CloudForbes Innovationabout 3 hours ago
Portugal Data Center Blackout Lasts 16 Hours
5 min read
On April 28, 2025, a data center in Sines, Portugal, lost utility power. ENTSO-E concluded the blackout resulted from voltage control issues and lasted between 12 and 16 hours. The incident highlighted that large-scale events cause correlated failures where backups fail for the same reason as primaries, proving that if you have one backup, you have nothing.
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