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Portugal's power swaps with Spain are still suspended amid a blackout investigation

The energy minister announced on Friday that Portugal supplies electricity to its clients using its own resources, as the power exchanges between Portugal and Spain are still suspended due to an investigation into the cause of the blackout this week.

On Monday, Spain experienced a massive outage of its electricity grid. This also caused a power outage throughout Portugal as it imported cheaper renewable energy from Portugal.

After a meeting online with her Spanish counterpart Sara Aagesen, acting Energy Minister Maria da Graca Carvalho said to reporters: "For the time being, we will continue without exchanging electric with Spain, as a precaution. This shows the independence that we currently have."

She did not say when the power exchanges would resume, but physical connections between the two countries had already been restored.

The Minister said that she had asked European Energy Commissioner Dan Jorgensen for an interim report to be produced "much faster" than the usual six-month period.

She stated that the authorities had "no clue" as to what caused the outage. Millions of bits of data still need to be analysed in Portugal, Spain, and Europe by independent experts.

Aagesen, in a separate statement, said that the two countries had agreed to identify jointly the causes of this blackout and to take measures to prevent it from happening again.

Da Graca Carvalho stated that Portugal will make efforts to improve its electrical system's resilience and speed up recovery from a power outage. The Monday 10 hour delay was "an exemplary response".

"Nobody can be protected 100% from this event".

(source: Reuters)