Quote:
Originally Posted by ispom
there is the term „net energy gain“:
http://en.wikipedia.org/wiki/Net_energy_gain
http://de.wikipedia.org/wiki/Erntefaktor
it means, how much energy one really wins,
take the energy which produces a plant during its life span and subtract the energy which one had to spend for production evenly this plant.
in this respect the Votovoltaics score completely badly. It is therefore the by far most expensive energy.
And if one could not use the cheap energy from conventional power stations for the production of the photocells, solar power would be still many more expensive ….
or differently expressed: while a modern Votovoltaik plant needs 100 months to work in order to bring the energy back needed for itself production, a modern nuclear power station needs only 1 month.
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Thank for the links
.
Its like a real estate investment being expressed in years taken to recover capital. Lets face it the sooner you get into the black the better I understand that...So our problem is to do better than what is there at the moment
. Finally the return on investment controlls the game
. I understand that
. Seeing your post I thought I had better get those sausages out of the fidge
cooking with electricity is convenient but I like the inefficient fuel to cook them ..some nice dry iron bark (wood) but down here I dont think you can use a fire.. not sure on that.. but all b.b ques seem to be gas.
Thanks again for the links and the sausage reminder
.
alex
alex