I read the theory that he'll try to force his solar energy and storage systems to miners. Sounds great, right? Mining without using fossil fuel? Until you realize that just shifts all energy consumption from miners to manufacturers.
Won't happen. Solar energy is far too inefficient and expensive as compared to other sources of energy, in addition to its intermittent availability. It is impossible for a large farm to be powered by solar panels and achieve any profitability.
You mean like shooting a car into space? Whatever the "ethos" is, it cares more about attention than the environment.
Probably. He wants the general public to think that he is in fact promoting both the sustainability of man kind as well as space exploration. You'd get far more bad publicity by doing something like this, and any publicity is really never always good publicity. Despite what people think, all of his actions so far were purely business decisions.