As noted elsewhere, solar peak is at noon and usage peak is hours later. Wind power happens whenever the wind blows.
The problem is that they have taken other more reliable sources offline. If the 25% you reference were more reliable they wouldn't have to warn people about power usage just in case it got cloudy or wasn't breezy enough. I read that they had to turn off a desalination plant because of the power crunch. That makes their drought even worse. Doesn't sound like winning to me.
Turning off desalination plant if it is easy to turn on-and-off seems like one of the smart use cases. Just need to have it to have overprovisioned size so that it can stock pile water when power is available at reasonable rates. And that really isn't a complex thing, we have been doing it for millenia now.
The problem is that they have taken other more reliable sources offline. If the 25% you reference were more reliable they wouldn't have to warn people about power usage just in case it got cloudy or wasn't breezy enough. I read that they had to turn off a desalination plant because of the power crunch. That makes their drought even worse. Doesn't sound like winning to me.