Neoenergia Executive and Leadership Team

June, 2026

Leadership Overview

Neoenergia has 5 executives leading key functions including strategy, finance, technology, operations, and utility retail.

Driven by a commitment to sustainable energy solutions, Neoenergia operates as a leader in the Brazilian electric sector, focusing on generation, transmission, distribution, and trading while championing renewable energy and community development across 18 Brazilian states.

Leadership Roles at Neoenergia

  • Chief Executive Officer - Mario Ruiz-Tagle Larrain
  • Chief Financial Officer - Erik Breyer
  • Group Chief Financial Officer, Iro - Leonardo Gadelha
  • Chief Operating Officer (Utility Retail & Renewable & Human Resources & General Services & Systems & Technology) - Giancarlo Souza
  • Chief Technology Officer, Data - Vivian Prieto
  • Mario Ruiz-Tagle Larrain - Chief Executive Officer

    Mario Ruiz-Tagle Larrain, the Chief Executive Officer at Neoenergia, directs the company's overarching strategy and market positioning within the Brazilian energy sector. This leadership role involves guiding Neoenergia's comprehensive operations, which span energy generation, transmission, distribution, and trading across 18 Brazilian states. Ruiz-Tagle Larrain ensures the company's strong focus on renewable energy sources, aligning operational expansion with sustainable development goals. Overseeing the strategic direction, the Chief Executive Officer drives initiatives for infrastructure growth, including the construction of wind farms and transmission lines. Mario Ruiz-Tagle Larrain's executive oversight is critical for maintaining Neoenergia's leadership in the electric sector and for advancing its mission to promote sustainable development and improve quality of life in the communities it serves.

    Erik Breyer - Chief Financial Officer

    Erik Breyer, the Chief Financial Officer at Neoenergia, manages the company's financial health and strategic fiscal planning. This executive function involves overseeing all financial operations, including budgeting, forecasting, and capital allocation across Neoenergia's diverse business units. Breyer ensures robust financial controls are in place to support the company's extensive operations in energy generation, transmission, distribution, and trading throughout Brazil. The Chief Financial Officer plays a key part in securing funding for infrastructure projects, such as the ongoing expansion of wind farms and transmission lines, and in managing relationships with investors and financial institutions. Erik Breyer's financial acumen is essential for driving sustainable growth and ensuring the long-term economic viability of Neoenergia's operations across 18 Brazilian states.

    Leonardo Gadelha - Group Chief Financial Officer, Iro

    Leonardo Gadelha, the Group Chief Financial Officer, Iro at Neoenergia, directs the financial strategy and performance for the Iro group within the broader Neoenergia structure. This executive position involves rigorous financial oversight and strategic planning to support the company's extensive operations in energy generation, transmission, distribution, and trading across Brazil. Gadelha ensures financial discipline and optimizes capital deployment for key initiatives, including the expansion of renewable energy projects and transmission infrastructure. The Group Chief Financial Officer, Iro collaborates closely with other finance leaders to maintain robust financial controls and drive profitability. Leonardo Gadelha's financial leadership is integral to Neoenergia's sustained growth and its commitment to sustainable energy solutions and community development.

    Giancarlo Souza - Chief Operating Officer (Utility Retail & Renewable & Human Resources & General Services & Systems & Technology)

    Giancarlo Souza, the Chief Operating Officer (Utility Retail & Renewable & Human Resources & General Services & Systems & Technology) at Neoenergia, orchestrates a broad spectrum of critical operational functions. This extensive role encompasses overseeing utility retail operations, renewable energy project execution, human resources management, general services, and the integration of systems and technology across the company. Souza ensures the efficient delivery of energy services to millions of customers throughout Brazil, while also driving the development and expansion of Neoenergia's renewable energy portfolio. The Chief Operating Officer (Utility Retail & Renewable & Human Resources & General Services & Systems & Technology) is instrumental in optimizing internal processes, fostering a productive workforce, and implementing technological solutions that support the company's strategic objectives. Giancarlo Souza's comprehensive operational leadership is vital for Neoenergia's market presence and its commitment to sustainable practices.
    Giancarlo Souza

    Vivian Prieto - Chief Technology Officer, Data

    Vivian Prieto, the Chief Technology Officer, Data at Neoenergia, spearheads the company's technological advancements and data strategy. This critical role involves defining and implementing the technology roadmap to support Neoenergia's operations in energy generation, transmission, distribution, and trading. Prieto oversees the integration of innovative data solutions to enhance operational efficiency and decision-making across the company's extensive network serving millions of customers in Brazil. The Chief Technology Officer, Data drives initiatives related to digital transformation, ensuring that data analytics capabilities are leveraged to optimize performance and support the expansion of renewable energy infrastructure. Vivian Prieto's leadership in technology and data is fundamental to Neoenergia's commitment to sustainable development and its market leadership in the energy sector.

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    Frequently Asked Questions Regarding Neoenergia Top Executives and Leadership Team

    Who leads Neoenergia?
    Neoenergia is led by Mario Ruiz-Tagle Larrain (Chief Executive Officer), along with executives such as Erik Breyer (Chief Financial Officer) and Leonardo Gadelha (Group Chief Financial Officer, Iro).
    Who is part of Neoenergia’s executive team?
    The executive team of Neoenergia includes leaders such as Mario Ruiz-Tagle Larrain (Chief Executive Officer), Erik Breyer (Chief Financial Officer), Leonardo Gadelha (Group Chief Financial Officer, Iro) and other senior executives.
    How many executives does Neoenergia have?
    Neoenergia has 5 executives leading key business areas.
    What roles are included in Neoenergia’s leadership team?
    The leadership team of Neoenergia includes roles such as Chief Executive Officer, Chief Financial Officer, Group Chief Financial Officer, Iro, Chief Operating Officer (Utility Retail & Renewable & Human Resources & General Services & Systems & Technology), Chief Technology Officer, Data.