The team at ONTIER is noted for its work across the full lifecycle of energy and infrastructure projects, including financing, development, construction, operation and asset sales matters. Practice head Lucía González Fernández advises on corporate transactions, restructuring processes and contractual issues in the renewable energy space. Silvia San Felipe, head of energy and utilities regulatory team, is recognised for her expertise in energy regulation, public law and contentious matters, while Jorge Álvarez focuses on urban planning, public law and regulatory issues. Project finance specialist Manuel Mingot joined from Squire Patton Boggs in May 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Their main strengths are their deep knowledge of the subject matter and their client-centred approach, which makes every proposed solution clear and easy to understand. They are also highly proactive in promoting understanding of new regulatory developments, particularly around emerging storage technologies.’
- ‘The close, proactive approach to client service is what truly sets them apart. One member of the team, Silvia SanFelipa, does an exceptional job.’
- ‘The most valuable aspect of the project finance team is its experience, especially the expertise of Israel Gómez-Caro, who leads the practice. His insight goes far beyond legal matters. He understands the broader dynamics and stakeholders of energy projects, enabling him to anticipate issues and offer practical solutions.’
- ‘They demonstrate thorough knowledge of new legislation and, most importantly, its real-world application.’
- ‘They maintain excellent relationships with public authorities and provide prompt, expert responses. Their availability and the quality of their advice are consistently strong.’
- ‘They have successfully integrated a multidisciplinary team that works in complete coordination, sharing knowledge across practices to provide solutions from every angle.’
Key clients
- Iberdrola Energía España, S.A.U.
- Axpo Solar Iberia, S.L.
- Capital Energy Group
- Fundación Asturiana de la Energía (FAEN)
- Alpiq Energía España, S.A.
- TotalEnergies Group
- Abo Energy España, S.A.
- Galileo Green Energy
- Édora Technology, S.L.U.
- Avalon Renovables
- Alfanar Energía España, S.L.U.
- IDEnergy Group, S.L.
Work highlights
Advising Iberdrola on the first greenwashing lawsuit against Repsol for “unfair competition” and “misleading advertising".
Advising Axpo Solar Iberia on the acquisition of two photovoltaic projects with a capacity of 65 MWp and 51 MWp, respectively, from with Viridi RE Development GmbH and Solar Ambition Europe GmbH, as sellers.
Advising TotalEnergies Group on the hybridisation of renewable electricity generation plants in different development/operation stages with battery energy store or BESS, as well as in the start-up and operation of stand-alone energy storage projects, in several regions throughout Spain
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Lucía González Fernández
Other key lawyers
Silvia San Felipe; Jorge Alvárez; Manuel Mingot; Israel Gómez-Caro; Paula Rubio