zlacker

Depends on where you are! Jutland and Fyn can share via the Central European grid whereas Sjaelland is on the Nordic grid with Sweden.

https://en.wikipedia.org/wiki/Synchronous_grid_of_Continenta...

(There are several HVDC links between those grids, but as I understand it that adds capacitance for the purpose of pricing.)

>>Y_Y+(OP)
Indeed. I am on the island of Bornholm, just South of Sweden. There is only one cable connecting Bornholm, and it comes from Sweden (and once every couple of year a ship is sailing with its anchor out and tears the sea cable, so powercuts are longer and more frequent here than I'd prefer, but that's a story for another time).