (3,048 ) Net result of business combinations - - -

Contracted concessional assets

Contracted concessional assets (Tables)	9 Months Ended
	Sep. 30, 2022
Contracted concessional assets [Abstract]
Movements of contracted concessional assets	The detail of contracted concessional assets included in the heading ‘Contracted concessional assets’ as of September 30, 2022 and December 31, 2021 is as follows: Financial assets under IFRIC 12 Financial assets under IFRS 16 Intangible assets under IFRIC 12 Intangible assets under IFRS 16 (Lessee) Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 Balance as of September 30, 2022 ($ in thousands) Contracted concessional assets cost 829,083 2,808 8,622,516 85,932 952,393 10,492,732 Amortization and impairment (89,999 ) - (2,883,265 ) (16,061 ) (164,958 ) (3,154,283 ) Total 739,084 2,808 5,739,251 69,871 787,435 7,338,449 Financial assets under IFRIC 12 Financial assets under IFRS 16 Intangible assets under IFRIC 12 Intangible assets under IFRS 16 (Lessee) Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 Balance as of December 31, 2021 ($ in thousands) Contracted concessional assets cost 874,525 2,843 9,202,539 82,818 856,410 11,019,135 Amortization and impairment (62,889 ) - (2,769,345 ) (14,105 ) (151,228 ) (2,997,567 ) Total 811,636 2,843 6,433,194 68,713 705,182 8,021,568

Investments carried under the_2

Investments carried under the equity method (Tables)	9 Months Ended
	Sep. 30, 2022
Investments carried under the equity method [Abstract]
Breakdown of investments held in associates	The table below shows the breakdown of the investments held in associates as of September 30, 2022 and December 31, 2021: Balance as of September 30, 2022 Balance as of December 31, 2021 ($ in thousands) 2 007 Vento II, LLC 185,418 195,952 Windlectric Inc 23,365 41,911 Myah Bahr Honaine, S.P.A. 43,154 38,922 Pemcorp SAPI de CV 13,841 15,358 Pectonex, R.F. Proprietary Limited 1,430 1,495 Evacuación Valdecaballeros, S.L. 918 923 Liberty Infraestructuras S.L. 25 20 Total 268,151 294,581

Financial investments (Tables)

Financial investments (Tables)	9 Months Ended
	Sep. 30, 2022
Financial investments [Abstract]
Non-current and Current financial investments	The detail of Non-current and Current financial investments as of September 30, 2022 and December 31, 2021 is as follows: Balance as of September 30, 2022 Balance as of December 31, 2021 ($ in thousands) Fair Value through OCI (Investment in Ten West link) 15,959 14,459 Derivative assets (Note 9) 99,044 10,807 Other receivable accounts at amortized cost 71,872 71,342 Total non-current financial investments 186,875 96,608 Contracted concessional financial assets 184,392 188,912 Derivative assets (Note 9) 5,046 2,153 Other receivable accounts at amortized cost 631 16,314 Total current financial investments 190,069 207,379

Derivative financial instrume_2

Derivative financial instruments (Tables)	9 Months Ended
	Sep. 30, 2022
Derivative financial instruments [Abstract]
Fair value amount of derivative financial instruments	The breakdowns of the fair value amount of the derivative financial instruments as of September 30, 2022 and December 31, 2021 are as follows: Balance as of September 30, 2022 Balance as of December 31, 2021 ($ in thousands) Assets Liabilities Assets Liabilities Interest rate cash flow hedge 97,044 40,645 9,550 206,763 Foreign exchange derivatives instruments 7,046 - 3,410 - Notes conversion option (Note 14) - 9,891 - 16,690 Total 104,090 50,536 12,960 223,453

Related parties (Tables)

Related parties (Tables)	9 Months Ended
	Sep. 30, 2022
Related parties [Abstract]
Related party receivables and payables	Details of balances with related parties as of September 30, 2022 and December 31, 2021 are as follows: Balance as of September 30, Balance as of December 31, ($ in thousands) 2022 2021 Credit receivables (current) 3,695 19,387 Credit receivables (non-current) 17,006 15,768 Total receivables from related parties 20,701 35,155 Credit payables (current) 8,053 9,494 Credit payables (non-current) - 5 Total payables to related parties 8,053 9,499
Related party transactions	The transactions carried out by entities included in these Consolidated Condensed Interim Financial Statements with related parties, for the nine-month periods ended September 30, 2022 and 2021 have been as follows: For the nine-month period ended September 30, 2022 2021 ($ in thousands) Financial income 996 1,547 Financial expenses (143 ) (89 )

Trade and other receivables (Ta

Trade and other receivables (Tables)	9 Months Ended
	Sep. 30, 2022
Trade and other receivables [Abstract]
Trade and other receivables	Trade and other receivables as of September 30, 2022 and December 31, 2021, consist of the following: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Trade receivables 158,611 227,343 Tax receivables 39,700 59,350 Prepayments 24,054 9,342 Other accounts receivable 8,351 11,108 Total 230,716 307,143

Corporate debt (Tables)

Corporate debt (Tables)	9 Months Ended
	Sep. 30, 2022
Corporate debt [Abstract]
Corporate debt	The breakdown of corporate debt as of September 30, 2022 and December 31, 2021 is as follows: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Non-current 934,795 995,190 Current 20,745 27,881 Total Corporate Debt 955,540 1,023,071
Repayment schedule for corporate debt	The repayment schedule for the corporate debt as of September 30, 2022 is as follows: Remainder of 2022 Between January and September 2023 Between October and December 2023 2024 2025 2026 Subsequent years Total ($ in thousands) 2017 Credit Facility 6 - - 8,822 - - - 8,828 Commercial Paper 10,967 2,145 - - - - - 13,112 2020 Green Private Placement 356 - - - - 282,052 - 282,408 2020 Note Issuance Facility - - - - - - 134,778 134,778 Green Exchangeable Notes 957 - - - 106,330 - - 107,287 Green Senior Notes 5,087 - - - - - 394,833 399,920 Other bank loans 25 1,202 1,634 2,859 2,859 628 - 9,207 Total 17,398 3,347 1,634 11,681 109,189 282,680 529,611 955,540 The repayment schedule for the corporate debt as of December 31, 2021 was as follows 2022 2023 2024 2025 2026 Subsequent years Total 2017 Credit Facility 5 8,199 - - - - 8,204 Commercial Paper 24,422 - - - - - 24,422 2020 Green Private Placement 359 - - - 327,081 - 327,440 2020 Note Issuance Facility - - - - - 155,814 155,814 Green Exchangeable Notes 2,121 - - 104,289 - - 106,410 Green Senior Note 963 - - - - 394,155 395,118 Other bank loans 11 1,895 1,895 1,862 - - 5,663 Total 27,881 10,094 1,895 106,151 327,081 549,969 1,023,071

Project debt (Tables)

Project debt (Tables)	9 Months Ended
	Sep. 30, 2022
Project debt [Abstract]
Project debt	The breakdown of project debt for both non-current and current liabilities as of September 30, 2022 and December 31, 2021 is as follows: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Non-current 4,249,902 4,387,674 Current 372,038 648,519 Total Project debt 4,621,940 5,036,193
Repayment schedule for project debt	The repayment schedule for project debt in accordance with the financing arrangements as of September 30, 2022, is as follows and is consistent with the projected cash flows of the related projects: Remainder of 2022 Interest payment Nominal repayment Between January and September 2023 Between October December 2023 2024 2025 2026 Subsequent years Total ($ in thousands) 52,074 170,195 149,769 174,980 341,020 453,890 381,112 2,898,900 4,621,940 The repayment schedule for project debt in accordance with the financing arrangements and assuming there would be no acceleration of the Kaxu debt repayment as of December 31, 2021, was as follows and was consistent with the projected cash flows of the related projects: 2022 2023 2024 2025 2026 Subsequent years Total Interest payment Nominal repayment 18,017 317,388 355,956 369,528 498,712 411,514 3,065,078 5,036,193

Grants and other liabilities (T

Grants and other liabilities (Tables)	9 Months Ended
	Sep. 30, 2022
Grants and other liabilities [Abstract]
Grants and other non-current liabilities	Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Grants 926,085 970,557 Other Liabilities 315,974 293,187 Grants and other non-current liabilities 1,242,059 1,263,744

Trade payables and other curr_2

Trade payables and other current liabilities (Tables)	9 Months Ended
	Sep. 30, 2022
Trade payables and other current liabilities [Abstract]
Trade payables and other current liabilities	Trade payables and other current liabilities as of September 30, 2022 and December 31, 2021 are as follows: Balance as of September 30, Balance as of December 31, 2022 2021 ($ in thousands) Trade accounts payable 87,054 79,052 Down payments from clients 6,286 542 Other accounts payable 42,354 34,313 Total 135,694 113,907

Financial expense, net (Tables)

Financial expense, net (Tables)	9 Months Ended
	Sep. 30, 2022
Financial expense, net [Abstract]
Financial income	The following table sets forth financial income and expenses for the nine-month periods ended September 30, 2022 and 2021: For the nine-month period ended September 30, 2022 2021 Financial income ($ in thousands) Interest income from loans and credits 1,143 1,549 Interest rate gains on derivatives: cash flow hedges 2,224 299 Total 3,367 1,848
Financial expense	For the nine-month period ended September 30, 2022 2021 Financial expense ($ in thousands) Interest on loans and notes (211,484 ) (232,065 ) Interest rates losses derivatives: cash flow hedges (32,821 ) (44,935 ) Total (244,305 ) (277,000 )
Other financial income and expenses	The following table sets out Other financial income and expenses for the nine-month periods ended September 30, 2022, and 2021: For the nine September 30 Other financial income / (expenses) 2022 2021 ($ in thousands) Other financial income 18,790 35,355 Other financial losses (16,582 ) (13,671 ) Total 2,208 21,684

Other operating income and ex_2

Other operating income and expenses (Tables)	9 Months Ended
	Sep. 30, 2022
Other operating income and expenses [Abstract]
Other operating income	The table below shows the detail of Other operating income and expenses for the nine-month periods ended September 30, 2022, and 2021: Other operating income For the nine-month period ended September 30, 2022 2021 ($ in thousands) Grants (Note 16) 44,364 44,449 Insurance proceeds and other 10,496 13,148 Total 54,860 57,597
Other operating expenses	Other operating expenses For the nine September 30 2022 2021 ($ in thousands) Raw materials and consumables used (13,710 ) (64,756 ) Leases and fees (8,571 ) (6,451 ) Operation and maintenance (106,118 ) (117,750 ) Independent professional services (28,096 ) (27,297 ) Supplies (45,678 ) (25,270 ) Insurance (34,446 ) (33,943 ) Levies and duties (13,596 ) (25,948 ) Other expenses (11,220 ) (19,458 ) Total (261,435 ) (320,873 )

Earnings per share (Tables)

Earnings per share (Tables)	9 Months Ended
	Sep. 30, 2022
Earnings per share [Abstract]
Earnings per share	Diluted earnings per share for the nine-month period ended September 30, 2022 have been calculated considering the potential issuance of 3,347,305 shares (3,347,305 shares for the nine-month period ended September 30, 2021) on the settlement of the Green Exchangeable Notes (Note 14) and the potential issuance of 596,681 shares (510,169 shares for the nine-month period ended September 30, 2021) to Algonquin under the agreement signed on August 3, 2021, according to which Algonquin has the option, on a quarterly basis, to subscribe such number of shares to maintain its percentage in Atlantica in relation to the use of the ATM program (Note 13). Item For the nine-month period ended September 30, 2022 2021 ($ in thousands) Loss attributable to Atlantica (9,473 ) (18,166 ) Average number of ordinary shares outstanding (thousands) - basic 114,236 110,749 Average number of ordinary shares outstanding (thousands) - diluted 118,197 114,156 Earnings per share for the period (U.S. dollar per share) - basic (0.08 ) (0.16 ) Earnings per share for the period (U.S. dollar per share) - diluted (0.08 ) (0.16 )

Nature of the business, Descrip

Nature of the business, Description (Details) $ in Thousands				3 Months Ended
	Sep. 02, 2022 USD ($) MWh MW	Apr. 04, 2022 USD ($) MW	Jan. 17, 2022 USD ($) Substation MW	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Nature of the business [Abstract]
Investments accounted for using equity method				$ 268,151	$ 294,581
Chile TL4 [Member]
Nature of the business [Abstract]
Installed capacity | MW			63
Number of substations | Substation			2
Investments accounted for using equity method			$ 39,000	$ 8,000
Contract life				50 years
Italy PV 4 [Member]
Nature of the business [Abstract]
Installed capacity | MW		3.6
Investments accounted for using equity method		$ 3,700
Chile PV 3 [Member]
Nature of the business [Abstract]
Installed capacity | MW	73
Investments accounted for using equity method	$ 7,700
Percentage of equity interest acquired	35%
Batteries capacity expected to install | MWh	100

Nature of the business, Assets

Nature of the business, Assets acquired (Details) $ in Thousands

9 Months Ended

12 Months Ended

Dec. 14, 2021 USD ($) MW

Nov. 25, 2021 USD ($) MW

Aug. 06, 2021 USD ($) Plant MW

Jun. 16, 2021 MW

May 14, 2021 USD ($) MW

Apr. 07, 2021 USD ($) MW

Jan. 08, 2021

Jan. 07, 2021

Sep. 30, 2022 USD ($) Asset Plant MW

Dec. 31, 2021 USD ($)

Sep. 02, 2022 USD ($)

Sep. 30, 2021

Jul. 15, 2021 USD ($)

Jun. 15, 2021 USD ($)

Dec. 04, 2020

Nature of the business [Abstract]

Investment under the equity method

$ 268,151

$ 294,581

Interest rate

2.50%

Number of assets under construction | Asset

3

Solana [Member]

Nature of the business [Abstract]

Ownership interest

100%

Chile PV 3 [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 7,700

Percentage of interest acquired

35%

Italy Solar PV [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 9,000

Gross capacity | MW

3.7

Number of solar plants acquired | Plant

2

Italy Solar PV 3 [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 4,000

Gross capacity | MW

2.5

Calgary District Heating Center [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 22,900

Gross capacity | MW

55

Weighted average contract life

20 years

La Sierpe [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 23,500

Gross capacity | MW

20

Rioglass [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 17,100

Percentage of interest acquired

42.50%

85%

42.50%

Ownership interest

57.50%

15%

Rioglass [Member] | Solana [Member]

Nature of the business [Abstract]

Ownership interest

100%

Coso [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 130,000

Gross capacity | MW

135

Period of PPA

18 years

Coso [Member] | Project Debt [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 40,000

Vento II [Member]

Nature of the business [Abstract]

Investment under the equity method

$ 180,700

Percentage of interest acquired

49%

Gross capacity | MW

596

Ownership interest

51%

Period of PPA

5 years

Albisu [Member]

Nature of the business [Abstract]

Gross capacity | MW

10

Period of PPA

15 years

la Tolua and Tierra Linda [Member]

Nature of the business [Abstract]

Gross capacity | MW

30

Period of PPA

15 years

Number of solar plants acquired | Plant

2

Number of assets under construction | Asset

3

Additional capacity | MW

30

Nature of the business, Main as

Nature of the business, Main assets owned (Details) - € / MWh		9 Months Ended	12 Months Ended
		Sep. 30, 2022	Dec. 31, 2021
Nature of the business [Abstract]
Market price per MWh		121.9	48.82
Remuneration on operation payment per MWh		0
ACT [Member]
Nature of the business [Abstract]
Type		Efficient natural gas & heat
Ownership		100%
Location		Mexico
Currency	[1]	USD
Capacity (gross)		300 MW
Counterparty credit ratings	[2]	BBB/B1/BB-
COD	[3]	2013
Contract years left	[4]	11 years
Monterrey [Member]
Nature of the business [Abstract]
Type		Efficient natural gas &heat
Ownership		30%
Location		Mexico
Currency	[1]	USD
Capacity (gross)		142 MW
Counterparty credit ratings	[2],[5]	Not rated
COD	[3]	2018
Contract years left	[4]	24 years
Calgary [Member]
Nature of the business [Abstract]
Type		Efficient natural gas &heat
Ownership		100%
Location		Canada
Currency	[1]	CAD
Capacity (gross)		55 MWt
Counterparty credit ratings	[2],[6]	~41% A+ or higher
COD	[3]	2010
Contract years left	[4]	18 years
ATN [Member]
Nature of the business [Abstract]
Type	[5]	Transmission line
Ownership	[5]	100%
Location	[5]	Peru
Currency	[1],[5]	USD
Capacity (gross)	[5]	379 miles
Counterparty credit ratings	[2],[5]	BBB/Baa1/BBB
COD	[3],[5]	2011
Contract years left	[4],[5]	18 years
ATS [Member]
Nature of the business [Abstract]
Type		Transmission line
Ownership		100%
Location		Peru
Currency	[1]	USD
Capacity (gross)		569 miles
Counterparty credit ratings	[2]	BBB/Baa1/BBB
COD	[3]	2014
Contract years left	[4]	21 years
ATN 2 [Member]
Nature of the business [Abstract]
Type		Transmission line
Ownership		100%
Location		Peru
Currency	[1]	USD
Capacity (gross)		81 miles
Counterparty credit ratings	[2]	Not rated
COD	[3]	2015
Contract years left	[4]	11 years
Quadra 1 & 2 [Member]
Nature of the business [Abstract]
Type		Transmission line
Ownership		100%
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]	13 years
Quadra 2 [Member]
Nature of the business [Abstract]
Contract years left	[4]	13 years
Palmucho [Member]
Nature of the business [Abstract]
Type		Transmission line
Ownership		100%
Location		Chile
Currency	[1]	USD
Capacity (gross)		6 miles
Counterparty credit ratings	[2]	BBB/ -- /A-
COD	[3]	2007
Contract years left	[4]	15 years
Chile TL3 [Member]
Nature of the business [Abstract]
Type		Transmission line
Ownership		100%
Location		Chile
Currency	[1]	USD
Capacity (gross)		50 miles
Counterparty credit ratings	[2]	A/A2/A-
COD	[3]	1993
Chile TL4 [Member]
Nature of the business [Abstract]
Type		Transmission line
Ownership	[7]	100%
Location		Chile
Currency	[1]	USD
Capacity (gross)		63 miles
Counterparty credit ratings	[2]	Not rated
COD	[3]	2016
Contract years left	[4]	49 years
Skikda [Member]
Nature of the business [Abstract]
Type		Water
Ownership	[8]	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]	11 years
Skikda [Member] | Algerian Energy Company, SPA [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		49%
Skikda [Member] | Sacyr Agua S.L. [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		16.80%
Honaine [Member]
Nature of the business [Abstract]
Type		Water
Ownership	[9]	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]	15 years
Honaine [Member] | Algerian Energy Company, SPA [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		49%
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	[10]	51%
Location		Algeria
Currency	[1]	USD
Capacity (gross)		7 M ft3/day
Counterparty credit ratings	[2]	Not rated
COD	[3]	2015
Contract years left	[4]	18 years
Tenes [Member] | Algerian Energy Company, SPA [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		49%
PS10 & PS20 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
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]	10 years
PS20 [Member]
Nature of the business [Abstract]
Contract years left	[4]	12 years
Solana [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		Arizona (USA)
Currency	[1]	USD
Capacity (gross)		280 MW
Counterparty credit ratings	[2]	BBB+/A3/BBB+
COD	[3]	2013
Contract years left	[4]	21 years
Mojave [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		California (USA)
Currency	[1]	USD
Capacity (gross)		280 MW
Counterparty credit ratings	[2]	BB-/ -- /BB
COD	[3]	2014
Contract years left	[4]	17 years
Coso [Member]
Nature of the business [Abstract]
Type		Renewable (Geothermal)
Ownership		100%
Location		California (USA)
Currency	[1]	USD
Capacity (gross)		135 MW
Counterparty credit ratings	[11]	Investment Grade
COD	[3]	1987-1989
Contract years left	[4]	17 years
Elkhorn Valley [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership		49%
Location		Oregon (USA)
Currency	[1]	USD
Capacity (gross)		101 MW
Counterparty credit ratings	[2]	BBB/Baa1/--
COD	[3]	2007
Contract years left	[4]	5 years
Prairie Star [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership		49%
Location		Minnesota (USA)
Currency	[1]	USD
Capacity (gross)		101 MW
Counterparty credit ratings	[2]	--/A3/A-
COD	[3]	2007
Contract years left	[4]	5 years
Twin Groves II [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership		49%
Location		Illinois (USA)
Currency	[1]	USD
Capacity (gross)		198 MW
Counterparty credit ratings	[2]	BBB/Baa2/--
COD	[3]	2008
Contract years left	[4]	3 years
Lone Star II [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership		49%
Location		Texas (USA)
Currency	[1]	USD
Capacity (gross)		196 MW
Counterparty credit ratings	[2]	Not rated
COD	[3]	2008
Chile PV I [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership	[12]	35%
Location		Chile
Currency	[1]	USD
Capacity (gross)		55 MW
Counterparty credit ratings	[2]	N/A
COD	[3]	2016
Percentage of non-controlling interests		65%
Chile PV 2 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership	[12]	35%
Location		Chile
Currency	[1]	USD
Capacity (gross)		40 MW
Counterparty credit ratings	[2]	Not rated
COD	[3]	2017
Contract years left	[4]	8 years
Percentage of non-controlling interests		65%
Chile PV 3 [Member]
Nature of the business [Abstract]
Type	[12]	Renewable (Solar)
Ownership	[12]	35%
Location	[12]	Chile
Currency	[1],[12]	USD
Capacity (gross)	[12]	73 MW
Counterparty credit ratings	[2],[12]	Not rated
COD	[3],[12]	2014
Percentage of non-controlling interests		65%
La Sierpe [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		Colombia
Currency	[1]	COP
Capacity (gross)		20 MW
Counterparty credit ratings	[2]	Not rated
COD	[3]	2021
Contract years left	[4]	13 years
Palmatir [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership	[10]	100%
Location		Uruguay
Currency	[1]	USD
Capacity (gross)		50 MW
Counterparty credit ratings	[2],[13]	BBB/Baa2/BBB-
COD	[3]	2014
Contract years left	[4]	12 years
Cadonal [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership	[10]	100%
Location		Uruguay
Currency	[1]	USD
Capacity (gross)		50 MW
Counterparty credit ratings	[2],[13]	BBB/Baa2/BBB-
COD	[3]	2014
Contract years left	[4]	12 years
Melowind [Member]
Nature of the business [Abstract]
Type		Renewable (Wind)
Ownership	[10]	100%
Location		Uruguay
Currency	[1]	USD
Capacity (gross)		50 MW
Counterparty credit ratings	[2]	BBB/Baa2/BBB-
COD	[3]	2015
Contract years left	[4]	13 years
Mini-Hydro [Member]
Nature of the business [Abstract]
Type		Renewable (Hydraulic)
Ownership	[10]	100%
Location		Peru
Currency	[1]	USD
Capacity (gross)		4 MW
Counterparty credit ratings	[2]	BBB/Baa1/BBB
COD	[3]	2012
Contract years left	[4]	10 years
Solaben 2 & 3 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership	[14]	70%
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%
Solaben 2 [Member]
Nature of the business [Abstract]
Contract years left	[4]	15 years
Solaben 3 [Member]
Nature of the business [Abstract]
Contract years left	[4]	15 years
Solacor 1 & 2 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership	[15]	87%
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%
Solacor 1 [Member]
Nature of the business [Abstract]
Contract years left	[4]	14 years
Solacor 2 [Member]
Nature of the business [Abstract]
Contract years left	[4]	14 years
Helioenergy 1 & 2 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
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]	14 years
Helioenergy 2 [Member]
Nature of the business [Abstract]
Contract years left	[4]	14 years
Helios 1 & 2 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
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]	15 years
Helios 2 [Member]
Nature of the business [Abstract]
Contract years left	[4]	15 years
Solnova 1, 3 & 4 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
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]	13 years
Solnova 3 [Member]
Nature of the business [Abstract]
Contract years left	[4]	13 years
Solnova 4 [Member]
Nature of the business [Abstract]
Contract years left	[4]	13 years
Solaben 1 & 6 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
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]	16 years
Solaben 6 [Member]
Nature of the business [Abstract]
Contract years left	[4]	16 years
Italy PV 1 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		Italy
Currency	[1]	Euro
Capacity (gross)		1.6 MW
Counterparty credit ratings	[2]	BBB/Baa3/BBB
COD	[3]	2010
Contract years left	[4]	8 years
Italy PV 2 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		Italy
Currency	[1]	Euro
Capacity (gross)		2.1 MW
Counterparty credit ratings	[2]	BBB/Baa3/BBB
COD	[3]	2011
Contract years left	[4]	9 years
Italy PV 3 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		Italy
Currency	[1]	Euro
Capacity (gross)		2.5 MW
Counterparty credit ratings	[2]	BBB/Baa3/BBB
COD	[3]	2012
Contract years left	[4]	10 years
Italy PV 4 [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership		100%
Location		Italy
Currency	[1]	Euro
Capacity (gross)		3.6 MW
Counterparty credit ratings	[2]	BBB/Baa3/BBB
COD	[3]	2011
Contract years left	[4]	9 years
Seville PV [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership	[7]	80%
Location		Spain
Currency	[1]	Euro
Capacity (gross)		1 MW
Counterparty credit ratings	[2]	A/Baa1/A-
COD	[3]	2006
Contract years left	[4]	13 years
Seville PV [Member] | Idae [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		20%
Kaxu [Member]
Nature of the business [Abstract]
Type		Renewable (Solar)
Ownership	[16]	51%
Location		South Africa
Currency	[1]	Rand
Capacity (gross)		100 MW
Counterparty credit ratings	[2],[17]	BB-/Ba2/BB-
COD	[3]	2015
Contract years left	[4]	12 years
Kaxu [Member] | IDC [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		29%
Kaxu [Member] | Kaxu Community Trust [Member]
Nature of the business [Abstract]
Percentage of non-controlling interests		20%
[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 September 30, 2022.[5]Including ATN Expansion 1 & 2.[6]Refers to the credit rating of a diversified mix of 22 high credit quality clients (~41% A+ rating or higher, the rest is unrated).[7]Instituto para la Diversificación y Ahorro de la Energía (“Idae”) holds 20% of the shares in Seville PV.[8] Algerian Energy Company, SPA owns 49% of Skikda and Sacyr Agua, S.L. owns the remaining 16.8%. Algerian Energy Company, SPA owns 49% of Honaine and Sacyr Agua, S.L. owns the remaining 25.5%. 65% of the shares in Chile PV 1, Chile PV 2 and Chile PV 3 are indirectly held by financial partners through the renewable energy platform of the Company in Chile. Itochu Corporation holds 30% of the shares in each of Solaben 2 and Solaben 3. JGC holds 13% of the shares in each of Solacor 1 and Solacor 2. Kaxu is owned by the Company (51%), Industrial Development Corporation of South Africa (29%) and Kaxu Community Trust (20%).

Financial information by segm_3

Financial information by segment, Revenues and Adjusted EBITDA (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) Customer	Sep. 30, 2021 USD ($) Customer
Financial information by segment [Abstract]
Number of customers representing more than 10% of total revenues | Customer	2	2
Revenue	$ 858,405	$ 940,418
Adjusted EBITDA	630,641	634,081
Renewable Energy [Member]
Financial information by segment [Abstract]
Revenue	652,757	725,756
Adjusted EBITDA	469,851	464,861
Efficient Natural Gas & Heat [Member]
Financial information by segment [Abstract]
Revenue	81,944	93,524
Adjusted EBITDA	66,808	76,387
Transmission Lines [Member]
Financial information by segment [Abstract]
Revenue	83,278	80,428
Adjusted EBITDA	66,226	64,243
Water [Member]
Financial information by segment [Abstract]
Revenue	40,424	40,710
Adjusted EBITDA	27,756	28,590
North America [Member]
Financial information by segment [Abstract]
Revenue	323,693	308,661
Adjusted EBITDA	258,161	243,361
South America [Member]
Financial information by segment [Abstract]
Revenue	122,549	117,129
Adjusted EBITDA	95,080	90,626
EMEA [Member]
Financial information by segment [Abstract]
Revenue	412,163	514,628
Adjusted EBITDA	$ 277,400	$ 300,094

Financial information by segm_4

Financial information by segment, Reconciliation of segment Adjusted EBITDA (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Financial information by segment [Abstract]
Loss attributable to the Company	$ 9,473	$ 18,166
Profit attributable to non-controlling interests	(11,278)	(11,720)
Income tax	12,975	42,390
Financial expense, net	224,893	251,422
Depreciation, amortization, and impairment charges	374,059	334,916
Total segment Adjusted EBITDA	(630,641)	(634,081)
Reconciling Item [Member]
Financial information by segment [Abstract]
Loss attributable to the Company	(9,473)	(18,166)
Profit attributable to non-controlling interests	11,278	11,720
Income tax	12,975	42,390
Financial expense, net	224,893	251,422
Depreciation, amortization, and impairment charges	374,059	334,916
Depreciation and amortization, financial expense and income tax expense of unconsolidated affiliates (pro rata of Atlantica's equity ownership)	16,909	11,799
Total segment Adjusted EBITDA	$ 630,641	$ 634,081

Financial information by segm_5

Financial information by segment, Assets and liabilities by geography (Details) $ in Thousands, € in Millions	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 04, 2020 USD ($)	Dec. 04, 2020 EUR (€)
Assets allocated [Abstract]
Contracted concessional assets	$ 7,338,449	$ 8,021,568
Investments carried under the equity method	268,151	294,581
Current financial investments	190,069	207,379
Cash and cash equivalents (project companies)	781,575	622,689	$ 763,545	$ 868,501
Total assets	9,146,332	9,751,930
Liabilities allocated [Abstract]
Long-term and short-term project debt	4,621,940	5,036,193
Grants and other liabilities	1,242,059	1,263,744
Long-term and short-term corporate debt	955,540	1,023,071			$ 4,900	€ 5
Total liabilities	7,340,964	8,003,325
Equity	1,805,368	1,748,605	$ 1,761,589	$ 1,740,881
Total liabilities and equity	9,146,332	9,751,930
North America [Member]
Assets allocated [Abstract]
Contracted concessional assets	3,191,373	3,355,669
Investments carried under the equity method	222,624	253,221
Current financial investments	117,327	135,224
Cash and cash equivalents (project companies)	211,483	171,744
Total assets	3,742,807	3,915,858
Liabilities allocated [Abstract]
Long-term and short-term project debt	1,771,257	1,792,739
Grants and other liabilities	1,019,619	1,051,679
Total liabilities	2,790,876	2,844,418
South America [Member]
Assets allocated [Abstract]
Contracted concessional assets	1,274,981	1,231,276
Investments carried under the equity method	0	0
Current financial investments	29,244	28,155
Cash and cash equivalents (project companies)	99,880	74,149
Total assets	1,404,105	1,333,580
Liabilities allocated [Abstract]
Long-term and short-term project debt	857,401	887,497
Grants and other liabilities	25,115	14,445
Total liabilities	882,516	901,942
EMEA [Member]
Assets allocated [Abstract]
Contracted concessional assets	2,872,095	3,434,623
Investments carried under the equity method	45,528	41,360
Current financial investments	43,498	44,000
Cash and cash equivalents (project companies)	364,179	287,655
Total assets	3,325,300	3,807,638
Liabilities allocated [Abstract]
Long-term and short-term project debt	1,993,282	2,355,957
Grants and other liabilities	197,325	197,620
Total liabilities	2,190,607	2,553,577
Allocated [Member]
Assets allocated [Abstract]
Contracted concessional assets	7,338,449	8,021,568
Investments carried under the equity method	268,151	294,581
Current financial investments	190,069	207,379
Cash and cash equivalents (project companies)	675,542	533,548
Total assets	8,472,211	9,057,076
Liabilities allocated [Abstract]
Long-term and short-term project debt	4,621,940	5,036,193
Grants and other liabilities	1,242,059	1,263,744
Total liabilities	5,863,999	6,299,937
Unallocated [Member]
Assets allocated [Abstract]
Other non-current assets	305,507	268,876
Other current assets (including cash and cash equivalents at holding company level)	368,614	425,978
Total assets	674,121	694,854
Liabilities allocated [Abstract]
Long-term and short-term corporate debt	955,540	1,023,071
Other non-current liabilities	344,293	532,312
Other current liabilities	177,132	148,005
Total liabilities	1,476,965	1,703,388
Equity	1,805,368	1,748,605
Total liabilities and equity	$ 3,282,333	$ 3,451,993

Financial information by segm_6

Financial information by segment, Assets and liabilities by business sector (Details) $ in Thousands, € in Millions	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 04, 2020 USD ($)	Dec. 04, 2020 EUR (€)
Assets allocated [Abstract]
Contracted concessional assets	$ 7,338,449	$ 8,021,568
Investments carried under the equity method	268,151	294,581
Current financial investments	190,069	207,379
Cash and cash equivalents (project companies)	781,575	622,689	$ 763,545	$ 868,501
Total assets	9,146,332	9,751,930
Liabilities allocated [Abstract]
Long-term and short-term project debt	4,621,940	5,036,193
Grants and other liabilities	1,242,059	1,263,744
Long-term and short-term corporate debt	955,540	1,023,071			$ 4,900	€ 5
Total liabilities	7,340,964	8,003,325
Equity	1,805,368	1,748,605	$ 1,761,589	$ 1,740,881
Total liabilities and equity	9,146,332	9,751,930
Renewable Energy [Member]
Assets allocated [Abstract]
Contracted concessional assets	5,893,598	6,533,408
Investments carried under the equity method	211,156	240,302
Current financial investments	4,091	10,761
Cash and cash equivalents (project companies)	514,378	442,213
Total assets	6,623,223	7,226,684
Liabilities allocated [Abstract]
Long-term and short-term project debt	3,483,395	3,857,313
Grants and other liabilities	1,201,593	1,244,346
Total liabilities	4,684,988	5,101,659
Efficient Natural Gas & Heat [Member]
Assets allocated [Abstract]
Contracted concessional assets	476,590	517,247
Investments carried under the equity method	13,841	15,358
Current financial investments	115,893	128,461
Cash and cash equivalents (project companies)	67,744	25,392
Total assets	674,068	686,458
Liabilities allocated [Abstract]
Long-term and short-term project debt	452,360	478,724
Grants and other liabilities	31,998	11,212
Total liabilities	484,358	489,936
Transmission Lines [Member]
Assets allocated [Abstract]
Contracted concessional assets	806,781	805,987
Investments carried under the equity method	0	0
Current financial investments	28,999	27,813
Cash and cash equivalents (project companies)	66,008	44,574
Total assets	901,788	878,374
Liabilities allocated [Abstract]
Long-term and short-term project debt	598,626	602,278
Grants and other liabilities	6,118	5,795
Total liabilities	604,744	608,073
Water [Member]
Assets allocated [Abstract]
Contracted concessional assets	161,480	164,926
Investments carried under the equity method	43,154	38,921
Current financial investments	41,086	40,344
Cash and cash equivalents (project companies)	27,412	21,369
Total assets	273,132	265,560
Liabilities allocated [Abstract]
Long-term and short-term project debt	87,559	97,878
Grants and other liabilities	2,350	2,391
Total liabilities	89,909	100,269
Allocated [Member]
Assets allocated [Abstract]
Contracted concessional assets	7,338,449	8,021,568
Investments carried under the equity method	268,151	294,581
Current financial investments	190,069	207,379
Cash and cash equivalents (project companies)	675,542	533,548
Total assets	8,472,211	9,057,076
Liabilities allocated [Abstract]
Long-term and short-term project debt	4,621,940	5,036,193
Grants and other liabilities	1,242,059	1,263,744
Total liabilities	5,863,999	6,299,937
Unallocated [Member]
Assets allocated [Abstract]
Other non-current assets	305,507	268,876
Other current assets (including cash and cash equivalents at holding company level)	368,614	425,978
Total assets	674,121	694,854
Liabilities allocated [Abstract]
Long-term and short-term corporate debt	955,540	1,023,071
Other non-current liabilities	344,293	532,312
Other current liabilities	177,132	148,005
Total liabilities	1,476,965	1,703,388
Equity	1,805,368	1,748,605
Total liabilities and equity	$ 3,282,333	$ 3,451,993

Financial information by segm_7

Financial information by segment, Depreciation, amortization and impairment charges recognized (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	$ (374,059)	$ (334,916)
North America [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	(167,497)	(119,196)
South America [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	(46,467)	(43,388)
EMEA [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	(160,095)	(172,332)
Renewable Energy [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	(322,183)	(334,513)
Efficient Natural Gas & Heat [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	(23,884)	22,956
Transmission Lines [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	(26,321)	(24,194)
Water [Member]
Financial information by segment [Abstract]
Depreciation, amortization, and impairment charges	$ (1,671)	$ 836

Business combinations, 2022 (De

Business combinations, 2022 (Details) $ in Thousands				9 Months Ended	12 Months Ended
	Sep. 02, 2022 USD ($) MW	Apr. 04, 2022 USD ($) MW	Jan. 17, 2022 USD ($) Substation MW	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business combinations [Abstract]
Investments accounted for using equity method				$ 268,151	$ 294,581
Fair Value, Assets and Liabilities Acquisition [Abstract]
Contracted concessional assets					542,728
Cash & cash equivalents					21,012
Other current assets					61,010
Non-current Project debt					(288,352)
Other current and non-current liabilities					(87,881)
Non-controlling interests					(8,287)
Total net assets acquired at fair value					213,916
Asset acquisition - purchase price paid					(210,868)
Net result of business combinations					0
Revenue contributed by the acquisitions					163,500
Amount of loss after tax					800
Additional revenue amount					17,700
Additional amount of profit after tax					$ 3,300
Asset Acquisition [Member]
Fair Value, Assets and Liabilities Acquisition [Abstract]
Contracted concessional assets				74,969
Cash & cash equivalents				1,057
Other current assets				8,282
Non-current Project debt				(1,422)
Other current and non-current liabilities				(18,919)
Non-controlling interests				(14,300)
Total net assets acquired at fair value				49,667
Asset acquisition - purchase price paid				(49,667)
Net result of business combinations				0
Revenue contributed by the acquisitions				4,200
Amount of loss after tax				(300)
Additional revenue amount				4,800
Additional amount of profit after tax				2,100
Chile TL4 [Member]
Business combinations [Abstract]
Installed capacity | MW			63
Number of substations | Substation			2
Investments accounted for using equity method			$ 39,000	$ 8,000
Italy PV 4 [Member]
Business combinations [Abstract]
Installed capacity | MW		3.6
Investments accounted for using equity method		$ 3,700
Chile PV 3 [Member]
Business combinations [Abstract]
Installed capacity | MW	73
Investments accounted for using equity method	$ 7,700
Percentage of non-controlling interests	65%

Business combinations, 2021 (De

Business combinations, 2021 (Details) $ in Thousands										9 Months Ended	12 Months Ended
	Dec. 14, 2021 USD ($) MW	Nov. 25, 2021 USD ($) MW	Aug. 06, 2021 USD ($) Plant MW	Jul. 22, 2021 USD ($)	May 14, 2021 USD ($) MW	Apr. 07, 2021 USD ($) MW	Jan. 08, 2021 USD ($)	Jan. 07, 2021	Jan. 06, 2021 USD ($) MW	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021
Fair Value, Assets and Liabilities Acquisition [Abstract]
Contracted concessional assets											$ 542,728
Deferred tax asset											4,410
Other non-current assets											12,967
Cash & cash equivalents											21,012
Other current assets											61,010
Non-current project debt											(288,352)
Current project debt											(38,781)
Deferred tax liabilities											(4,910)
Other current and non-current liabilities											(87,881)
Non-controlling interests											(8,287)
Total net assets acquired at fair value											213,916
Asset acquisition - purchase price paid											(210,868)
Fair value of previously held 15% stake in Rioglass											(3,048)
Net result of business combinations											0
Revenue contributed by the acquisitions											163,500
Amount of profit after tax											800
Additional revenue amount											17,700
Additional amount of profit after tax											$ 3,300
Chile PV2 [Member] | Renewable Energy [Member]
Business combinations [Abstract]
Gross capacity | MW									40
Payment to acquire equity investment									$ 5,000
Percentage of non-controlling interests									65%
Asset Acquisition [Member]
Fair Value, Assets and Liabilities Acquisition [Abstract]
Contracted concessional assets										$ 74,969
Cash & cash equivalents										1,057
Other current assets										8,282
Non-current project debt										(1,422)
Other current and non-current liabilities										(18,919)
Non-controlling interests										(14,300)
Total net assets acquired at fair value										49,667
Asset acquisition - purchase price paid										(49,667)
Net result of business combinations										0
Revenue contributed by the acquisitions										4,200
Amount of profit after tax										(300)
Additional revenue amount										4,800
Additional amount of profit after tax										$ 2,100
Rioglass [Member]
Business combinations [Abstract]
Percentage of interest acquired							42.50%				85%	42.50%
Ownership interest							57.50%	15%
Acquisition, purchase price paid				$ 4,800			$ 8,600
Additional consideration paid							$ 3,700
Coso [Member]
Business combinations [Abstract]
Gross capacity | MW						135
Payment to acquire equity investment						$ 130,000
Fair Value, Assets and Liabilities Acquisition [Abstract]
Contracted concessional assets											$ 383,153
Deferred tax asset											0
Other non-current assets											11,024
Cash & cash equivalents											6,363
Other current assets											14,378
Non-current project debt											(248,544)
Current project debt											(13,415)
Deferred tax liabilities											0
Other current and non-current liabilities											(22,959)
Non-controlling interests											0
Total net assets acquired at fair value											130,000
Asset acquisition - purchase price paid											(130,000)
Fair value of previously held 15% stake in Rioglass											0
Net result of business combinations											0
Calgary District Heating Center [Member]
Business combinations [Abstract]
Gross capacity | MW					55
Payment to acquire equity investment					$ 22,900
Italy PV 1 and 2 [Member]
Business combinations [Abstract]
Number of solar plants acquired | Plant			2
Gross capacity | MW			3.7
Payment to acquire equity investment			$ 9,000
La Sierpe [Member]
Business combinations [Abstract]
Gross capacity | MW		20
Payment to acquire equity investment		$ 23,500
Italy PV 3 [Member]
Business combinations [Abstract]
Gross capacity | MW	2.5
Payment to acquire equity investment	$ 4,000
Other [Member]
Fair Value, Assets and Liabilities Acquisition [Abstract]
Contracted concessional assets											159,575
Deferred tax asset											4,410
Other non-current assets											1,943
Cash & cash equivalents											14,649
Other current assets											46,632
Non-current project debt											(39,808)
Current project debt											(25,366)
Deferred tax liabilities											(4,910)
Other current and non-current liabilities											(64,922)
Non-controlling interests											(8,287)
Total net assets acquired at fair value											83,916
Asset acquisition - purchase price paid											(80,868)
Fair value of previously held 15% stake in Rioglass											(3,048)
Net result of business combinations											$ 0

Contracted concessional asset_2

Contracted concessional assets (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Contracted Concessional Assets [Abstract]
Contracted concessional assets	$ 7,338,449		$ 8,021,568
Impairment provision based on expected credit losses on contracted concessional financial assets	27,000	$ (24,000)
Solana [Member]
Contracted Concessional Assets [Abstract]
Impairment loss on contracted concessional financial assets	41,000		43,000
Recoverable amount of contracted concessional financial assets value in use	$ 881,000		943,000
Assumed percentage decrease in generation	5%
Assumed basis point increase in discount rate	0.50%
Additional impairment loss with increase in discount rate	$ 59,000
Additional impairment loss with increase in discount rate	$ 33,000
Solana [Member] | Bottom of Range [Member]
Contracted Concessional Assets [Abstract]
Discount rate	4.60%
Solana [Member] | Top of Range [Member]
Contracted Concessional Assets [Abstract]
Discount rate	6.30%
Financial assets under IFRIC 12 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	$ 739,084		811,636
Financial assets under IFRS 16 lessor [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	2,808		2,843
Intangible assets under IFRIC 12 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	5,739,251		6,433,194
Intangible assets under IFRS 16 lessee [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	69,871		68,713
Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	787,435		705,182
Cost [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	10,492,732		11,019,135
Cost [Member] | Financial assets under IFRIC 12 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	829,083		874,525
Cost [Member] | Financial assets under IFRS 16 lessor [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	2,808		2,843
Cost [Member] | Intangible assets under IFRIC 12 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	8,622,516		9,202,539
Cost [Member] | Intangible assets under IFRS 16 lessee [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	85,932		82,818
Cost [Member] | Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	952,393		856,410
Amortization and Impairment [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	(3,154,283)		(2,997,567)
Amortization and Impairment [Member] | Financial assets under IFRIC 12 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	(89,999)		(62,889)
Amortization and Impairment [Member] | Financial assets under IFRS 16 lessor [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	0		0
Amortization and Impairment [Member] | Intangible assets under IFRIC 12 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	(2,883,265)		(2,769,345)
Amortization and Impairment [Member] | Intangible assets under IFRS 16 lessee [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	(16,061)		(14,105)
Amortization and Impairment [Member] | Property, plant and equipment under IAS 16 and other intangible assets under IAS 38 [Member]
Contracted Concessional Assets [Abstract]
Contracted concessional assets	$ (164,958)		$ (151,228)

Investments carried under the_3

Investments carried under the equity method (Details) $ in Thousands	1 Months Ended	9 Months Ended
	Jun. 30, 2021 MW	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Investments in associates [Abstract]
Investment under the equity method		$ 268,151		$ 294,581
Share of profit of associates carried under the equity method		$ 20,668	$ 4,245
Geida Tlemcen, S.L. [Member]
Investments in associates [Abstract]
Ownership interest		50%
Windlectric Inc. [Member]
Investments in associates [Abstract]
Ownership interest		100%
Arroyo Netherlands II B.V [Member]
Investments in associates [Abstract]
Ownership interest		30%
Ownership interest		100%
AYES Canada [Member]
Investments in associates [Abstract]
Ownership interest		30%
AYES Canada [Member] | Amherst Island [Member]
Investments in associates [Abstract]
Dividend distribution		$ 14,900
2007 Vento II, LLC [Member]
Investments in associates [Abstract]
Investment under the equity method		185,418		195,952
Ownership interest	49%
Gross capacity | MW	596
2007 Vento II, LLC [Member] | Amherst Island [Member]
Investments in associates [Abstract]
Dividend distribution		26,000
Share of profit of associates carried under the equity method		17,200
Windlectric Inc. [Member]
Investments in associates [Abstract]
Investment under the equity method		23,365		41,911
Myah Bahr Honaine, S.P.A. [Member]
Investments in associates [Abstract]
Investment under the equity method		$ 43,154		38,922
Myah Bahr Honaine, S.P.A. [Member] | Geida Tlemcen, S.L. [Member]
Investments in associates [Abstract]
Ownership interest		51%
Pemcorp SAPI de CV [Member]
Investments in associates [Abstract]
Investment under the equity method		$ 13,841		15,358
Pectonex, R.F. Proprietary Limited [Member]
Investments in associates [Abstract]
Investment under the equity method		1,430		1,495
Evacuacion Valdecaballeros, S.L. [Member]
Investments in associates [Abstract]
Investment under the equity method		918		923
Liberty Infraestructuras S.L. [Member]
Investments in associates [Abstract]
Investment under the equity method		$ 25		$ 20

Financial investments, Non-curr

Financial investments, Non-current and current financial investments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financial investments [Abstract]
Fair Value through OCI (Investment in Ten West link)	$ 15,959	$ 14,459
Derivative assets (Note 9)	99,044	10,807
Other receivable accounts at amortized cost	71,872	71,342
Total non-current financial investments	186,875	96,608
Contracted concessional financial assets	184,392	188,912
Derivative assets (Note 9)	5,046	2,153
Other receivable accounts at amortized cost	631	16,314
Total current financial investments	$ 190,069	$ 207,379

Financial investments, Restruct

Financial investments, Restructuring agreement of Abengoa (Details) - Ten West Link [Member]	9 Months Ended
	Sep. 30, 2022 mi
Restructuring Agreement [Abstract]
Percentage of interest acquired	12.50%
Length of transmission lines	114

Derivative financial instrume_3

Derivative financial instruments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Breakdown of fair value amount of derivative financial instruments [Abstract]
Loss on cash flow hedges	$ 31,473	$ 44,643
Cash Flow Hedge [Member]
Breakdown of fair value amount of derivative financial instruments [Abstract]
Assets	104,090		$ 12,960
Liabilities	$ 50,536		223,453
Interest Rate Derivatives [Member] | Euros [Member]
Breakdown of fair value amount of derivative financial instruments [Abstract]
Percent of notional amount of debt hedged in next 12 months	100%
Percentage of notional amount of debt hedged in year two	75%
Interest Rate Derivatives [Member] | Cash Flow Hedge [Member]
Breakdown of fair value amount of derivative financial instruments [Abstract]
Assets	$ 97,044		9,550
Liabilities	40,645		206,763
Loss on cash flow hedges	(31,500)	$ (44,700)
After-tax result accumulated in equity	333,739		171,272
Foreign Exchange Derivative Instruments [Member] | Cash Flow Hedge [Member]
Breakdown of fair value amount of derivative financial instruments [Abstract]
Assets	7,046		3,410
Liabilities	0		0
Notes Conversion Option [Member] | Cash Flow Hedge [Member]
Breakdown of fair value amount of derivative financial instruments [Abstract]
Assets	0		0
Liabilities	$ 9,891		$ 16,690

Related parties (Details)

Related parties (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Details of Balances [Abstract]
Credit receivables (current)		$ 3,695		$ 19,387
Credit receivables (non-current)		17,006		15,768
Total receivables from related parties		20,701		35,155
Credit payables (current)		8,053		9,494
Credit payables (non-current)		0		5
Total payables to related parties		8,053		9,499
Transactions with Related Party [Abstract]
Financial income		3,367	$ 1,848
Financial expenses		(244,305)	(277,000)
Arroyo Netherlands II B.V [Member]
Details of Balances [Abstract]
Proceeds from related party related to current credit receivables	$ 8,200
Amherst Island Partnership [Member]
Details of Balances [Abstract]
Dividend receivable				6,300
Algonquin [Member]
Details of Balances [Abstract]
Credit payables (current)		2,300		6,100
Algerian Energy Company, SPA [Member]
Details of Balances [Abstract]
Credit payables (current)		5,100		0
Sacyr Agua S.L. [Member]
Details of Balances [Abstract]
Credit payables (current)		5,100		$ 0
Subsidiaries [Member]
Transactions with Related Party [Abstract]
Financial income		996	1,547
Financial expenses		$ (143)	$ (89)

Trade and other receivables (De

Trade and other receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Trade and other receivables [Abstract]
Trade receivables	$ 158,611	$ 227,343
Tax receivables	39,700	59,350
Prepayments	24,054	9,342
Other accounts receivable	8,351	11,108
Trade and other receivables	$ 230,716	$ 307,143

Equity (Details)

Equity (Details)						9 Months Ended		12 Months Ended
	Sep. 15, 2022 USD ($) $ / shares	Jun. 15, 2022 USD ($) $ / shares	Mar. 25, 2022 USD ($) $ / shares	Jan. 07, 2021 USD ($) shares	Dec. 11, 2020 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) Vote $ / shares shares	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) $ / shares shares	Feb. 28, 2022 USD ($)
Equity [Abstract]
Share capital						$ 11,605,512		$ 11,240,000
Ordinary shares subscribed and disbursed (in shares) | shares						116,055,126
Nominal value per share (in dollars per share) | $ / shares						$ 0.1
Voting right per share | Vote						1
Liability reclassified to equity						$ 9,000,000
Reduction of share premium							$ 0
Treasury shares held (in shares) | shares						0		0
Number of treasury share transactions in the period (in shares) | shares						0		0
Fourth Quarter [Member]
Equity [Abstract]
Dividend declaration date						Feb. 25, 2022
Dividend paid date						Mar. 25, 2022
Dividends paid (in dollars per share) | $ / shares			$ 0.44
Dividends paid			$ 49,700,000
First Quarter [Member]
Equity [Abstract]
Dividend declaration date						May 05, 2022
Dividend paid date						Jun. 15, 2022
Dividends paid (in dollars per share) | $ / shares		$ 0.44
Dividends paid		$ 50,300,000
Second Quarter [Member]
Equity [Abstract]
Dividend declaration date						Aug. 02, 2022
Dividend paid date						Sep. 15, 2022
Dividends paid (in dollars per share) | $ / shares	$ 0.445
Dividends paid	$ 51,500,000
Long-term Incentive Plans [Member]
Equity [Abstract]
Shares issued (in shares) | shares						228,560		141,482
Algerian Energy Company, SPA [Member]
Equity [Abstract]
Dividends paid to non-controlling interests						$ 5,300,000	6,700,000
Algonquin [Member]
Equity [Abstract]
Ownership interest						42.20%
Proportion of voting rights held by non-controlling interests						41.50%
Net proceeds				$ 131,000,000
Dividends paid to non-controlling interests						$ 14,600,000	10,900,000
Public Offering [Member]
Equity [Abstract]
Nominal value per share (in dollars per share) | $ / shares					$ 33
Shares issued (in shares) | shares					5,069,200
Gross proceeds					$ 167,000,000
Net proceeds					$ 161,000,000
Over-Allotment Option [Member]
Equity [Abstract]
Shares issued (in shares) | shares					661,200
Private Placement [Member] | Algonquin [Member]
Equity [Abstract]
Ownership interest				44.20%
Shares issued (in shares) | shares				4,020,860
Gross proceeds				$ 133,000,000
At the Market Program [Member]
Equity [Abstract]
Nominal value per share (in dollars per share) | $ / shares						$ 33.57		$ 38.43
Shares issued (in shares) | shares						3,423,593		1,613,079
Net proceeds						$ 114,000,000		$ 61,000,000
At the Market Program [Member] | Top of range [member]
Equity [Abstract]
Amount of offering						$ 150,000,000			$ 150,000,000
Share Premium [Member]
Equity [Abstract]
Reduction of share premium							$ (200,000,000)

Corporate debt, Breakdown of co

Corporate debt, Breakdown of corporate debt (Details) $ in Thousands, € in Millions	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 04, 2020 USD ($)	Dec. 04, 2020 EUR (€)
Corporate debt [Abstract]
Non-current	$ 934,795	$ 995,190
Current	20,745	27,881
Total Corporate Debt	$ 955,540	$ 1,023,071	$ 4,900	€ 5

Corporate debt, Details of corp

Corporate debt, Details of corporate debt (Details) $ / shares in Units, $ in Thousands, € in Millions

1 Months Ended

9 Months Ended

12 Months Ended

Apr. 30, 2019 USD ($)

Sep. 30, 2022 USD ($)

Sep. 30, 2021 USD ($)

Dec. 31, 2021 USD ($)

Sep. 30, 2022 EUR (€)

Jan. 31, 2022 USD ($)

Jan. 31, 2022 EUR (€)

Dec. 31, 2021 EUR (€)

May 18, 2021 USD ($)

Dec. 04, 2020 USD ($)

Dec. 04, 2020 EUR (€)

Jul. 29, 2020 USD ($)

Jul. 17, 2020 USD ($) $ / shares shares

Jul. 08, 2020 USD ($)

Jul. 08, 2020 EUR (€)

Mar. 31, 2020 USD ($)

Mar. 31, 2020 EUR (€)

Dec. 31, 2019 USD ($)

Oct. 08, 2019 USD ($)

Oct. 08, 2019 EUR (€)

Apr. 30, 2019 EUR (€)

May 10, 2018 USD ($)

Jul. 20, 2017 USD ($)

Jul. 20, 2017 EUR (€)

Corporate debt [Abstract]

Fixed interest rate

2.50%

2.50%

Corporate debt

$ 955,540

$ 1,023,071

$ 4,900

€ 5

Amount drawn

$ 57,503

$ 409,023

Maturity date

December 4, 2025

2017 Credit Facility [Member]

Corporate debt [Abstract]

Corporate debt

$ 8,828

8,204

Amount drawn

$ 8,800

$ 8,200

Maturity date

July 1, 2024

July 1, 2023

2017 Credit Facility [Member] | Top of Range [Member]

Corporate debt [Abstract]

Credit facility amount

$ 9,800

€ 10

2017 Credit Facility [Member] | EURIBOR [Member]

Corporate debt [Abstract]

Adjustment to interest rate

2%

2%

2017 Credit Facility [Member] | EURIBOR [Member] | Bottom of Range [Member]

Corporate debt [Abstract]

Adjustment to interest rate

0%

0%

2017 Credit Facility [Member] | LIBOR [Member]

Corporate debt [Abstract]

Adjustment to interest rate

2%

2%

2017 Credit Facility [Member] | LIBOR [Member] | Bottom of Range [Member]

Corporate debt [Abstract]

Adjustment to interest rate

0%

0%

Revolving Credit Facility [Member]

Corporate debt [Abstract]

Credit facility amount

$ 450,000

$ 425,000

$ 215,000

Credit facility amount available

$ 440,000

$ 440,000

Revolving Credit Facility [Member] | Maturity December 31, 2024 [Member]

Corporate debt [Abstract]

Maturity date

December 31, 2024

Eurodollar Rate Loans [Member] | Bottom of Range [Member]

Corporate debt [Abstract]

Adjustment to interest rate

1.60%

Eurodollar Rate Loans [Member] | Top of Range [Member]

Corporate debt [Abstract]

Adjustment to interest rate

2.25%

Eurodollar Rate Loans [Member] | SOFR [Member]

Corporate debt [Abstract]

Adjustment to interest rate

0.10%

Base Rate Loans [Member] | Bottom of Range [Member]

Corporate debt [Abstract]

Adjustment to interest rate

0.60%

Base Rate Loans [Member] | Top of Range [Member]

Corporate debt [Abstract]

Adjustment to interest rate

1%

Base Rate Loans [Member] | Federal Funds Rate [Member]

Corporate debt [Abstract]

Adjustment to interest rate

0.50%

Base Rate Loans [Member] | SOFR [Member]

Corporate debt [Abstract]

Adjustment to interest rate

1%

Letters of Credit [Member]

Corporate debt [Abstract]

Credit facility amount

$ 100,000

Amount drawn

$ 10,000

10,000

Note Issuance Facility 2019 [Member]

Corporate debt [Abstract]

Fixed interest rate

4.24%

4.24%

Credit facility amount

$ 263,000

€ 268

Maturity date

April 30, 2025

Note Issuance Facility 2019 [Member] | EURIBOR [Member]

Corporate debt [Abstract]

Variable interest period

3 months

Adjustment to interest rate

4.50%

4.50%

Commercial Paper [Member]

Corporate debt [Abstract]

Corporate debt

$ 13,112

24,422

Short term notes issued amount

$ 13,100

22,400

€ 13.4

€ 21.5

$ 49,000

€ 50

Term of short term notes

2 years

Percentage average cost of issued short term notes

0.71%

2020 Green Private Placement [Member]

Corporate debt [Abstract]

Principal amount

$ 284,000

€ 290

Corporate debt

$ 282,408

327,440

Adjustment to interest rate

1.96%

1.96%

Maturity date

June 2026

Note Issuance Facility 2020 [Member]

Corporate debt [Abstract]

Fixed interest rate

5.25%

5.25%

Credit facility amount

$ 137,000

€ 140

Corporate debt

$ 134,778

155,814

Maturity period

7 years

Green Exchangeable Notes Due 2025 [Member]

Corporate debt [Abstract]

Fixed interest rate

4%

Corporate debt

$ 107,287

106,410

Maturity date

July 15, 2025

Principal amount of notes issued

$ 15,000

$ 100,000

Exchange rate of notes (in shares) | shares

29.107

Principal amount of notes for exchange rate

$ 1,000

Initial exchange price of notes (in dollars per share) | $ / shares

$ 34.36

Amount of transaction date of fair value fair value are accounted for through the profit and loss statement

$ 10,000

BBVA Loan [Member]

Corporate debt [Abstract]

Fixed interest rate

1.90%

1.90%

Corporate debt

$ 4,900

€ 5

Maturity date

January 31, 2026

Green Senior Notes Due 2028 [Member]

Corporate debt [Abstract]

Principal amount

$ 400,000

Fixed interest rate

4.125%

Corporate debt

$ 399,920

$ 395,118

Maturity date

May 15, 2028

Corporate debt, Repayment sched

Corporate debt, Repayment schedule (Details) $ in Thousands, € in Millions	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 04, 2020 USD ($)	Dec. 04, 2020 EUR (€)
Repayment schedule [Abstract]
Corporate debt	$ 955,540	$ 1,023,071	$ 4,900	€ 5
Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	17,398
Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	3,347
Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	1,634
2022 [Member]
Repayment schedule [Abstract]
Corporate debt		27,881
2023 [Member]
Repayment schedule [Abstract]
Corporate debt		10,094
2024 [Member]
Repayment schedule [Abstract]
Corporate debt	11,681	1,895
2025 [Member]
Repayment schedule [Abstract]
Corporate debt	109,189	106,151
2026 [Member]
Repayment schedule [Abstract]
Corporate debt	282,680	327,081
Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	529,611	549,969
2017 Credit Facility [Member]
Repayment schedule [Abstract]
Corporate debt	8,828	8,204
2017 Credit Facility [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	6
2017 Credit Facility [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2017 Credit Facility [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2017 Credit Facility [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		5
2017 Credit Facility [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		8,199
2017 Credit Facility [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	8,822	0
2017 Credit Facility [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2017 Credit Facility [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2017 Credit Facility [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Commercial Paper [Member]
Repayment schedule [Abstract]
Corporate debt	13,112	24,422
Commercial Paper [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	10,967
Commercial Paper [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	2,145
Commercial Paper [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
Commercial Paper [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		24,422
Commercial Paper [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		0
Commercial Paper [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Commercial Paper [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Commercial Paper [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Commercial Paper [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Green Private Placement [Member]
Repayment schedule [Abstract]
Corporate debt	282,408	327,440
2020 Green Private Placement [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	356
2020 Green Private Placement [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2020 Green Private Placement [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2020 Green Private Placement [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		359
2020 Green Private Placement [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		0
2020 Green Private Placement [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Green Private Placement [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Green Private Placement [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	282,052	327,081
2020 Green Private Placement [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Note Issuance Facility [Member]
Repayment schedule [Abstract]
Corporate debt	134,778	155,814
2020 Note Issuance Facility [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2020 Note Issuance Facility [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2020 Note Issuance Facility [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
2020 Note Issuance Facility [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		0
2020 Note Issuance Facility [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		0
2020 Note Issuance Facility [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Note Issuance Facility [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Note Issuance Facility [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
2020 Note Issuance Facility [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	134,778	155,814
Green Exchangeable Notes [Member]
Repayment schedule [Abstract]
Corporate debt	107,287	106,410
Green Exchangeable Notes [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	957
Green Exchangeable Notes [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
Green Exchangeable Notes [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
Green Exchangeable Notes [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		2,121
Green Exchangeable Notes [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		0
Green Exchangeable Notes [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Green Exchangeable Notes [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	106,330	104,289
Green Exchangeable Notes [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Green Exchangeable Notes [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Green Senior Notes [Member]
Repayment schedule [Abstract]
Corporate debt	399,920	395,118
Green Senior Notes [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	5,087
Green Senior Notes [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
Green Senior Notes [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	0
Green Senior Notes [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		963
Green Senior Notes [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		0
Green Senior Notes [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Green Senior Notes [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Green Senior Notes [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	0	0
Green Senior Notes [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	394,833	394,155
Other Bank Loans [Member]
Repayment schedule [Abstract]
Corporate debt	9,207	5,663
Other Bank Loans [Member] | Remainder of 2022 [Member]
Repayment schedule [Abstract]
Corporate debt	25
Other Bank Loans [Member] | Between January and September 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	1,202
Other Bank Loans [Member] | Between October and December 2023 [Member]
Repayment schedule [Abstract]
Corporate debt	1,634
Other Bank Loans [Member] | 2022 [Member]
Repayment schedule [Abstract]
Corporate debt		11
Other Bank Loans [Member] | 2023 [Member]
Repayment schedule [Abstract]
Corporate debt		1,895
Other Bank Loans [Member] | 2024 [Member]
Repayment schedule [Abstract]
Corporate debt	2,859	1,895
Other Bank Loans [Member] | 2025 [Member]
Repayment schedule [Abstract]
Corporate debt	2,859	1,862
Other Bank Loans [Member] | 2026 [Member]
Repayment schedule [Abstract]
Corporate debt	628	0
Other Bank Loans [Member] | Subsequent Years [Member]
Repayment schedule [Abstract]
Corporate debt	$ 0	$ 0

Project debt, Details of projec

Project debt, Details of project debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Project debt [Abstract]
Cash held to satisfy non-recourse debt agreements	$ 231,000	$ 254,000
Non-current	4,249,902	4,387,674
Current	372,038	648,519
Total Project debt	$ 4,621,940	5,036,193
Kaxu [Member]
Project debt [Abstract]
Current		$ 314,000

Project debt, Repayment schedul

Project debt, Repayment schedule (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Repayment schedule [Abstract]
Project debt	$ 4,621,940	$ 5,036,193
Remainder of 2022 [Member]
Repayment schedule [Abstract]
Interest payment	52,074
Nominal repayment	170,195
Between January and September 2023 [Member]
Repayment schedule [Abstract]
Project debt	149,769
Between October and December 2023 [Member]
Repayment schedule [Abstract]
Project debt	174,980
2022 [Member]
Repayment schedule [Abstract]
Interest payment		18,017
Nominal repayment		317,388
2023 [Member]
Repayment schedule [Abstract]
Project debt		355,956
2024 [Member]
Repayment schedule [Abstract]
Project debt	341,020	369,528
2025 [Member]
Repayment schedule [Abstract]
Project debt	453,890	498,712
2026 [Member]
Repayment schedule [Abstract]
Project debt	381,112	411,514
Subsequent Years [Member]
Repayment schedule [Abstract]
Project debt	$ 2,898,900	$ 3,065,078

Grants and other liabilities (D

Grants and other liabilities (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) Type	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Grants and other liabilities [Abstract]
Grants	$ 926,085		$ 970,557
Other Liabilities	315,974		293,187
Grants and other non-current liabilities	$ 1,242,059		1,263,744
Number of grant types | Type	2
Income from grants	$ 44,364	$ 44,449
Solana and Mojave [Member]
Grants and other liabilities [Abstract]
Income from grants	43,900	$ 44,000
Solar Plants in Spain [Member]
Grants and other liabilities [Abstract]
Provisions for high risk market prices	86,000		75,000
U.S. Department of Treasury [Member]
Grants and other liabilities [Abstract]
Grants	618,000		642,000
Federal Financing Bank [Member]
Grants and other liabilities [Abstract]
Grants	306,000		326,000
Liberty Interactive Corporation [Member]
Grants and other liabilities [Abstract]
Finance lease liabilities	59,000		59,000
Dismantling provisions	$ 129,000		$ 125,000

Trade payables and other curr_3

Trade payables and other current liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Trade payables and other current liabilities [Abstract]
Trade accounts payable	$ 87,054	$ 79,052
Down payments from clients	6,286	542
Other accounts payable	42,354	34,313
Total	$ 135,694	$ 113,907

Income Tax (Details)

Income Tax (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Income Tax [Abstract]
Income tax expense	$ 12,975	$ 42,390
Profit before income tax	$ 14,780	$ 35,944

Financial expense, net (Details

Financial expense, net (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Financial income [Abstract]
Interest income from loans and credits	$ 1,143	$ 1,549
Interest rate gains on derivatives: cash flow hedges	2,224	299
Total	3,367	1,848
Financial expense [Abstract]
Interest on loans and notes	(211,484)	(232,065)
Interest rates losses derivatives: cash flow hedges	(32,821)	(44,935)
Total	(244,305)	(277,000)
Other financial income / (expenses) [Abstract]
Other financial income	18,790	35,355
Other financial losses	(16,582)	(13,671)
Total	2,208	21,684
Kaxu [Member]
Other financial income / (expenses) [Abstract]
Income for non-monetary change to fair value of derivatives	6,200	5,600
Kaxu [Member] | Notes Conversion Option [Member]
Other financial income / (expenses) [Abstract]
Income for non-monetary change to fair value of derivatives	$ 6,800	$ 13,900

Other operating income and ex_3

Other operating income and expenses (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Other operating income [Abstract]
Grants (Note 16)	$ 44,364	$ 44,449
Insurance proceeds and other	10,496	13,148
Total	54,860	57,597
Other operating expenses [Abstract]
Raw materials and consumables used	(13,710)	(64,756)
Leases and fees	(8,571)	(6,451)
Operation and maintenance	(106,118)	(117,750)
Independent professional services	(28,096)	(27,297)
Supplies	(45,678)	(25,270)
Insurance	(34,446)	(33,943)
Levies and duties	(13,596)	(25,948)
Other expenses	(11,220)	(19,458)
Total	$ (261,435)	$ (320,873)

Earnings per share (Details)

Earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Earnings per share [Abstract]
Potential issuance of shares on settlement of Green Exchangeable Notes (in shares)	3,347,305	3,347,305
Potential issuance of subscribed shares (in shares)	596,681	510,169
Loss attributable to Atlantica	$ (9,473)	$ (18,166)
Average number of ordinary shares outstanding - basic (in shares)	114,236,000	110,749,000
Average number of ordinary shares outstanding - diluted (in shares)	118,197,000	114,156,000
Earnings per share for the period - basic (in dollars per share)	$ (0.08)	$ (0.16)
Earnings per share for the period - diluted (in dollars per share)	$ (0.08)	$ (0.16)

Subsequent events (Details)

Subsequent events (Details) € in Millions			9 Months Ended
	Nov. 08, 2022 $ / shares	Oct. 20, 2022 EUR (€)	Sep. 30, 2022	Dec. 04, 2020
Refinanced Project Debt [Abstract]
Maturity date			December 4, 2025
Interest rate				2.50%
Subsequent Events [Member]
Refinanced Project Debt [Abstract]
Project debt financed amount | €		€ 205
Maturity date		2037
Dividends Approved [Abstract]
Dividend declaration date	Nov. 08, 2022
Dividend approved (in dollars per share) | $ / shares	$ 0.445
Dividend approved expected date to be paid	Dec. 15, 2022
Subsequent Events [Member] | EURIBOR [Member]
Refinanced Project Debt [Abstract]
Maturity date		2025
Variable interest period		6 months
Percentage of exposure hedged		19%
Interest rate		1%
Subsequent Events [Member] | EURIBOR [Member] | Swap [member]
Refinanced Project Debt [Abstract]
Percentage of exposure hedged		71%
Interest rate		2.36%
Subsequent Events [Member] | EURIBOR [Member] | 2022-2027 [Member]
Refinanced Project Debt [Abstract]
Interest accrue rate		1.50%
Subsequent Events [Member] | EURIBOR [Member] | 2027-2032 [Member]
Refinanced Project Debt [Abstract]
Interest accrue rate		1.60%
Subsequent Events [Member] | EURIBOR [Member] | 2032-2037 [Member]
Refinanced Project Debt [Abstract]
Interest accrue rate		1.70%