Spinning steam turbine generators also can't just turn on/off instantly. They need to ramp up/down. If you can't ramp up fast enough to meet demand, you have issues. When solar drops off pretty fast, and people come home from work and start turning on appliances, you suddenly have a huge amount of power needed from generators.
The solution of course is more batteries, but you can't really incentivize non-peak generation until you get the batteries. That's part of the NEM3 change that the blog mentions, to change the incentives from just solar to solar and battery.
Even has a name: https://en.wikipedia.org/wiki/Duck_curve
The solution of course is more batteries, but you can't really incentivize non-peak generation until you get the batteries. That's part of the NEM3 change that the blog mentions, to change the incentives from just solar to solar and battery.