Could one million smart pool pumps store" renewable energy better than giant batteries?

As more wind and solar energy comes online, the people who run the power grid have a problem: how do they compensate for the variable nature of the sun and wind?

California plans to spend billions of dollars for batteries to even out the flow of power from solar and wind, much the way shock absorbers smooth out bumps on the road. But do they need to? Not at all!

In my research, I’ve found that we can accommodate a grid powered 50% by renewable energy without the use of batteries.