Minas Gerais power outage: around 70% of affected customers reconnected, Cemig says
Cemig says the storm on 25 October 2026 affected about 640,000 customers in Minas Gerais, Brazil. In a statement published on 26 October, the operator said approximately 450,000 had been reconnected, around 70% of those affected. Restoration work was continuing. These are approximate customer figures from an operator snapshot, rather than a live count of people without electricity.
Status of this incident
Partial / reduced supply
Last known status: partly restored · According to Cemig’s 26 October snapshot, around 70% of affected customers have been reconnected. Work continues; completion time unknown.
Source moment: Oct 26, 2026, 04:07 PM UTC (01:07 PM local time)
In 20 seconds
Cemig reports about 640,000 customers affected cumulatively and approximately 450,000 reconnected.
More than 4,600 professionals are mobilised to restore electricity, according to the operator.
No exact restoration deadline or complete affected-address list has been established.
What the Cemig snapshot establishes
The operator published its update at 13:07:23 local time in Minas Gerais on 26 October, equivalent to 16:07:23 UTC. That is the publication time of the statement. The exact observation time behind the figures is unknown, so the totals should not be treated as a continuously updated evening assessment.
The approximately 640,000 figure describes customers affected by the storm cumulatively. It does not mean that all those customers were still disconnected when the statement appeared. Cemig said around 450,000 had been reconnected, approximately 70% of those affected. The rounded figures do not establish a precise remaining total, and customers must not be converted into a count of people.
What the sources tell us, and what they do not
- Reported region
- Minas Gerais, Brazil
- Customers affected cumulatively
- About 640,000, according to Cemig
- Customers reconnected
- Approximately 450,000; around 70% of those affected
- Full restoration time
- Unknown
Restoration teams remain mobilised
Cemig says more than 4,600 professionals are mobilised to restore electricity. For Cemig specifically, the utility describes this storm as the largest weather impact in its own 74-year history. This is Cemig’s comparison of the impact on its own operations, not an independently established ranking of storms or outages across Brazil.
The update says restoration work continues, without an exact completion time. The available evidence does not establish a complete list of affected streets, an outage across every part of Minas Gerais, or a citywide interruption in Belo Horizonte. The exact onset time on 25 October is also unknown. No single duration can therefore be assigned to all affected customers.
Planning for essential devices
For preparation, the runtime calculator helps estimate how long a battery could support essential devices. The internet backup planner covers connectivity needs, while the grid-down essentials guide offers wider planning context. These tools do not confirm electricity at an address or predict when Cemig will reconnect it.