- cross-posted to:
- [email protected]
- cross-posted to:
- [email protected]
Alt text:
An idling gas engine may be annoyingly loud, but that’s the price you pay for having WAY less torque available at a standstill.
Alt text:
An idling gas engine may be annoyingly loud, but that’s the price you pay for having WAY less torque available at a standstill.
Density is relative to efficiency, and electric wins
What i cannot understand is people trying to defend something that is clearly worse,
Googling tells me that:
So the math here says electric gives you (0.97 * 77%) 0.75 MJ/kg output and gas gives you (46 * 30%) 13.8 MJ/kg output. Plus, as someone else said, spent gasoline no longer weighs you down.
I like the idea of electric, and I want to see it replace gas as soon as possible, but fair is fair.
Technically empty batteries weigh less than charged batteries.
Not that the difference is significant enough to tip the scale though.
How do you think about hydrogen cars? They have better fuel density, and hydrogen is renewable.
The argument that I’ve heard is that electric cars aren’t actually cleaner because of the pollution caused by mining the minerals required for the batteries.
I’m sorry but I’m too lazy to dig up links to back up my claim. But you are correct in that electric vehicles pollute far more being produced than combustion engine cars, however the electric vehicles gain that back over it’s lifetime if your charge from mostly non-fossil sources. The figures I have read says that over the lifetime of a car, electrics output 70% less CO2 than combustion cars, and that includes the production of each of the cars.