How much solar energy comes from the sun?

Answer 1

The amount of energy varies and depend on factors that include distance from the equator, height above sea level and of cource weather. An average of 1,000watts per meter (peak) is usually quoted for engineering purposes and there are an estimated 6 hours of peak exposure. To get the energy per square foot, take 1000watts and multiply by .093 This results in 93 watts per square foot. The amount of energy varies and depend on factors that include distance from the equator, height above sea level and of cource weather. An average of 1,000watts per meter (peak) is usually quoted for engineering purposes and there are an estimated 6 hours of peak exposure. To get the energy per square foot, take 1000watts and multiply by .093 This results in 93 watts per square foot.

Answer 2

About two-billionths. :)

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Answer #2:

I've worked that out a couple of times in the past, after encountering
that same question here. Of course I can't find any record of either of
those, so if I want to confirm or dispute the answer above, I have to
go through it again.

I get 4.6248 x 10-10.

That's 0.46 of one billionth of it, or 46 billionths of one percent of it.

Another way to say it is that the power that reaches the Earth from the sun
is 93.3 dB below the amount that the sun radiates.

= = = = =

Now, my son looks over my shoulder and says that we're both wrong ... neither #1 nor #2
has answered the question that was asked. And he's right !

The question asks "How much energy radiated by the sun ..." . It does NOT ask
"How much of the energy radiated by the sun ..." . We instinctively stuck the words
"... of the ..." into the question, and answered with a fraction / ratio.

The answer to the question "How much energy ..." has to be in joules. It's something like
the average solar constant multiplied by the area of a disk that looks like one side of
the Earth from far away.

That would be (1.361 kw/m2) x (pi x [6,370,000 m]2 ) = 1.735 x 1014 KW = 1.735 x 1017 joules per second.

Answer 3

That number is the ratio of (the area of the half of the Earth facing the sun) to

(the area of a sphere whose radius is 93 million miles).

Radius of earth . . . 4,000 miles

Area of Earth . . . 4 (pi) R2 = 64 x 106 pi square miles.

Area of the side facing the sun . . . 32 x 106 pi square miles.

Radius of the sphere at Earth's orbit . . . 93 x 106 miles

Area through which the suns radiation is pouring = 4 (pi) R2 = 3.46 x 1016 square miles

The ratio is . . . (32 x 106) / (3.46 x 1016) = 9.25 x 10-10 = roughly 1 billionth of it.

( -90.3 dB )

Answer 4

Fusion of Hydrogen atoms. Most of the suns mass consists of hydrogen. There is enough pressure and temperature in the sun for these hydrogen atoms to come together and join to produce helium atoms. This nuclear fusion reaction also releases a vast amount of energy in the form of solar radiation.

Answer 5

There is a lot of energy that is produced and coming from the sun. This energy helps to feed plants.

Answer 6

Energy that is produced or coming from the sun is called solar energy. Solar energy enables warmth within the atmosphere and enables daytime heating.

Answer 7

The Sun is an important factor when it comes to living on Earth. Earth receives roughly 1152 kilowatts of energy in a 24 hour period.

Answer 8

Enough solar energy hits the earth every second to power the earth for a week.

Answer 9

The son gives out about four-septillion watts constantly

Answer 10

solar and radioactive power