400 mile electric RV

rlw999 wrote:

Timmo! wrote:
I am sure you believe what you are doing is the best thing for Mother Earth...just as I am.

If the BEV breakeven point (when BEV becomes GREENER than ICE) is around 100k miles...then for us common folks that drive less under 6k miles a year, we would have to drive the BEV 16 years (longer than the its life-cyle).

One size does not fit all.

For cars, there's considerable debate over exactly where that breakeven point is, which also depends on how your power is produced -- as power production shifts to renewables, the breakeven point is reduced:

https://about.bnef.com/blog/the-lifecycle-emissions-of-electric-vehicles/

The lifecycle CO2 emissions of medium segment battery electric cars produced in 2020 and used for 250,000 km would be between 18% and 87% lower than those of equivalent internal combustion engine vehicles in the five countries included in this report. The breakeven point is far sooner in France at 25,000 km, compared to 153,000 km in China. By 2030, all countries will see this emissions breakeven point occur far earlier.

Though I suspect that we're a decade away or more from RV's being available that will ever reach the breakeven point due to the (on average) low annual miles, and large battery packs that would be required.

And when the rubber hits the road, sometimes things just don't work out as promised.

How much land and how many turbines are needed to meet 100% of a country's primary energy consumption?

"If the average US wind power density of 0.90We m-2
was applicable to Germany, then devoting all German
land to wind power would meet about 70% of Germany’s
total primary energy consumption...

https://iopscience.iop.org/article/10.1088/1748-9326/aaf9cf/data

Power density of the chosen alternative power is the real challenge.

In Germany's case 100% of their land covered with windmills would provide only 70% of their energy need. Where does the other 30% come from?