Rio de Janeiro was celebrating its 461st birthday on Sunday when the lights went out. A transmission cable ruptured on Estrada do Catonhó in the city’s west zone, tripping substations serving Barra da Tijuca, São Conrado, Rocinha, Jacarepaguá, Freguesia, and Taquara. Within hours, 160,000 properties sat in darkness.
Light, the distributor responsible for electricity across 31 municipalities in Rio de Janeiro state, deployed reinforced crews but offered no timeline for full restoration. Mayor Eduardo Paes said by 8 p.m. that 105,000 connections had been restored, leaving 55,000 still blacked out. He added that he was personally pressing the company’s president for answers.
A Pattern, Not an Incident
Sunday’s blackout is the latest in a string of failures that have made Light a symbol of infrastructure decay. In January, a cable theft on the underground network knocked out power to Copacabana and Leme for three days, prompting a court order threatening fines of R$200,000 ($35,000) per day. Earlier that month, a substation overload in Cachambi left swaths of the north zone without electricity during the hottest day of the year. In September 2025, a cable theft in Andaráí blacked out neighborhoods across the north, south, and central zones.
The company has reported over 200 incidents of cable theft in 2025 alone, costing R$13.4 million ($2.4 million) and destroying nearly 145 kilometers of wiring. Copacabana, Ipanema, and the city center are the hardest-hit areas.
The Concession Question
What turns a local infrastructure story into a national one is timing. Light’s concession to distribute power in Rio expires in June 2026 — just months away. The company, privatized in 1996, filed for judicial recovery in 2023 under R$11 billion ($2 billion) in debt. It does not collect payment for roughly 40 percent of the energy it distributes, largely due to theft in areas marked by urban violence.
The federal energy regulator ANEEL and the Ministry of Mines and Energy have both questioned whether Light meets the technical and financial standards to renew. Energy Minister Alexandre Silveira said publicly that companies lacking operational efficiency should not participate in the renewal process, naming Light directly. Mayors of all 31 municipalities under Light’s concession have petitioned ANEEL to accelerate a decision.
No Easy Replacement
Finding a successor is no simple matter. Analysts have warned that Rio’s concession is among the most operationally difficult in Brazil, given the combination of steep terrain, dense informal settlements, rampant cable theft, and energy losses far above regulatory benchmarks. The precedent of Enel in São Paulo, where a multi-day blackout affecting two million people raised calls for concession revocation, looms over the debate.
A City in the Dark
For Cariocas, the pattern is grimly familiar. Each blackout produces the same cycle: company statements about reinforced crews, mayoral tweets demanding accountability, and power eventually restored without structural change. Sunday’s outage, hitting some of Rio’s wealthiest and poorest neighborhoods simultaneously, was a reminder that decay does not discriminate. With the concession clock ticking, the question is no longer whether Light can keep the lights on, but who will try next.