Solar power satellites made a lot more sense back when solar panels were expensive. If the launch costs were lower, then would get the most bang for efficient p

Solar power satellites made a lot more sense back when solar panels were expensive. If the launch costs were lower, then would get the most bang for efficient panels by launching them into space and getting more utilization from them. Solar panels are now so cheap that the expensive part is mounting them. There are more efficient panels but they aren't worth the cost. The result is that can put panels on a much larger area.