The total rate at which power is used by humans worldwideis approximately 15 TW (terawatts). The solar flux averagedover the sunlit half of Earth is 680 W>m2 (assumingno clouds). The area of Earth’s disc as seen from the Sun is1.28 * 1014 m2. The surface area of Earth is approximately197,000,000 square miles. How much of Earth’s surfacewould we need to cover with solar energy collectors to powerthe planet for use by all humans? Assume that the solar energycollectors can convert only 10% of the available sunlightinto useful power.
The total rate at which power is used by humans worldwideis approximately 15 TW (terawatts). The solar flux averagedover the sunlit half of Earth is 680 W>m2 (assumingno clouds). The area of Earth’s disc as seen from the Sun is1.28 * 1014 m2. The surface area of Earth is approximately197,000,000 square miles. How much of Earth’s surfacewould we need to cover with solar energy collectors to powerthe planet for use by all humans? Assume that the solar energycollectors can convert only 10% of the available sunlightinto useful power.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter34: Maxwell’s Equations And Electromagnetic Waves
Section: Chapter Questions
Problem 66PQ: The average EarthSun distance is 1.00 astronomical unit (AU). At how many AUs from the Sun is the...
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The total rate at which power is used by humans worldwide
is approximately 15 TW (terawatts). The solar flux averaged
over the sunlit half of Earth is 680 W>m2 (assuming
no clouds). The area of Earth’s disc as seen from the Sun is
1.28 * 1014 m2. The surface area of Earth is approximately
197,000,000 square miles. How much of Earth’s surface
would we need to cover with solar energy collectors to power
the planet for use by all humans? Assume that the solar energy
collectors can convert only 10% of the available sunlight
into useful power.
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