Authorities in Finland are investigating the sudden failure of the Estlink-2 undersea power cable, which connects Finland and Estonia.
The outage occurred at 10:26 GMT on December 25 and reduced the cable’s capacity from 1,016 megawatts (MW) to just 358 MW, according to Finnish grid operator Fingrid.
At the time of the failure, electricity was flowing from Finland to Estonia at a rate of 658 MW. Despite this, both Finland and Estonia confirmed that their...