i believe there are other source of Renewable energy waiting to
be discovered.
http://en.wikipedia.org/wiki/Renewable_energy
Saw Discovery channel on a New Energy Source - olive oil.
I recently watched something on Mad Labs (Discovery Channel),
about a boffin who used particles derived from olive oil which can
store and disperse energy very efficiently.
Apparently, when this technology matures, buildings can
literally self-power when you coat it with this stuff.
Basically, it functions by storing solar power in itself and
disperses it in a controllable manner.
On an unrelated note, I personally think that alternative energy
sources are not really immature. It’s just the traditional power
supply corporations being fearful at the potential loss of revenues
if these renewable energies eventually becomes mainstream.
Call it a “conspiracy mindset” if you want… but every day you
see more and more renewable energy technology being announce; but
where are the contributions from existing power players?
also, the Compressed air car.
http://en.wikipedia.org/wiki/Compressed_air_car
as if the car is "breathing". and air is everywhere.