Exhibit 8.1
Subsidiaries of Atlantica Sustainable Infrastructure plc

Subsidiary |  | Jurisdiction of Incorporation or Organization
ACT Energy México, S. de R.L. de C.V. |  | Mexico
ACT Holdings, S.A. de C.V. |  | Mexico
AC Renovables Sol 1 S.A.S. E.S |  | -
Agrisun, Srl. |  | Italy
Aguas de Skikda S.P.A. |  | Algeria
Alcala Sviluppo Solare S.r.l |  | Italy
Arizona Solar One, LLC. |  | United States
ASHUSA Inc. |  | United States
ASI Operations LLC |  | United States
ASO Holdings Company, LLC. |  | United States
ASUSHI, Inc. |  | United States
Atlantica Chile SpA |  | Chile
Atlantica Colombia S.A.S. |  | Colombia
Atlantica DCR, LLC |  | United States
Atlantica Corporate Resources, S.L |  | Spain
Atlantica Energía Sostenible España S.L. |  | Spain
Atlantica Energia Sostenibile Italia, Srl. |  | Italy
Atlantica Hidro Colombia SPA |  | Colombia
Atlantica Holdings USA LLC |  | United States
Atlantica Infraestructura Sostenible, S.L.U |  | Spain
Atlantica Investment Ltd. |  | United Kingdom
Atlantica Newco Limited |  | United Kingdom
Atlantica North America, LLC |  | United States
Atlantica Perú, S.A. |  | Peru
Atlantica Transmisión Sur, S.A. |  | Peru
Atlantica Renewable Power Mexico de R.L. de C.V |  | México
Atlantica Sustainable Infrastructure Jersey, Ltd |  | United Kingdom
Atlantica Solutions LLC |  | United States
Atlantica South Africa (Pty) Ltd |  | South Africa
Atlantica South Africa Operations Proprietary Limited Ltd |  | South Africa
Atlantica Yield Energy Solutions Canada Inc. |  | Canada
Atlantica y Quartux Almacenamiento de Energía S.A.P.I. de C.V. |  | Mexico
ASI Vento LLC |  | United States
ATN, S.A. |  | Peru
ATN 4, S.A |  | Peru
ATN 2, S.A. |  | Peru
AYES International UK Ltd |  | United Kingdom
AY Holding Uruguay, S.A. |  | Uruguay
Banitod, S.A. |  | Uruguay
Befesa Agua Tenes |  | Spain
BPC US Wind Corporation, Inc. |  | United States
Cadonal, S.A. |  | Uruguay
Calgary District Heating, Inc |  | Canada
Carpio Solar Inversiones, S.A. |  | Spain
CGP Holding Finance, LLC |  | United States
Chile PV I |  | Chile
Chile PV II |  | Chile
Chile PV III |  | Chile
Coropuna Transmisión, S.A |  | Peru
Day Ahead Solar LLC |  | United States
Ecija Solar Inversiones, S.A. |  | Spain
Energía Renovable Dalia 1 SA de CV |  | Mexico
Energía Renovable Dalia 2 SA de CV |  | Mexico

Energía Renovable Dalia 3 SA de CV |  | Mexico
Estrellada, S.A. |  | Uruguay
Extremadura Equity Investments Sárl. |  | Luxembourg
Fotovoltaica Solar Sevilla, S.A. |  | Spain
Geida Skikda, S.L. |  | Spain
Global Solar Participations Sarl |  | Luxembourg
Helioenergy Electricidad Uno, S.A. |  | Spain
Helioenergy Electricidad Dos, S.A. |  | Spain
Helios I Hyperion Energy Investments, S.A. |  | Spain
Helios II Hyperion Energy Investments, S.A. |  | Spain
Helios 2, S.R.L |  | Italy
Hidrocañete S.A. |  | Peru
Hunucma Wind Power S.A. de C.V |  | Mexico
Hypesol Energy Holding, S.L. |  | Spain
Hypesol Solar Inversiones, S.A |  | Spain
Kaxu Solar One (Pty) Ltd. |  | South Africa
Logrosán Equity Investments Sárl. |  | Luxembourg
Logrosán Solar Inversiones, S.A. |  | Spain
Logrosán Solar Inversiones Dos, S.L. |  | Spain
Mojave Solar Holdings, LLC. |  | United States
Mojave Solar LLC. |  | United States
Montesejo Piano, Srl. |  | Italy
Mordor ES1 LLC |  | United States
Mordor ES2 LLC |  | United States
Nesyla, S.A |  | Uruguay
Overnight Solar LLC |  | United States
Palmatir S.A. |  | Uruguay
Palmucho, S.A. |  | Chile
PA Renovables Sol 1 S.A.S. |  | -
Parque Fotovoltaico La Tolua S.A.S |  | Colombia
Parque Solar Tierra Linda, S.A.S |  | Colombia
Parque Fotovoltaico La Sierpe S.A.S |  | Colombia
Re Sole, Srl. |  | Italy
Rioglass Solar Holding, S.A. |  | Spain
Rilados S.A |  | Uruguay
RRHH Servicios Corporativos, S. de R.L. de C.V. |  | Mexico
Sanlucar Solar, S.A. |  | Spain
Solaben Electricidad Uno S.A. |  | Spain
SJ Renovables Sun 1 S.A.S. |  | -
SJ Renovables Wind 1 S.A.S. |  | -
Solaben Electricidad Dos S.A. |  | Spain
Solaben Electricidad Tres S.A. |  | Spain
Solaben Electricidad Seis S.A. |  | Spain
Solaben Luxembourg S.A. |  | Luxembourg
Solacor Electricidad Uno, S.A. |  | Spain
Solacor Electricidad Dos, S.A. |  | Spain
Solar Processes, S.A. |  | Spain
Solnova Solar Inversiones, S.A. |  | Spain
Solnova Electricidad, S.A. |  | Spain
Solnova Electricidad Tres, S.A. |  | Spain
Solnova Electricidad Cuatro, S.A. |  | Spain
Tenes Lilmiyah, S.P.A |  | Algeria
Transmisora Mejillones, S.A. |  | Chile
Transmisora Melipeuco S.A. |  | Chile
Transmisora Baquedano, S.A. |  | Chile
VO Renovables SOL 1 S.A.S. |  | -
White Rock Insurance (Europe) PCC Limited |  | Malta