> You can play this game all day long
And you should, to be serious about CO2 emissions reduction. Otherwise, we're all just fooling ourselves.
If the BEV is running with their 2kw heating turned up full blast in addition to running down the road, and there was a heat loss of around 2-5% while charging the car then We’re still at around 3x more efficient in the BEV vs the ICE.
Then there’s the electricity supply which ranges from 0 refinement loss and 50% thermal efficiency (natural gas fired power plant) to NaN% for nuclear, wind and solar.
A BEV charging right this minute in the UK is consuming energy originating from 25% gas, 25% nuclear, 25% wind, 5% solar (its 6:30pm).
It could be more than 5x when you compare with ICE fuel supply / refinement / storage / delivery.
Right. Now factor in the losses in thermodynamic electric power generation to fuel the EV.
> We’re still at around 3x more efficient in the BEV vs the ICE.
Don't neglect the losses from generating that electricity, which is about 70%.
What? There’s 70% loss in the process of generating electricity? Where does that occur?
Coal is circa 20% of the supply in the US. About the same as nuclear or renewables.
You can play this game all day long, depending on which figure you want to land on. Efficiency is nice but the reason it hasn't mattered at all is that it is more about what is readily available and cheaply exploited.