Re:Ultralight lithium-sulfur batteries for electric airplanes
by asdfadsfgfdda on Wednesday August 19, 2020 @04:37PM
(#24216066)
A Model 3 is smaller than the average car, it should be compared to something like a Honda Accord hybrid. Both have a similar cabin volume of ~100 ft^3. The fuel economy for a hybrid Accord is 48 mpg, or 760 Wh/mile.
The Accord is also $10k cheaper, presumably that is because the Model 3 requires more materials and more embodied energy.
Re:Ultralight lithium-sulfur batteries for electric airplanes
by mulmen on Wednesday August 19, 2020 @05:19PM
(#24216672)
> The Accord is also $10k cheaper, presumably that is because the Model 3 requires more materials and more embodied energy.
Do economies of scale and manufacturing expertise factor in to "embodied energy"?
Re:Ultralight lithium-sulfur batteries for electric airplanes
by dmos62 on Thursday August 20, 2020 @08:17AM
(#24222424)
What are the energy requirements and emissions for just building the vehicle? I've heard rumours that it's non-negligible when considering total emissions that a car will have caused.
Re:Ultralight lithium-sulfur batteries for electric airplanes
by 1958325146 on Thursday August 20, 2020 @11:00AM
(#24223978)
Page 9 of https://www.tesla.com/ns_videos/2019-tesla-impact-report.pdf has a chart for that (Average Lifecycle Emissions in New York State (gCO2e/mi)).
Electric: 54 in manufacturing, 74 in use
Gas: 45 in manufacturing, 420 in use
With a car, unless you have a specific use-case where you are driving 200+ miles a day, an EV is a no-brainer when it comes to efficiency in operating cost as well as emissions and overall energy use.