ACU Abogados
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‘Expert in specific energy issues’, ACU Abogados' regulatory lawyers routinely represent clients (such as major energy players, trade organisations and mining entities) before the the Electricity Law Experts Panel. It is particularly well regarded for its energy storage regulation and biogas project specialisms. The department is led by firm co-founder Nicolás Atkinson, who ’has extensive industry knowledge and a strong network of contacts’. Atkinson acts for utilities, investors and project developers on waste-to-energy, wind and solar projects, along with energy contracts and trading. In the associate team, the practice of both Ana María Mandujano and Catalina Montiel also include energy and natural resources mandates. Former director Teresita Vial departed the firm in January 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Great know-how and experience in client relations.’
- ‘The availability and speed of responses make the ACU Abogados team unique.’
Key clients
- Eolia Sur
- Panamerican Silver
Work highlights
Advising Eoliasur, through its affiliate Flexen, on the development of energy storage systems.


