Actually there can be a year without a wind - see low winds in Europe in 2021
https://www.france24.com/en/france/20220825-france-prolongs-...
Taking down such reactors is a periodically routine for maintenance. The question is only how fast you can bring them up again (especially in case of serious repair needs).
That can be easily rectified by building energy conservation facilities for wind (and other renewables) instead of halting wind generators.
No, you cannot avoid using electricity few months in summer to have electricity for the rest time. And you cannot double the number of extremely costly NPs to have one half online while another half is being maintained/repaired.