[ExI] Wind, solar could provide 99.9% of ALL POWER by 2030

[Rafal Smigrodzki]

On Fri, Jan 18, 2013 at 12:27 PM, Eugen Leitl <eugen at leitl.org> wrote:

>
> So whenever you're using a derived, secondary source of energy,
> especially one that is limited (because it's a nonrenewable resource, or
> is fundamentally limited, as biofuel due to HANPP) it always
> make sense to consider tapping the primary.

### No, not always. Only if the secondary is close to running out or
if the primary becomes cheaper (in a very general sense of being more
economically efficient). I am reasonably certain that we *could* use
solar and wind to supply 99.9% of all power by 2030, and we *could*
hop on one leg instead of walking on two but, why?

Rafal