Spain, Portugal's power restored; blackout's cause remains mystery

Power was almost fully restored to Spain and Portugal on Tuesday although many questions remained about what caused one of Europe’s most severe blackouts that grounded flights, paralysed metro systems, disrupted mobile communications and shut down ATMs across the Iberian Peninsula.

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By Tuesday morning local time, more than 99 per cent of energy demand in Spain had been restored, the country’s electricity operator Red Electrica’ said. Portuguese grid operator REN said Tuesday morning all of the 89 power substations were back online. Life was returning to normal, but Spanish authorities were still at loss to provide reasons for the most serious blackout ever in Europe that has little