Denmark is a tiny country with pretty low consumption that can dump it's excesses (or borrow from) Sweden, Norway and Germany.
Wind power wont be more than a supplement. It's too variable. Power generation goes to the fourth power of wind speed, so forecasts being off by just hugely impact power generation.
It's nowhere near as predictable as solar. It can generate nothing for weeks at a time then generate at 100% for weeks at a time. Adding a full day of storage to something like that doesn't increase the capacity factor as well as something like solar.
Offshore wing is
not cheap either, it's triple the cost of onshore wind, and future price declines are 100% in solar's favor since wind still needs huge amounts of steel and concrete structures.
When we get all of our power from renewables it's going to come from solar in sunny places with dependable sunlight for all seasons pumped to where it is needed... For Europe that means Northern Africa.
When all the fossil plants are dead that's when the nuclear plants should be taken offline, IMHO.