I'm just going to leave this here....
http://poststuffx.entensity.net/051710/flash.php?media=oil.flv
http://poststuffx.entensity.net/051710/flash.php?media=oil.flv
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Nope.
Not even close.
Current solar panels put out about 10 watts per square foot.
That is about 28,000 MW - and that is peak, probably only get that 4-6 hours per day.
...but lets assume we can get peak value, 24 hours a day.
That would be 672,000 MW-hr generated per day.
The USA currently uses 10,609,857 MW-hr per day... so that 100 square miles running at peak power 24 hours a day (impossible) would cover about 5% of our electricity usage.
Now if we make realistic assumptions, like say 8 hours per day of full power generation - we're talking more like 225,000 MW-hr per day.
At that generation rate it wouldn't take 100 square miles to generate our usage - it would take approximately 4,700 square miles of solar panels.
Heck - even if you could get 24 hour generation - you're still talking about almost 1,600 square miles of solar panels.
according to u.s. eia, the entire world uses 15 TW of power. from what i've read regarding solar panels, a standard is a "150 w" panel, which is roughly 1 m^2 in size. simple math yields a requirement of 100,000 sq km, or a square 316 km per side, to power the entire world for all its energy needs.
if gard's original estimate had been a square 100 miles per side as opposed to 100 sq miles, his estimate would have been pretty much right on, from the numbers i'm seeing from various sources.
of course, you also have the problem of distribution.
...see that's what happens when you're just a dumb bassist without an engineering degree...
jt nailed EXACTLY what I was trying to say (I was even THINKING 100 miles on a side when I typed "100 square miles"). Mea culpa on the poor explaination, but this is precisely what was intended in my post.
And yes, distribution is a major issue, but it is NOW. Losses due to transmission inefficiency are outrageous.
according to u.s. eia, the entire world uses 15 TW of power.
from what i've read regarding solar panels, a standard is a "150 w" panel, which is roughly 1 m^2 in size. simple math yields a requirement of 100,000 sq km, or a square 316 km per side, to power the entire world for all its energy needs.
Huh? Do you mean 15TW peak? 15 TW-hr?
Last I knew the number was more like about 18TW-hr.
Assuming you get full power out of it, 24 hours a day.
Realistically - you probably get nothing for 10 hours a day, and less than 100% power for over half the remaining day.

Excellent point...which is why we need orbital power stations.
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In other news, it seems Bobby Jindal's "we'll do it ourselves" attitude is spreading. Maybe this should have been done from the start.![]()
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Mike
Excellent point...which is why we need orbital power stations.
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As sci-fi an idea as that may seem - I suspect it will eventually be exactly what we do.
I vaguely remember a book with that theme. It wound up being used as a weapon.
I'm just going to leave this here....
http://poststuffx.entensity.net/051710/flash.php?media=oil.flv
Why we haven't seriously begun pursuing it already is beyond me.
So ... dump Green Acres into the Gulf?