solar power satellite

The geostationary-ness depends on the usage of the satellite and has nothing to do with the solar power.

For this purpose, there are motors which orient the panels towards sun.

For Example even ISS is solar powered and not even remotely GS.

Possibly you are talking about the theoretical solar power satellite which collects energy and transmits it to a receiving station on Earth? This type of satellite has been discussed for decades, but has never been built.

If the satellite is not geostationary, then the satellite's solar panels can always be kept in the sun and facing it at the optimum angle. However either the Earth-bound receiver or the satellite's transmitter would presumably have to move (yes?) in order to maintain the energy transmission. And once the Earth rotated enough, the receiving station would move out of the line of sight. The satellite would then have to start transmitting to a 2nd station that is located at a spot on the other side of the Earth which is just rotating into range.

Plus as the transmission beam "moves" across the sky it could be annoying to keep aircraft from passing through the airspace that the beam is passing through. It's not necessarily harmful to pass through the beam, but I assume just for safety it would not be done.

If the satellite was geostationary, it would be easier for the Earth-bound power receiver and/or the satellite' power transmitter since neither would have to move to track the motion of the other. However the satellite's solar panels would have to be constantly moving in order to face the sun at an optimum angle. I don't know how practical such constant motion would be over a long period. And for half of the day the satellite will be in darkness behind the Earth.

Probably we would be better off with a series of many geostationary satellites, yes? That seems to offer the best balance of reliability (no motion) and convenience (no moving beam to go around).

But of course I defer as always to the much greater wisdom of the CR4 experts in such matters.

This concept is ruled out- since even lasers are not powerful enough to transmit the generated electricity effectively into earth (effective means good enough to economically power here) and then the electricity by itself can not be transmitted (check a thread on wireless transmission of power)

The solar panels are always used to provide power for the satellite to feed itself.

I understand. As I said it is a theoretical thing. But for someone writing a science-fiction novel or perhaps someone who just wants to think about the concept to waste a little of a boring day, it is an interesting question, yes?