How many BTU's does the Sun provide us with daily?

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How many BTU's does the Sun provide us with daily?

Minus the effects of weather, about how many btu's of the Sun's energy actually reaches us, by estimation.

2006-10-28 13:29:43 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space

2 answers

http://www.cbu.edu/~jholmes/N111/Part23/sld019.htm

2006-10-28 13:38:41 · answer #1 · answered by arbiter007 6 · 0⤊ 0⤋

About 1 kW (or 1 BTU/sec) per square yard reaches the gound. The Earth collects an 8000 mile diameter of sunlight for 1.6 x 10^14 square yards so the whole Earth picks up about 1.6 x 10^14 BTU/sec or 1.3 x 10^19 BTU/24 hrs.

2006-10-29 02:08:41 · answer #2 · answered by Pretzels 5 · 1⤊ 0⤋