[hpb42]

> A flywheel can provide frequency stabilisation, or it can provide energy storage, but it can't do both at the same time.

Ah, that's a good point to know. I thought flywheels could to both at the same time. Do they also help with keeping the load resistive? I guess their high inertial mass would add some inductance, which is how they stabilize the frequency?

Do you have some resources about this topic to share to a layman like me?