There are plenty of deserts etc. that can be filled with solar panels. Those could generate LNG gas which could fuel cars, ships, airplanes, etc, and be used fo

There are plenty of deserts etc. that can be filled with solar panels. Those could generate LNG gas which could fuel cars, ships, airplanes, etc, and be used for electricity in times the sun doesn't shine. The only issue here is cost, because you need to put in 3 times as much energy as you get out. So even though solar & wind is cheaper than any generation method now, it has to get 3 times as cheap as alternatives. So the trend of it getting cheaper and cheaper has to continue, but I'm sure we're getting there eventually.