Post by andy on Apr 3, 2023 17:55:04 GMT
Apr 3, 2023 17:20:05 GMT zou said:
Apr 3, 2023 11:05:11 GMT andy said:
Perhaps turning water into synthetic fuel to burn in cars doesn't fit that cycle and could result in there being less water on earth? The idea for synthetic fuel seems to be to get hydrogen from water and carbon dioxide out the air to make hydrocarbons with the same molecular structure as petrol or diesel. (For example Porsche newsroom.porsche.com/en/2023/sustainability/porsche-perspectives-sustainability-interview-karl-dums-31632.html)
The pilot they are running is in Chile, IIRC, so they can use wind and solar energy instead of the dirty German electricity. At $40 a gallon it has a way to go before it is cheap enough for the masses though.
Can't remember which source suggested the amount of energy required to make synthetic petrol was in the region of 4 or 5 more energy than might be required for an electric car to travel the same distance. Or summat like that....diesel was 7 times more.