Comment by ZeroGravitas

It is literally written into regulations in many places that renewables aren't allowed to go above certain percentages even for short periods e.g in Ireland they are raising the cap by 5% every so often with an aim to get to 95% by 2035, it's currently 75% and was 50% when they brought in that particular rule.

In Australia they keep reducing the number of synchronous generators that are required to be connected as they gain more experience.

Renewables started as fringe tech and are now a trillion dollar industry. But they faced skepticsims at every stage along the way.