Geostationary orbit is 36000km. Imagine the amount of power you would need to concentrate to be able to create a beam of energy small enough to hit a target tha

Geostationary orbit is 36000km. Imagine the amount of power you would need to concentrate to be able to create a beam of energy small enough to hit a target that is zipping by 36000km below. And these geostationary satellites would still be in the earth's shadow. Even the moon gets in the earth's shadow, and it's more than 10x the distance. You would need to have a bunch of satellites that can bounce energy to the target at low angles (so longer distances) which makes losses a lot worse and the problem even more complex. Others have also mentioned that the claim of achieving 60% efficiency at 1km looks dubious. Look at the pictures of the size of the antennae needed to basically run a couple of toasters... extrapolate even just a bit to compensate for the orders of magnitudes in range.