This isn't a good thing unless it's paired with storage and transmission upgrades. Every time this kind of story posts I make this same comment and am met with the same probably well-meaning but ignorant responses. Solar generation is easy and cheap and simple. Actually getting that power where it needs to be, when it needs to be there is complex and expensive. You either need to store it or you need to transmit it very long distances, neither of which we can do effectively right now. Most of California routinely goes into negative power pricing - this is not the mark of a healthy system, it represents a massive inefficiency and destabilizing factor.
We need to pressure politicians to subsidize pump storage powerplants and massive transmission system upgrades (which means being ok with permitting new transmission lines) it's simply impossible to continue increasing the solar on the grid otherwise, we are rapidly approaching instability.