Electricity is usually billed per kilowatt-hour. Therefore, if these panels are to be compared to buying power from the grid, one would need to know their electric production in watts per unit time. If they generate a watt of power, thats great - but is it a watt per minute (pretty good), a watt per hour (not very good), or a watt per day (almost worthless)?
Do you understand what a watt is? Watt is a unit of power. Power = Energy/time. You are billed in kWh since this represents the total amount of energy you used over the billing period. So take the number of kWh you were billed and the number of hours in the billing cycle to get the total power you used. We shall call this X.
This number, X, then represents the number of Joules/s you used on average. To figure out how much area you need in solar panels, take the W/m^2 factor and multiply by the number of square meters needed to obtain X watts.
Watt (ha) you really are concerend about is peak power, the maximum in the distibution of you power usage. Like when you turn the oven on to heat your house.
The sun basks the earth in 250,000 TW of power. The global burn rate is somewhere between 20-40 TW currently. So Extracting 20-40 TW from 250,000 TW comes to 0.008 - 0.016 % of the total solar power flux.
Hmmm.... Charge a spare laptop battery with the main laptop battery. I don't think you follow the laws of thermodynamics. Unless you meant when the laptop is already on the ac adaptor, which still is silly since there is no need to worry about running out of juice.
usb batteries are pointless no matter what.... unless you are raking in the cash for selling a novelly stupid idea.
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Electricity is usually billed per kilowatt-hour. Therefore, if these panels are to be compared to buying power from the grid, one would need to know their electric production in watts per unit time. If they generate a watt of power, thats great - but is it a watt per minute (pretty good), a watt per hour (not very good), or a watt per day (almost worthless)?
Do you understand what a watt is? Watt is a unit of power. Power = Energy/time. You are billed in kWh since this represents the total amount of energy you used over the billing period. So take the number of kWh you were billed and the number of hours in the billing cycle to get the total power you used. We shall call this X.
This number, X, then represents the number of Joules/s you used on average. To figure out how much area you need in solar panels, take the W/m^2 factor and multiply by the number of square meters needed to obtain X watts.
Watts/minute = J/(smin).
Watts/hour = J(sh).
Watts/dat = J(sday).
Watt (ha) you really are concerend about is peak power, the maximum in the distibution of you power usage.
Like when you turn the oven on to heat your house.
The sun basks the earth in 250,000 TW of power.
The global burn rate is somewhere between 20-40 TW currently.
So Extracting 20-40 TW from 250,000 TW comes to 0.008 - 0.016 % of the total solar power flux.
Yup, the cooling is going to be drastic.
What does gay have to do with it?
Too busy in the mens room supporting the hardware?
Oh wait, would that be so closeted?
Proc. Natl. Acad. Sci.
The journal says enough. Not bunk science!
Hmmm.... Charge a spare laptop battery with the main laptop battery. I don't think you follow the laws of thermodynamics. Unless you meant when the laptop is already on the ac adaptor, which still is silly since there is no need to worry about running out of juice.
.... unless you are raking in the cash for
usb batteries are pointless no matter what
selling a novelly stupid idea.