Energy engineers have warned, the greater the penetration of a grid by intermittent and unreliable (“Renewable”) energy, the less stable the grid becomes. And the more difficult the challenge to manage it.
Well...since you mentioned it things are even worse than just being unstable. If that was the price for getting off coal that would be one thing. The reality is that in order to accommodate the rapid fluctuations caused by the UUS (intermittents/unreliables) the nat gas generators have to run in open loop mode which is far less efficient (say 40% max) instead of combined cycle (say 60% max).....bottom line being that the UUS provided nothing by way of a net increase in generation.
It is all a big scam with instability, huge costs and all kinds of other aggravation as part of the package.....and while I don’t classify myself as an energy engineer directly involved with the grid I deal with energy engineering daily in enough related fields to see that this is what is going on.