it seems to have lots of wires, does it make leccy as well as turn a wheel?
maybe the wires are control sensor links, they look thin for power output?
if it does not work it should be fairly easy to get it working as it looks "new" and un-degraded by time etc
be careful with precision engineering
it seems chunky so it might produce a decent amount of usable energy from enough low grade heat, be that solar or other source, to give the right temp at the hot side