You're looking completely ridiculous there. There are clouds in the sky and wind. These do affect solar and wind production. And these do vary from one year to another. The distribution of solar exposition or wind is not a constant, even on a continent scale.

This means you need to account for variations from one year to another. Which means you need incredibly large quantities of storage (probably not feasible), or incredibly oversized production capacity (not feasible either).

When antinuke people complain that nuclear lost capacity last year, that's the same with solar and wind, but it's random for the renewables when it's technical planning that was poor for nuclear.