Ministry of Mines and Energy demands ANEEL tighten oversight of power distributors as gales and storms leave nearly 2 million consumer units in Rio and São Paulo without power
Alexandre SilveiraSandoval FeitosaLightEnel São PauloEnel RioNational Electric Energy Agency

Ministry of Mines and Energy demands ANEEL tighten oversight of power distributors as gales and storms leave nearly 2 million consumer units in Rio and São Paulo without power

The Ministry of Mines and Energy has urged the National Electric Energy Agency (ANEEL) to enhance oversight of power distributors after severe storms left nearly 2 million consumers in Rio de Janeiro and São Paulo without electricity, prompting an investigation into the companies' contingency plans and operational responses.

Canal Solar1 August 2026 · 03:21 UTC
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The Ministry of Mines and Energy (MME) has called for stricter oversight from the National Electric Energy Agency (ANEEL) following severe storms that caused widespread blackouts in Rio de Janeiro and São Paulo, affecting nearly 2 million consumer units.123456789

In a letter to ANEEL's Director-General, Sandoval Feitosa, Minister Alexandre Silveira requested an evaluation of the power supply interruptions that occurred on Wednesday (29). The storms left approximately 1.9 million customers in Rio without power, primarily affecting consumers served by Light and Enel Rio.

In São Paulo, the storms disrupted service to more than 70 customer units within Enel São Paulo's concession area. The Ministry is demanding an investigation into the actions of the distributors during the incident, focusing on whether their contingency plans were executed properly and if they met their contractual obligations.

Silveira also emphasized the need for a coordinated response and requested that all measures taken by the distributors to restore power be reported to the MME for monitoring purposes. Even prior to the official letter, ANEEL had already reached out to the presidents of Light and Enel Rio for clarifications regarding the outages.

The agency is actively monitoring the restoration efforts and may take administrative action if any regulatory non-compliance is identified during the emergency response.

Key Insight
“Minister Alexandre Silveira's Thursday letter to ANEEL Director-General Sandoval Feitosa asked the agency to evaluate the outages, verify contingency plans, and check whether concessionaires met their contract obligations. ANEEL had already notified the presidents of Light and Enel Rio, and may adopt administrative measures if regulatory failures are found.”
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Canal Solar
“The blackouts caused by the gales and severe storms that hit the states of Rio de Janeiro and São Paulo led the Ministry of Mines and Energy (MME) to demand more rigorous action from the... ANEEL (National Electric Energy Agency) in the oversight of distributors responsible for service in these regions.”
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