Yep. As well, building one big station was going to be so expensive that nobody was willing to invest in it. Reduce the price tag and becomes possible to bring investors onboard. Another benefit is that beaming 1 megawatt of energy is far safer, being not much different than the energy released by a microwave oven. A larger (say, 10 megawatt) beam would require cordoning off a hefty bit of real estate to ensure safety.