O'Farrell‘s public law and economic regulation department advises on the complex regulatory and market participation landscape which shapes the Argentine electricity industry. The team counsels automotive and telecoms industry clients on the legislative shift towards sustainable energy, including mandatory renewable power supply agreements aimed at large consumers of energy. The practitioners are highly experienced in the public procurement and tender processes relating to energy distribution and supply contracts and assists with bid requirements and the preparation of offers. Practice head and public law specialist Agustín Siboldi is well versed in regulatory compliance, while vastly experienced honorary partner Uriel F. O'Farrell assists with M&A, privatisations, and financings in the electricity and infrastructure sectors. Public law specialists Jorge Muratorio and Ana Belén Micciarelli are proficient in public procurement and contractor selection procedures relating to electricity transmission lines and other projects. The team is bolstered by senior consultant María Fortuna, who handles arbitration relating to issues such as improper terminations of EPC agreements and sanctions imposed for alleged regulatory non-compliance.
Electricity in Argentina
O'Farrell
Responsables de la pratique:
Agustín Siboldi
Les références
‘Agustín Siboldi: Seriousness, perseverance, eloquence, strength, capability, responsibility, ethics.’
‘The team stand out for their involvement in the issues and extensive regulatory knowledge of the business. We have found in them a partner for the analysis and resolution of general and specific issues, a situation that is more generic in other firms.’
‘Our account is handled by Agustín Siboldi and his team, who have been involved in discussions with government authorities regarding updates to current regulations. Great availability and prompt handling of issues.’
Principaux clients
Latinoamericana de Energía
YPF Energía Eléctrica
Pampa Energía
Transener and Transba
Parques Eólicos
Empresa de Distribución Eléctrica de Tucumán
Energía de Entre Ríos
Empresa Jujeña de Energía
Energy Consulting Services
Total Eren
Vestas
Eternum Energy
Petroperú
Ford Argentina
Ufinet
American Tower Argentina
Arcelor Mittal Acindar
Solalban Energía
Principaux dossiers
- Preparing a report outlining the mechanisms to allow Energía San Juan to overcome several difficulties that it is experiencing with the Ente Provincial Regulador de Electricidad, such as the lack of consideration of the defence presented in the face of sanctioning charges and the non-appealability of the sanctioning resolutions.
- Prepared a report for Transba and Transener on the possible alternatives to proceed with the development of infrastructure works to expand transportation capacity.
- Providing legal and regulatory advice to Central Térmica Loma de la Lata in its multimillion-dollar judicial claims against the National State for breaching the agreement aimed at incentivising the expansion of its power fire electricity plants.
Beccar Varela
Beccar Varela advises on all stages of the power chain across thermal, hydro, wind, solar, nuclear, and emerging energy sources. The team assists with regulatory, transactional, environmental, and infrastructure matters, including PPAs, promotion regimes, and public-private partnerships. Known for project finance and cross-border capabilities, the practice supports complex developments, privatisations, and international expansions. The team is led by energy specialist José Carlos Cueva, who advises clients on all power-related matters, and corporate and energy expert Ricardo Castañeda. The practice was further strengthened in July 2025 with the arrival of the multifaceted Jimena Vega Olmos, a specialist in project development, project finance and investment arbitration, from Martínez de Hoz & Rueda.
Principaux dossiers
Bomchil
Bomchil assists energy producers and investors with navigating transactions and disputes relating to the electricity field. The practice is especially dedicated to structuring and developing conventional and renewable energy projects. This includes advising on joint ventures and bid submissions and negotiating and drafting power purchase agreements and EPC contracts. It also represents clients in arbitration and litigation related to the construction of plants, delays in obtaining commercial authorisations, and the repayment of investments. The practice is led by administrative and economic regulatory specialist María Inés Corrá, who assists with the preliminary due diligence and construction of renewable energy projects, and commercial, regulatory and environmental practitioner Cristian Galansky, who advises clients on regulatory frameworks and disputes. Pablo Alliani provides support with electricity-specific M&A.
Responsables de la pratique:
María Inés Corrá; Cristian Galansky
Autres avocats clés:
Pablo Alliani
Les références
‘Bomchil’s approach to solutions is through a multi-specialist team of lawyers. They get really closely involved with the problems and try to look for efficient solutions.’
‘Each specialist that we worked with has shown complete understanding of the market and its technical issues. They support solutions for the company using their own experience and best practices achieved by solutions accomplished in similar situations.’
Principaux clients
Araucaria Energy (now SCC Power Argentina)
Enel
Buenos Aires Arena
SPI Energy
Miramar Power
Parque Eólico Loma Blanca
BTS Biogas
Coral Energía
Milkaut / Sucesores de Alfredo Williner
Principaux dossiers
- Advising Araucaria Energy (now SCC Power Argentina) on all the regulatory filings and approvals from the National Electricity Authority and the regulatory filings before CAMMESA, OPDS (the Provincial Environmental Agency), the Municipality of Pilar, and other governmental agencies, as well as in the environmental legal actions pursued against the thermoelectric plants owned by the company.
- Advising Coral Energía on its construction and operation of several photovoltaic solar parks in Argentina, as well as the reorganisation of the group to foster the expansion of its investments in the electricity market.
- Representing BTS Biogas, a leader in the design and construction of biogas renewable power plants, in two matters filed by Seeds Energy for alleged defeats in the design and construction of two Biogas plants located in Pergamino and Venado Tuerto under two EPC contracts.
Bruchou & Funes de Rioja
Recognised for its ‘excellent team’, Bruchou & Funes de Rioja is highly skilled in advising on electricity projects, from conventional energy generation to renewable energy initiatives. The team assists clients with project financing, obtaining regulatory permits, and structuring such projects through power purchase agreements. The practice is led by Ignacio Minorini Lima, who often acts as lead counsel on energy projects and associated arbitration, and Mariano Luchetti, who participates in M&A, joint ventures and project financings with a special emphasis on the electricity sector. Real estate and corporate partner Exequiel Buenaventura and Nicolás Dulce also assist with M&A transactions in the energy and infrastructure sectors, while Juan Zocca advises on energy regulations, tariffs and pricing issues. Senior associates Juan Raparo Faure and Manuel Mazza are other key names for complex regulatory matters.
Responsables de la pratique:
Mariano Luchetti; Ignacio Minorini Lima
Autres avocats clés:
Exequiel Buenaventura; Nicolás Dulce; Juan Zocca; Juan Raparo Faure; Manuel Mazza
Les références
‘An excellent team dedicated to the energy area. Mariano Luchetti and Ignacio Minorini Lima make an excellent team. Their distinctive characteristics are their practicality and commercial approach.’
‘Mariano Luchetti has great knowledge of the energy evolution of our country and the legislation. Very creative and immediate responses.’
‘The team has a leader with good experience in the sector and thorough knowledge of the regulations.’
Principaux clients
Envision
The AES Corporation
Goldwind
Equinor
Canadian Solar
Central Puerto
Albanesi
Avellaneda Cements
Pan American Energy
Scatec
Barrick Exploraciones Argentina
China Development Bank
Elawan Energy Developments
Genneia
Invenergy
America Corporation
Minera Andina del Sol
MSU Group
Newsan
Petroquímica Comodoro Rivadavia
José de San Martín Thermoelectric Plant
Dow
Ensenada de Barragan Thermoelectric Power Plant
Necochea Wind Power
Principaux dossiers
- Advised Central Puerto on acquiring strategic power thermal generation assets (Central Costanera and Central Dock Sud) owned by Enel Group, which will turn Central Puerto into a major private power generator in Argentina.
- Acting for the AES Corporation in an ICSID claim against the Argentine Republic related to AES’s investment in several power generation companies.
- Advising Envision Energy on various issues related to the execution, performance, implementation, construction, and operation of the two renewable energy projects it holds in the Province of Buenos Aires, García del Río and Vientos del Secano.
Martínez de Hoz & Rueda
Martínez de Hoz & Rueda regularly advises international investors, developers, landowners and energy companies operating in the renewable and traditional energy sectors. The lawyers advise clients on implementing solar and wind farm projects, including land acquisition and permitting approvals and financing issues, such as whether projects qualify under the large investment incentive regime (RIGI). The department is headed by public law specialist Juan Cruz Azzarri, who represents energy companies in local and international litigation and arbitration. Oil and gas and energy lawyers Pablo Rueda and Tomás Lanardonne are knowledgeable in regulatory and environmental matters, while Marcos Blanco is involved in the development, acquisition and sale of major energy projects, including providing support during the tender process. Arbitration expert José Martínez De Hoz participates in energy-related disputes.
Responsables de la pratique:
Juan Cruz Azzarri
Autres avocats clés:
Pablo Rueda; Tomás Lanardonne; Marcos Blanco; José Martínez De Hoz
Les références
‘In this practice, it’s essential to understand the regulations and the business in detail to be able to provide practical and realistic solutions. It’s also essential to understand the global energy business. MHR’s updates are timely, concise, and clear.’
‘The MHR team has extensive knowledge of all energy sectors and understands them in an integrated manner, providing practical solutions. José Martinez de Hoz Jr., Pablo Rueda, Tomás Lannardone, and their colleagues are, in my opinion, the best team of energy lawyers in Argentina today.’
‘MHR has excellent lawyers in this department. They handle procedures very proactively, and they have all the necessary knowledge to move quickly through negotiations, authorisation processes, etc.’
Principaux clients
JinkoSolar Holding
Jinko Power
Fortescue Future Industries
Goldwind
International Finance Corporation
Neoen
Corporación Andina de Fomento
Genneia
YPF Energía Eléctrica
RELP (formerly Greenmap)
Orazul Energy
Eoliasur
PECOM Servicios Energía
Industrias Juan F. Secco
Principaux dossiers
- Assisting Neoen in all aspects of its activities in Argentina regarding the development and operation of two solar PV projects (100 MW each) located in the Province of Salta, which were awarded under the RenovAR Program (Rounds 1 and 2).
- Representing Goldwind, a world-leading wind turbine technology and energy solutions provider, in its activities in Argentina.
- Advised Total Austral and Compañía General de Combustibles on possible courses of action regarding Resolution SE 58/2024, under which the Argentine Government established that, subject to agreements with producers, amounts owed for natural gas purchases for the supply of Argentina’s thermal generation park would be settled through the delivery of sovereign bonds.
Marval O’Farrell Mairal
Energy companies, investors and public utilities benefit from Marval O’Farrell Mairal‘s contractual and regulatory acumen, which includes drafting power purchase and EPC agreements and securing approvals for generating, transmitting and distributing electricity. It also has a robust public tender practice in the context of cogeneration, thermal, hydroelectric, nuclear, and renewable energy projects. The practitioners assist clients with bidding processes, preparing tender submissions, and negotiating with public authorities (including the renegotiation of public works contracts). Another strength is representing clients during disputes and out-of-court settlements with the Argentinian government regarding project suspensions. Department head Francisco Macías provides regulatory, contractual, and tax-planning advice to clients developing renewable energy projects. Public law partner Gonzalo Santamaria is involved in project development and financing, including advising on new large investment incentive regimes, and acquisitions of electricity companies.
Responsables de la pratique:
Francisco Macías
Autres avocats clés:
Gonzalo Santamaria
Les références
‘Excellent depth and unbeatable responsiveness, even in the face of extremely complex issues. Ability to provide an answer by analysing an issue from all possible legal angles. An authentic full-service law firm.’
‘It’s clear that Gonzalo Santamaria is fully up-to-date with regulations, maintains appropriate channels for updates regarding new developments that may impact the sector he advises on, and, most importantly, has a deep understanding of the business. His advice was prompt, accurate, and appropriate.’
Principaux clients
Glencore Pachón
Gezhouba Group
FlowEnergy
Golden Arches
MWh Solar
Cargill
General Fuel Company
Integra Capital
Empresa de Energía del Cono Sur
Stellantis
Principaux dossiers
- Advised FlowEnergy on regulatory and contractual matters related to a renewable self-generator solution offered to FlowEnergy’s clients.
- Advising Gezohuba Group and Eling Energía on several matters, including the renegotiation of a public works contract for the construction of two hydroelectric dams in the Province of Santa Cruz.
- Advising MWh Solar, the first self-generator to secure the fiscal benefits contained in Law No. 27,191, on regulatory and contractual matters regarding the project.
Pozo Gowland Abogados
Praised for its ‘specific knowledge of the energy sector and its regulatory system’, Pozo Gowland Abogados assists electricity companies with securing the necessary approvals, permits and licences for traditional and renewable energy projects (including wind, solar and hydroelectric). Its expertise includes contractual matters, such as negotiating and drafting power purchase and EPC agreements and maintenance and electricity supply contracts. Public tenders are another focus – the lawyers assist with the bidding process and negotiate public contracts and addendums with government authorities. The team is led by administrative law specialist Héctor Pozo Gowland; infrastructure and real estate lawyer Esteban de Vedia, who is skilled in litigation and arbitration involving energy sector issues; and Carlos Miná, who is well versed in public and private tenders and the renegotiation of public utility concession agreements. Francisco Pozo Gowland and Santiago Durigón are other notable names at partner level.
Responsables de la pratique:
Héctor Pozo Gowland; Esteban de Vedia; Carlos Miná
Autres avocats clés:
Francisco Pozo Gowland; Santiago Durigón
Les références
‘Its specific knowledge of the energy sector and its regulatory system, its wide portfolio of lawyers covering all specialities, its responsible and cordial treatment of clients, and constant compliance with the agreed deadlines.’
‘It has a portfolio of important clients, including key companies in the Argentine energy sector.’
‘Detailed knowledge of the electricity sector.’
Principaux clients
Edenor
Pampa Energy
Yacylec
Transba
Transener
Edesur
Central Dock South
Transpa
Cammesa
Transnea
Transnoa
Distrocuyo
Norte Grande Electric
Chocón Hydroelectric Plant
Enel Green Power
Central Costanera
Energy Conveyor
IEASA
Edemsa
Orazul
Strawberry
Enecor
BLC
Tel3
MSU
Belgrano Thermal Power Plant
San Martín Thermal Power Plant
Mercosur Transmission Company
Enel Group
Principaux dossiers
- Advised electricity transport companies in presentations made to modify the calculation mechanism of their penalties and to grant them priority in payment of their debts by Cammesa.
- Advising a company on the construction of a data centre in Argentina and the conclusion of the PPA to obtain the necessary energy supply.
- Represented an association of electric power generating companies in the claim for payment of credits owed by the national government.
Tavarone, Rovelli, Salim & Miani
Tavarone, Rovelli, Salim & Miani‘s energy, infrastructure, and public law team is ‘highly skilled and up-to-date’ on energy sector issues, with renewable energy sources such as biomass, natural gas, wind and solar as particular strengths. The practice excels in drafting and negotiating key contracts, including power purchase, supply, and operation and maintenance agreements. This expertise also spans the development, financing, construction, operation, and post-completion sale of such projects. The practice is led by Nicolás Eliaschev, who is skilled in arbitration and represents wholesale electricity consumers in their dealings with suppliers and regulators, and public and regulatory lawyer Javier Constanzó, who advises banks and sponsors on traditional and green energy projects. The strong senior associate group includes Daiana Perrone, who is consulted on regulatory issues and bidding processes, and Milagros Piñeiro and Florencia Martínez Trobbiani, who are effective in transactional matters, including project contracts. Semi-senior associate Macarena Becerra joined the team in December 2024 from Estudio Comadira.
Responsables de la pratique:
Nicolás Eliaschev; Javier Constanzó
Autres avocats clés:
Daiana Perrone; Milagros Piñeiro; Florencia Martínez Trobbiani; Macarena Becerra
Les références
‘Highly skilled and up-to-date personnel regarding the renewable energy sector.’
‘Flexibility and responsiveness.’
‘Exceptional availability and response to requests.’
Principaux clients
Josemaría Resources
Genneia
MSU Energy
MSU Green Energy
Eramine South America
Aconcagua Energy
SCC Power
MSU Agro
Posco Argentina
RP Global Argentina
Tassaroli
Argentine Wind Chamber
Subscription Wind
Principaux dossiers
Baker McKenzie
Baker McKenzie‘s capabilities include handling traditional and renewable energy projects, including solar and hydroelectric energy. The practice supports its international and local clients with the regulatory, contractual, commercial, and pricing aspects of their operations, such as negotiating power purchase and EPC agreements, and ancillary contracts such as share pledge and collateral agreements. It also advises on any regulatory issues arising from projects and construction delays. The department is headed by Buenos Aires managing partner Adolfo Durañona and Ezequiel Artola, both commercial, corporate, and M&A practitioners who focus on the energy, renewables, and infrastructure sectors. Martín Barreiro, the head of the firm’s tax division, assists energy clients with the tax aspects of their projects.
Responsables de la pratique:
Adolfo Durañona; Ezequiel Artola
Autres avocats clés:
Martín Barreiro; Delfina Ferrario
Les références
‘Ezequiel Artola is a super approachable person, clear in his answers and advice, and very knowledgeable on the subject.’
‘Excellent service.’
‘They stand out for their professionalism.’
Principaux clients
China Triumph International Engineering Co.
Colgate Palmolive
Procter and Gamble
Vestas
Bemis
Ecopetrol
Bunge
Principaux dossiers
- Advised China Triumph International Engineering (CTIEC) on negotiating, proving the sufficiency, and replacing guarantees granted under the EPC for the development of two photovoltaic projects, including a change in the guarantees’ structure and implementation.
Brons & Salas
Brons & Salas has built a reputation for representing energy companies in international arbitrations and judicial collection actions brought by other companies, state regulators, and consumer associations. These claims concern a range of issues, such as improper terminations of power purchase agreements, non-payment for power services, and the collection of penalties. Aside from its contentious work, the team also advises on the development and operation of energy projects (both hybrid and renewables), including real estate, contractual, and local and federal regulatory advice. The department is co-chaired by Sebastián Álvarez, who is immersed in the Argentine electricity market and regulatory framework, and litigation and arbitration specialist Joaquín Vallebella, who also assists with public bids and renegotiations of concession contracts. Associate Matias Foiguel advises on administrative and regulatory matters.
Responsables de la pratique:
Sebastián Álvarez; Joaquín Vallebella
Autres avocats clés:
Matias Foiguel
Les références
‘Brons & Salas combines experience, knowledge, professionalism and a strong commitment to its clients. Its adaptability and focus on innovation make it an excellent choice for businesses’
‘They stand out for their focus on understanding the specific needs of the company. They adapt to market changes and new trends.’
Principaux clients
Compañía Administradora del Mercado Mayorista Eléctrico
Clorox Company (currently Grupo Ayudín)
Grupo Peñaflor
Solar Turbines International Company
Fortescue Metals Group
Halliburton Argentina
Shandong Gold
Province of Misiones
Mercedes Benz Argentina
Newsprint
Principaux dossiers
Abeledo Gottheil Abogados
Abeledo Gottheil Abogados plays a central role in litigation and alternative dispute resolution matters focusing on the energy industry, especially in relation to the construction of wind farms and oil plants, such as issues with equipment or subcontractors. The team also assists with transactional and regulatory matters, including negotiating power purchase agreements, and tax issues, such as the incentives available for investors in renewable energy. The practice is steered by Hernán Martín Oriolo, who is supported by associate Florencia Buczak.
Responsables de la pratique:
Hernán Martín Oriolo
Autres avocats clés:
Sergio Porteiro; Florencia Buczak
Les références
‘Excellent lawyers and honest, pleasant, and trustworthy people. This combination isn’t very common.’
‘It is a firm with a recognised track record in this area and is well positioned in the market, with in-depth knowledge and a solid overall practice.’
‘Extensive experience in the sector. I would like to mention Hernán Oriolo.’
Principaux clients
YPF
Hitachi Energy
ABB
Aluar Aluminio Argentino Sociedad Anónima Industrial
Principaux dossiers
- Assisting Aluar Aluminio Argentino Sociedad Anónima Industrial in making a claim and associated negotiations regarding the correct repair of the equipment vital for the production of the client’s product, and for alleged non-compliance with legislation concerning the use of power produced via renewable resources.
- Providing legal assistance to ABB regarding the recently enacted incentive regime for large investments, which provides for the possibility of receiving foreign investments in several areas, among them renewable energy.
Mitrani Caballero
Mitrani Caballero regularly handles matters involving renewable, conventional, nuclear, and hybrid power sources, as well as off-grid and industrial supply solutions. The team’s expertise includes power purchase agreements, regulatory filings, tariff structures, and investment tax incentives. The practice also represents clients in arbitration, litigation, and negotiations with government agencies and market operators in the electricity sector. The practice is led by Horacio Ruiz Moreno, an expert in corporate, administrative, and dispute resolution matters in the sector.
Responsables de la pratique:
Horacio Ruiz Moreno
Les références
‘We previously worked with this firm on projects in Argentina, and their work quality was very good and impressive. The partners responded quickly with commercially sensible advice.’
‘Mitrani Caballero’s quality of advice was impressive, and he always responded quickly. He also honoured the fee cap commitment, which impressed the client very much.’
Principaux clients
Aluar Aluminio Argentino
Central Puerto
Export-Import Bank of China
Mitsui & Co
Proparco, a subsidiary of Agence française de développement (AFD)
Soenergy
Tecpetrol
Ledesma
Principaux dossiers
Pérez Alati, Grondona, Benites & Arntsen
Pérez Alati, Grondona, Benites & Arntsen advises companies, such as Pampa Energía and Genneia, on transactional and regulatory issues involving the construction, financing, and operation of renewable electricity projects, including solar and green hydrogen. The practice is headed by Francisco Romano, who is well versed in Argentine and international energy regulations, and firm co-founder Mariano Grondona, whose extensive litigation and arbitration experience includes cases involving the electricity sector. Firm founder and corporate and banking lawyer Alan Arntsen lends his project finance expertise to the team.
Responsables de la pratique:
Francisco Romano; Mariano Grondona
Autres avocats clés:
Alan Arntsen; Tomás Fernández Madero
Principaux clients
Mercuria Energy Group (and affiliates and subsidiaries)
Phoenix Global Resources plc (and affiliates and subsidiaries)
Petrolera El Trébol
Pampa Energía
Dow Chemical
Trafigura
IFC
YPF
Wintershall Energía
Equinor
Shell
Albanesi