On 5/1/2015 5:24 PM, Russell Standish wrote:
On Sat, May 02, 2015 at 12:13:22AM +0200, Alberto G. Corona wrote:
I have to say that these 440 persons that die with solar energy is
compensated by a similar number of skin cancer victims that are saved,
since the entire surface of the country must be covered with solar panels
so there is no way to receive sun rays.
Something is awry in your calculation. You only need about 100,000
square km to provide enough energy to supply current world
consumption. That's a square about 300km along each side.
I get only 220km on a side assuming 15% PV conversion efficiency and 300w/m^2 average.
But we probably need to throw in another factor of two for service roads and cloudiness.
Brent
We can
comfortably fit one of those in our deserts outback with room to
spare. So Australia can clean up in the energy business? Not really,
as it would make more sense to site the solar array in the Gobi
desert. Actually, it would make far more sense to have whole bunch of
smaller arrays closer to where the consumption is, and to supplement
by alternatives such as wind and tidal, but the point remains we're a
long way from needing to cover the entire surface of the planet.
Cheers
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