Department of Agriculture
#22
(08-15-2012, 08:57 PM)kandrathe Wrote: A good rule is you can get the equivalent of about 42% of maximum output per 12 hours of sunlight - less on cloudy days. So a one square meter solar panel should provide 0.42 x 12 hours x 150 watts = 756 Watt-hours per day.

The US consumed 396155900000000 Watt-hours in 2009. So, 396155900000000 Watt-hours / 365 days) / 756 (assuming 12 hours of sun every day) works out to 1435659564 square meters, or ~554.3 square miles. That works out to a square area about 23.5 miles across.

...

The approximate cost per square meter is £250 or about $390. That works out to a project cost just for the panels of 1435659564 * $392 = ~ $562 billion.

So, lets for simplicity we need about $750 billion every 20 years to build and maintain the infrastructure to provide power for about 312 million people. That's $750 billion / 20 years = $37.5 billion per year, and for 312 million people is about $120 per person per year.

Not sure about the rest of the numbers, but I'm pretty sure you're low by 10x, because the US consumes approximately 4 petawatt-hours in a year, not 0.4.

-Jester
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Messages In This Thread
Department of Agriculture - by Taem - 08-11-2012, 01:44 AM
RE: Department of Agriculture - by Jester - 08-11-2012, 11:21 AM
RE: Department of Agriculture - by Taem - 08-13-2012, 12:51 AM
RE: Department of Agriculture - by Jester - 08-13-2012, 10:35 AM
RE: Department of Agriculture - by Treesh - 08-12-2012, 01:33 AM
RE: Department of Agriculture - by DeeBye - 08-12-2012, 04:18 AM
RE: Department of Agriculture - by LochnarITB - 08-12-2012, 04:43 AM
RE: Department of Agriculture - by LavCat - 08-12-2012, 05:55 AM
RE: Department of Agriculture - by Maitre - 08-13-2012, 01:38 PM
RE: Department of Agriculture - by kandrathe - 08-13-2012, 03:34 PM
RE: Department of Agriculture - by Jester - 08-13-2012, 04:09 PM
RE: Department of Agriculture - by kandrathe - 08-13-2012, 04:30 PM
RE: Department of Agriculture - by Taem - 08-13-2012, 06:42 PM
RE: Department of Agriculture - by Mavfin - 08-13-2012, 08:56 PM
RE: Department of Agriculture - by kandrathe - 08-13-2012, 09:58 PM
RE: Department of Agriculture - by Kevin - 08-13-2012, 10:01 PM
RE: Department of Agriculture - by kandrathe - 08-14-2012, 01:41 PM
RE: Department of Agriculture - by shoju - 08-15-2012, 07:45 PM
RE: Department of Agriculture - by kandrathe - 08-15-2012, 08:57 PM
RE: Department of Agriculture - by Taem - 08-16-2012, 12:40 AM
RE: Department of Agriculture - by kandrathe - 08-16-2012, 03:28 AM
RE: Department of Agriculture - by Jester - 08-16-2012, 10:45 AM
RE: Department of Agriculture - by kandrathe - 08-16-2012, 03:39 PM
RE: Department of Agriculture - by shoju - 08-16-2012, 08:28 PM
RE: Department of Agriculture - by kandrathe - 08-17-2012, 02:47 AM
RE: Department of Agriculture - by eppie - 08-22-2012, 07:59 AM
RE: Department of Agriculture - by Lissa - 08-23-2012, 01:10 AM
RE: Department of Agriculture - by eppie - 08-23-2012, 09:21 AM
RE: Department of Agriculture - by Lissa - 08-24-2012, 01:47 AM
RE: Department of Agriculture - by eppie - 08-24-2012, 05:52 AM
RE: Department of Agriculture - by Lissa - 08-24-2012, 06:14 PM
RE: Department of Agriculture - by eppie - 08-27-2012, 02:24 PM
RE: Department of Agriculture - by kandrathe - 08-27-2012, 03:33 PM
RE: Department of Agriculture - by Lissa - 08-27-2012, 03:43 PM
RE: Department of Agriculture - by NuurAbSaal - 09-10-2012, 08:41 PM
RE: Department of Agriculture - by Lissa - 09-11-2012, 02:48 AM
RE: Department of Agriculture - by Jester - 09-11-2012, 04:30 AM
RE: Department of Agriculture - by Taem - 10-02-2012, 03:37 PM
RE: Department of Agriculture - by kandrathe - 08-23-2012, 10:09 AM
RE: Department of Agriculture - by Kevin - 08-23-2012, 12:44 PM
RE: Department of Agriculture - by eppie - 08-23-2012, 01:35 PM
RE: Department of Agriculture - by Kevin - 08-23-2012, 03:01 PM
RE: Department of Agriculture - by eppie - 08-24-2012, 05:36 AM
RE: Department of Agriculture - by Tal - 08-24-2012, 03:51 PM
RE: Department of Agriculture - by Jester - 08-24-2012, 04:21 PM
RE: Department of Agriculture - by Tal - 08-24-2012, 04:37 PM
RE: Department of Agriculture - by shoju - 08-24-2012, 06:48 PM
RE: Department of Agriculture - by eppie - 08-24-2012, 06:16 PM
RE: Department of Agriculture - by Tal - 08-24-2012, 08:51 PM
RE: Department of Agriculture - by kandrathe - 08-23-2012, 09:43 PM
RE: Department of Agriculture - by Hammerskjold - 08-23-2012, 11:54 PM
RE: Department of Agriculture - by kandrathe - 08-24-2012, 06:56 AM
RE: Department of Agriculture - by Hammerskjold - 08-24-2012, 05:21 PM
RE: Department of Agriculture - by kandrathe - 08-25-2012, 12:05 AM
RE: Department of Agriculture - by eppie - 08-25-2012, 06:30 AM
RE: Department of Agriculture - by kandrathe - 08-25-2012, 09:09 AM
RE: Department of Agriculture - by eppie - 08-25-2012, 12:56 PM
RE: Department of Agriculture - by shoju - 08-23-2012, 02:39 PM
RE: Department of Agriculture - by Hammerskjold - 08-23-2012, 08:10 PM

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