[dfawcus]

The interconnectors between UK and the continent are HVDC.

As such they are essentially massive switching-mode PSUs, and there is no possibility of having a synchronised connection, as the AC has to be synthesised, following the local spinning iron.

[cm2187]

But also europe isn't that large. When there is no wind in the UK, there is no wind in France or Italy. Which means not only do they not provide diversification, they will import at the same time.