Damage to the Estlink 2 power cable between Estonia and Finland may impact Finland's electricity supply during extremely cold days, according to an updated assessment by national grid operator Fingrid.
On typical winter days, Fingrid said the electricity supply should be sufficient, provided power plants and transmission networks operate normally.
However, in severe cold and windless conditions, there may be a shortage of power supply, according to the grid operator.
"If the weather turns exceptionally cold and windless, the role of demand flexibility becomes crucial in ensuring the adequacy of electricity supply," said Tuomas Rauhala, Senior Vice President responsible for System Operations at Fingrid.
The Eagle S oil vessel is suspected of damaging the subsea electrical transmission link in the Gulf of Finland on Christmas Day.
It was earlier reported that repairs to the cable could take up to seven months and cost tens of millions of euros, based on Fingrid's estimate.