On
29 July 2024 at 11:31 mgnbuk Said:
EVs are a partial answer to the oil problem.
No they are not. EVs may be a partial solution local air pollution issues directly attributable to ICE exhaust emissions, but that is about it.
Basically you won’t get Evs at all without a substantial oil input – the batteries require a product called needle coke, which is an oil product. The extensive HV cabling insulation is an oil product. They have gearboxes that require oil for lubrication. The steel used to produce them is refined in arc furnaces – the graphite electrodes used to produce the arc are an oil product. The semicinductors for motor control are processed through furnaces insulated with graphite insulation – oil product. No oil – no EVs !
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Nigel B.
Nigel’s list is of oil products used during manufacture, and ignores the carbon burnt whilst an IC vehicles engine is running. The latter is massive – about 20% of all Carbon Dioxide dumped into the atmosphere. In comparison, the amount of oil needed to make an EV is tiny. And oil not burned by IC engines becomes available for making plastics, fertilizers and a many other valuable products.
A chemist would raise an eyebrow at the assertion that only oil can be used to make graphite! True most of it is made from oil at the moment, but a proportion is made from coke made from coal, and it could be made from vegetables.
But Nigel raises a good point: what happens to our world when oil ceases to be cheap? I fear the assumption that the world’s natural resources are infinite is so deeply embedded as to have become holy writ. Head in the sand stuff, actually the world is changing under our feet. Alternatives have to be found, and I’m afraid the old-school are more hindrance than help.
Alas for small-c conservatives who can’t bear the demise of internal combustion and coal electricity, EVs have gone from being an expensive option with many shortcomings, to breaking into the inexpensive car market. Early days, but I think in 5 years time more Brits will buy EVs than ICs. In the same way, expect recycling and other ‘green’ measures to kick in. Not because ‘tree-huggers’ wish it, but because mineral reserves are depleting across the board, and the whole planet has been explored. Sadly for those who hate change, rising costs change everything.
Wait and see!
Dave