I'm a student and I can't find this in any of my texts just wonderning if anyone knows the relationship or if there is a direct relationship. Thank you in advance.
2007-03-22 20:04:34 · 4 answers · asked by Anonymous in Environment
The sunlight impinging on Earth has been measured at 1,366 watts per square meter.
2007-03-22 21:53:29 · answer #1 · answered by Helmut 7 · 1⤊ 0⤋
Firstly, as a point of clarification, the Watt is a measure of power, not energy. Power is energy per unit time (rate of energy production/comsumption).
I have seen reports that estimate the power of solar rays contacting Earth to be about 150,000 terawatts (where a terawatt is a trillion (10^12) watts). Note that is only the power that reaches Earth, which is a tiny fraction of that produced by the entire Sun.
To give you an idea of how much power that is, current consumption of energy in the world (of all types, including electricity and fuels for automobiles) proceeds at a rate of about 15 TW, or 1/10,000th the rate at which solar energy contacts the Earth.
2007-03-22 20:16:59 · answer #2 · answered by Anonymous · 0⤊ 0⤋
A watt is already a fee. you won't be in a position to offer "watts in keeping with hour". You produce potential, and the fee at which the potential is produced is the flexibility, which will properly be measured in units of watts. A ninety-watt photograph voltaic panel produces ninety watts, additionally prevalent as ninety joules in keeping with 2nd.
2016-12-15 06:57:08 · answer #3 · answered by bustamante 4 · 0⤊ 0⤋
Ancient recollection is that you get a maximum of 3KW/M^2. That would be indicident at noon at the equator on a clear day. Converting it into something useful is the problem.
2007-03-22 20:08:31 · answer #4 · answered by ZORCH 6 · 0⤊ 0⤋