[extropy-chat] Nuke 'em
dirk.bruere at gmail.com
Sun Oct 23 23:20:50 UTC 2005
On 10/23/05, Damien Sullivan <phoenix at ugcs.caltech.edu> wrote:
> On Sun, Oct 23, 2005 at 09:38:36AM -0500, Greg Burch wrote:
> > Yes, but your comment begs the question of from whence comes the
> > electricity. This is the issue I have with what I think of as
> No, Dirk said "then totally renewable becomes feasible"; I infer he meant
> solar/wind/tides/whatnot becomes useful for baseline power.
> Alternatively, accept less than 80% efficiency and just suck in more
> 10 billion people solar-powered at 50 kW/capita (input energy, not out of
> wall) is feasible, I think. My model had been 20 kW toward electricity and
> the rest to make synthetic hydrocarbons from CO2 (at 11% efficiency, a bit
> higher than plants, *cough*) but if one assumes 10% overall that gives 5
> kW of
> usable power, which is still First World (at least in good climates)
> though not US level.
> Depends on what that 5kW encompasses.
I (my house) use less than 5kW/hr per day of electricity.
However, you have to factor in transport energy and energy required to
produce food and material goods.
Not sure how that adds up.
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