Wind is only useful up to a point, once it gets above 20% of generation capacity ensuing grid stability becomes expensive either through huge price swings or grid level energy storage.
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For the past year in the UK the average is ~30% generation from wind. https://grid.iamkate.com/
So seems it's possible. Swings in generation are dealt with via inter-country interconnects, pumped storage and gas turbine generation. Nuclear adds a steady base.
The UK's prices are a political choice due to the mapping of voters over the energy generation distribution.
Now, banning onshore wind in England for a decade when it was the cheapest source of energy available. That's just plain stupid (or a corrupt gift to your mates in gas companies).