Profile

Mariana Coelho dos Santos joined Pérez-Llorca in 2025 as an associate in the Public Law and Regulatory practice at the Lisbon office. Prior to joining Pérez-Llorca, she worked as an in-house lawyer at a renowned Portuguese energy multinational company and was part of the Energy & Climate Change department at another international law firm.

Studies:

• 2023 Postgraduate Diploma in Public Procurement Law and Practice, Lisbon Faculty of Law, Universidade Católica Portuguesa.
• 2022 Course on the Legal Framework for Electric Mobility, Nova School of Law.
• 2017 Postgraduate Diploma in Administrative and Tax Justice, CEDIPRE, Universidade de Coimbra.
• 2016 Master’s Degree in Legal and Political Sciences (specialisation in Administrative Law), Faculty of Law, Universidade de Coimbra.
• 2014 Law Degree, Faculty of Law, Universidade de Coimbra.

She is fluent in both Portuguese and English.

Experience

Mariana’s practice focuses primarily on the energy sector, with experience in renewable energy (solar, wind, and hydro), electric mobility, self-consumption production, as well as activities related to the electricity and gas sectors (generation, distribution, and commercialisation). She also has solid experience in public law matters, especially public procurement — including preparing and assisting with bids and tenders, and advising on public contract procedures — and licensing processes.

Academic and Publishing Collaborations

• “Os instrumentos normativos europeus da eficiência energética: em particular a Diretiva Europeia sobre Eficiência Energética”, in Direito da Eficiência Energética, ed. Suzana Tavares da Silva, Instituto Jurídico da Faculdade de Direito, Universidade de Coimbra, 2017.
• “Oportunidades económicas dos Mercados Voluntários de Carbono no contexto das políticas agrícola e florestal – A Lousã como caso de estudo”, António Manuel Rochette, Suzana Tavares da Silva, and Mariana Coelho dos Santos, Instituto Jurídico da Faculdade de Direito, Universidade de Coimbra, 2016.
• “A Eficiência Energética como “questão jurídica” de implementação de uma política”, Suzana Tavares da Silva and Mariana Coelho dos Santos, in Temas Relevantes do Direito de Energia Eléctrica– Volume V, ed. Fábio Amorim da Rocha, Editora Synergia, 2016.

Professional Organisations

• The Portuguese Bar Association (Ordem dos Advogados).