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Amount of solar energy per day in a given location

by ondrejjosef
Tags: energy, location, solar
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ondrejjosef
#1
May17-14, 07:33 AM
P: 2
Hi,
I'm trying to find equation for an amount of solar energy that given place (of some latitude) on Earth's surface receives during a given day. I know it can be derived by using basic geometry, but I just need it for some application and don't want to waste time and risk mistakes. So if you know, where I could find this, I would greatly appreciate a reference. Thanks in advance for any help.

Josef Ondrej
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adjacent
#2
May17-14, 07:44 AM
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P: 1,459
That is impossible to calculate.
The amount of solar energy reaching the Earth depends on many factors. Think about clouds.
ondrejjosef
#3
May17-14, 08:00 AM
P: 2
My mistake, sorry for not specifying the question more accurately. You can assume that solar output is perfectly homogenous, constant, Earth is a perfect spehere with no atmosphere. Basically I'm just interested in the effect of varying angle from which you can see the Sun from that place.

russ_watters
#4
May17-14, 08:49 AM
Mentor
P: 22,234
Amount of solar energy per day in a given location

The US government keeps records/models of this: http://rredc.nrel.gov/solar/old_data...991-2005/tmy3/
enorbet
#5
May18-14, 04:15 PM
enorbet's Avatar
P: 132
If instead of tables you prefer equations, this should help

http://www.pveducation.org/pvcdrom/p...lar-insolation


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