Quote:
Originally Posted by sendler
I don't understand how it is thought to be a more efficient use of energy to build out vast amounts of rebuildable energy generation hardware using vast amounts of embodied energy, in order to gather solar and wind energy, transmit it and store it in storage that was built with vast amounts of embodied energy, in order to light up lights that were made and installed into buildings or caves that were made with vast amounts of energy, to light up said lights with said captured rebuildable energy, to grow food for 8 billion people.
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Than to just let the sun shine directly on the food in a field whenever it will.
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Scale for 8 billion people. And embodied energy. Keep things in mind when anyone thinks we will build our way out of diminishing fossil fuel energy currently propping us up at 17 TW. 300 fossil slaves each to maintain a USA standard of living.
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1 barrel of oil at $70 has enough energy in it for the human power equivalent of 4.5 years of steady work. Magic stuff.
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Earth receives in one-hour,solar insolation,equal in energy to 1-years total global electricity demand.
In 42-minutes,Earth's wind energy equals total global electric demand.