Was going through this thread today, and something occurred to me. Even if one solar satellite sent two beams, realistically you're limited to two solar receiving dishes. I've also seen elsewhere that once you have the Fusion Reactor, you're set on power for a while. But you will still outgrow that capacity. Could you link lab research and factory production to producing actual solar arrays? This would supplement the Fusion Reactor by using direct solar energy, not just beamed microwave energy. Even on planets that don't get a great deal of solar radiation, more arrays would translate into more power.
The other thing is that we know that satellites have a finite lifespan. So, just like with the starship, couldn't you work into the scenario that any satellites that you brought with you would eventually die and fall to the planet? Your lab research could advance into satellite production, so you could launch as many satellites as you wanted to provide you with whatever you were seeking for.