Praised by clients for its expertise and recognition in the market, Guyer & Regules' projects and energy team provides a one-stop-shop service that spans the industry. Clients, from developers, sponsors and financial entities to major players in the solar and oil and gas sectors, turn to the firm for advice on power purchase agreements, PPP, project financing and the full range of concession, construction and leasing agreements. As well as its prominence in the oil and gas space, the practice has experience in solar and biomass projects, green hydrogen and e-fuels advice and is leading the market in terms of assistance with multi-purpose port terminals. As an established figure in the sector, Juan Manuel Mercant leads the team; his broad energy and infrastructure expertise encompasses oil and gas, renewable energies and hydrogen infrastructure projects. Practice co-head Federico Susena specialises in the oil and gas industry, as well as playing an active role in green hydrogen projects, blockchain facilities and infrastructure developments. Federico Piano focuses his practice on project finance, advising a diverse clientele of developers, financers and institutional investors throughout the full project life cycle, from conception to operation. Marcos Payssé is experienced in PPP projects and project bonds, and counts an impressive list of lenders, developers, agents and sponsors among his clients. At the associate level, Javier Napoleone plays a key role in project finance mandates related to power and infrastructure projects. Tania Cavallo advises both local and foreign banks, multilaterals and financial institutions, as well as negotiating roadway construction contracts with the Uruguayan government.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Guyer's team is extremely capable, made up of excellent people and professionals. The human quality and depth of knowledge stand out.’

  • ‘The firm's lawyers have specialisation in the matter. Likewise, they have participated in highly relevant projects which have given them recognition in the market. Guyer & Regules has a multidisciplinary team that allows comprehensive advice to clients on projects and energy. Among the lawyers worth highlighting, I mention Federico Piano.’

  • ‘Extensive knowledge, in addition to legal expertise, extensive knowledge of the context, and the development of energy policy, in addition to participation in academic developments in the sector.’

  • ‘Their best qualities are their humane treatment, their ability to understand the needs of their clients and follow the times of the companies they advise. Furthermore, the human quality of its professionals makes them the best. I especially want to highlight Federico Piano and Juan Manuel Mercant.’

  • ‘Guyer & Regules is a reliable, updated and modern firm, which remains at the forefront both in legal matters and in applied technology, which differentiates it and makes it different from any other firm. Add to this the human quality of treatment and attention.’

  • ‘Federico Susena has an impressive intellectual capacity and dedication to clients, updated and in constant contact and monitoring of the client.'

  • ‘Federico Piano: Provides efficient and quality service. Always attentive to provide assistance. I highlight the human quality of the professional.’

  • ‘Guyer is an expert in the sector. It is difficult not to be able to consult them about something they have not seen. They have participated in everything and can give their opinion on everything with completeness and professionalism. It is difficult to face a project without thinking that at least laterally you can work with them.’

Key clients

  • Ventus
  • Acciona
  • Abertis Total
  • Shell
  • Engie
  • Tesla Energy
  • NEXZUR
  • Hudson Clean Energy Partners
  • Aldesa Construcciones
  • Consorcio PPP Circuito Vial I (Traxpalco and Hernandez & Gonzalez)
  • Gasoducto Cruz del Sur
  • Consorcio PPP Centros Educativos 2 (Saceem / Stiler / Berkes)
  • Corporación Andina de Fomento
  • Power Systems
  • CAFAM Administradora de Activos de Uruguay
  • Techint
  • Giacote
  • GX Technology
  • Celeo Redes (Elecnor)
  • Interamerican Development Bank
  • Consorcio PPP Circuito Vial 7 (GRUPO SAN JOSÉ)
  • Boskalis
  • Ontur
  • Montelencor
  • Engraw Export & Import
  • Apache Corporation
  • YNEL
  • Blue Arrow
  • HIF (Highly Innovative Fuels)
  • DH2 Energy
  • TETHER
  • Longreach

Work highlights

  • Assisting CIEMSA in a private initiative proposed to the government to construct and maintain a plant in Montevideo to transform garbage into methanol for fuel for ships and vessels.
  • Advising CIEMSA, SACEEM, TEYMA and FAST on a private initiative for constructing and maintaining water treatment plants and sewers in more than 60 towns and locations in Uruguay.
  • Assisted APA Corporation in the submission of its binding offer to ANCAP concerning Block OFF-6.

Lawyers

Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
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

The lawyer(s) leading their teams.

Juan Manuel Mercant, Federico Susena