Marcio Rea
Director-general of Brazil's National Grid operator.
Marcio Rea oversaw Brazil's first competitive allocation of grid connection capacity on 6 and 7 October 2026 and said the results show the new access model works; three data centres took all 228 MW on offer.
Last refreshed: 18 October 2026 · Appears in 1 active topic
Timeline for Marcio Rea
Mentioned in: Brazil auctions its grid to data centres
Data Centres: Boom and BacklashBackground
Marcio Rea, director-general of Brazil's National Grid operator, the Operador Nacional do Sistema Elétrico (ONS), oversaw its first competitive allocation of connection capacity on 6 and 7 October 2026. He said the results show the new transmission-access model works. Three data-centre projects took all 228 MW on offer at four São Paulo points, against 451 MW of qualified demand.
Under Rea the ONS rejected as unviable the 86 MW capacity increase developer Pahlavan had planned at Paulínia, and Pahlavan took the dispute to a federal appeals court.
Rea was elected director-general in April 2024 for a term running from May 2024 to 2028. He previously ran EMAE, São Paulo's metropolitan water and energy company, and worked at CESP. Members of GO15, a group of large grid operators, elected him vice-president for 2026 and president for 2027.
Who runs Brazil's national grid operator?
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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 18 October 2026. Editorial standards.