Unfortunately that's false. Photovoltaic's take more energy to manufacture than you get out of them in their useful lifetime. If you're "on the grid", and use PVs, you're burning more fossil fuel (and MORE emissions) than plugging in to the wall. PVs only benefit comes when not near a powersource to charge.</strong><hr></blockquote>
Duh... there is no form of energy that takes as much (or less) energy to produce. Where there's Heat there's loss ( and Environmental impact ).
That is unless you have a Cold fusion reactor making your energy.
Conversion of any kind of energy to any other will require some kind of manufacturing. My Solarcells can outlive me, thats why I have them listed in my Will.
Li-ion and Li-Poly batteries will also outlive all of us, but they will have only been useful for a very small fraction of that time. <img src="graemlins/oyvey.gif" border="0" alt="[No]" />
Duh... there is no form of energy that takes as much (or less) energy to produce.</strong><hr></blockquote>
On the scale of eons, you would be correct. Energy from the sun falls on the earth over millenia which plants use to grow so that they may die and decompose so that we can find their carbon remnants in the form of coal, oil, and natural gas.
But it DOESN'T take more energy to get that coal/oil/natural gas than the energy we get out of it--else we couldn't get it in the long run. But you can't mine the minerals, transport them to the factory and run a PV factory purely from solar cells. You WILL expend less oil than the oil you accrue getting oil. To make a long example short, to make a solar cell, you need all the energy from that cell PLUS fossil fuel energy.
But you made me digress. Your statement:
"I'll stick with my two solar panels thankyou very much. They don't produce any emissions either. <img src="graemlins/smokin.gif" border="0" alt="[Chilling]" /> "
Is completely false. Solar panels not only are NOT emissions free, they produce MORE fossil fuel emissions than if you plugged your Powerbook into the wall!!
Comments
this is not good.
<strong>
Unfortunately that's false. Photovoltaic's take more energy to manufacture than you get out of them in their useful lifetime. If you're "on the grid", and use PVs, you're burning more fossil fuel (and MORE emissions) than plugging in to the wall. PVs only benefit comes when not near a powersource to charge.</strong><hr></blockquote>
Duh... there is no form of energy that takes as much (or less) energy to produce. Where there's Heat there's loss ( and Environmental impact ).
That is unless you have a Cold fusion reactor making your energy.
Conversion of any kind of energy to any other will require some kind of manufacturing. My Solarcells can outlive me, thats why I have them listed in my Will.
Li-ion and Li-Poly batteries will also outlive all of us, but they will have only been useful for a very small fraction of that time. <img src="graemlins/oyvey.gif" border="0" alt="[No]" />
packs more energy and spontanéous combustion
<strong>
Duh... there is no form of energy that takes as much (or less) energy to produce.</strong><hr></blockquote>
On the scale of eons, you would be correct. Energy from the sun falls on the earth over millenia which plants use to grow so that they may die and decompose so that we can find their carbon remnants in the form of coal, oil, and natural gas.
But it DOESN'T take more energy to get that coal/oil/natural gas than the energy we get out of it--else we couldn't get it in the long run. But you can't mine the minerals, transport them to the factory and run a PV factory purely from solar cells. You WILL expend less oil than the oil you accrue getting oil. To make a long example short, to make a solar cell, you need all the energy from that cell PLUS fossil fuel energy.
But you made me digress. Your statement:
"I'll stick with my two solar panels thankyou very much. They don't produce any emissions either. <img src="graemlins/smokin.gif" border="0" alt="[Chilling]" /> "
Is completely false. Solar panels not only are NOT emissions free, they produce MORE fossil fuel emissions than if you plugged your Powerbook into the wall!!