I'm not a power electricity guy, but I think of the power grid as an absolutely massive flywheel, electrically speaking. I don't get how the electric company c

I'm not a power electricity guy, but I think of the power grid as an absolutely massive flywheel, electrically speaking. I don't get how the electric company could introduce surges, even if they wanted to. (I have 200A service, which I don't use much of.)