Comment Re:Thhe idea isn't new (Score 1) 234
The power factor control in a synchronous condenser comes from the voltage regulator. It varies the field current to vary the output voltage. Maybe they don't need that so they are using a cheaper excitation system which isn't capable of voltage control, which is why they call it a flywheel rather than a synchronous condenser.
The other benefit of synchronous condensers is that they contribute fault current. It's hard to protect systems with low fault current because faults can look like loads; this device is probably doing that as well.