Quote:
Originally Posted by Akrapovic
We went over this earlier in the thread.
1 - It takes more electricity to refine petrol than it does to power the car. The car will go further on that electricity as energy is lost (heat etc) during the conversion. When adding electric cars to the mix you have to remove the refining petroleum cost from it. Otherwise your numbers assume we'll all own both electric and petrol cars, and drive them both to the same amount we currently drive our petrol cars.
2 - Cars connected to the grid act as VTG storage systems. Connecting a car to a grid doesn't mean it now takes the maximum possible power from the grid at all times. It can even give back to the grid.
3 - Capacity is an issue if we all move to electric cars over 24 hours. In reality it's decades of movement. If you told 1970s us how much power we'd be using in 2020 then we'd also point out the grid wouldn't cope. But we didn't get there instantly.
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The energy used for refining petrol , [ measured in KWh ] , comes from burning oil , [ or gas ] , and refineries use their CHPs for electric power for their pumps & lighting . They then feed the excess into the grid . Overall the 6 major refineries in the UK are net contributers to the grid .
The idea that refining uses a lot of electricity is just total rubbish.
If the refineries shut down there would be less generation capacity on the grid .