People keep calling it a 'scam'
I'm not sure that's fair. This is just folks hunting around for any opportunity to generate energy as cleanly and renewably as possible, and as people seem to be hell bent on shouting about on the Mars/Space thread, there's apparently loads of cash floating around for research and development.
I entirely agree, that this is just "Micro" generation. Just like the many micro hydro system that have sprung up on hillsides all over wales. But every little helps.
I agree that the opportunities are probably limited and in sure the investors are over egging it.
Its so funny that on one thead, everyones exhorting the virtues of farting about with drones on mars and to hell with the cost and the rocket fuel, but lambasting those down here on earth who are casting around for solutions to the energy crisis and saying its a waste of money, a 'scam' even.