Hey Arthur...
...any thoughts on Gary's "hiddden agenda" of Project Prometheus - which is surely space-based lasers - and the relevance to power-sats. Ultra-efficient lasers would be ideal for power-beaming and swatting ICBMs. With a laser a power-sat could be parked at the Earth-Sun L1/2 points and not need a rotating core mast for the transmitter - pointing in one direction would do, with a bit of pointing ability in the optics.
Adam