
Playing a key role in some of the most significant financing and M&A transactions in the Brazilian power sector, Mattos Filho combines deep corporate expertise with the ability to navigate complex regulatory issues tied to acquisitions. Also active in the energy transition space, it guides companies on the structuring of self-production projects and implementation of green hydrogen initiatives, including regulatory frameworks and tax incentive schemes. The team’s regulatory strength is further demonstrated in judicial lawsuits and administrative proceedings before ANEEL, particularly in matters concerning regulatory compliance and interruptions in electricity distribution related to recent extreme weather events. Fabiano De Brito is active in all power segments, regularly advising domestic and foreign clients on regulatory, transactional and contentious mandates. Sofia Barbosa handles transactions, administrative proceedings, regulatory matters, and sector-specific contracts and auctions. Based in Rio, Felipe Feres focuses on M&A and project work, with notable activity in power purchase agreements (PPAs). Associate Bárbara Mendes Carnevalli brings experience in regulatory issues, M&A, bidding procedures, and contractual matters.
Legal 500 Editorial commentary
Key clients
- Mainstream Renewable Powers
- Acciona Energia Chile S.P.A
- CEIBA Group (Portocem and Breitener)
- Corumbá Concessões S.A.
- Eurus Energy America LLC
- Câmara de Comercialização de Energia Elétrica – CCEE
- Light S.A.
- Banco Nacional de Desenvolvimento Econômico e Social - BNDES
- AES Tietê Energia S.A.
- Equatorial Energia and all its Affiliates
- Norsk Hydro, Hydro Rein and its Renewable Affiliates
- Albras – Alumínio Brasileiro
Work highlights
Advised Enel-SP on the administrative and judicial defences regarding the climatic event of November 3rd, 2023, including in the largest fine ever imposed by ANEEL in history.
Advised Neoenergia S.A. on the structuring of a self-production by equivalence project with CCR.
Advised Equatorial Maranhão on the dismissal of a case by ANEEL which could have resulted in a fine of R$95m.
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.
Other key lawyers
Fabiano Ricardo Luz de Brito; Fabiano Ricardo Luz de Brito; Felipe Feres; Barbara Mendes Carnevalli

