
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.
Legal 500 Editorial commentary
Accolades
Client satisfaction
Testimonials
Collated independently by Legal 500 research team.
- '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.'
Key clients
- Glencore Pachón
- Gezhouba Group
- FlowEnergy
- Golden Arches
- MWh Solar
- Cargill
- General Fuel Company
- Integra Capital
- Empresa de Energía del Cono Sur
- Stellantis
Work highlights
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.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Francisco Macías
Other key lawyers
Gonzalo Santamaria

