Horses for courses, right? They build these entire peaker power plants to sit idle most of the time, just to handle the couple dozen or hundred hours of maximum load in the year.

4 hours at a time hopefully buys you your way through such a peak, even if it doesn’t get you through weeks at a time… and presumably you can top it up from base load after demand peaks for the day, right?

In the equatorial and desert regions they’re talking about, I think both seasonal supply changes and demand profile might be more consistent than, say, dreary cold parts of Europe..

Sure.

But no one is claiming that there will only be 4h-storage