How Much Power Do I Need?

[Lock]

Recently Fechter wrote:

When considering any kind of EV, one of the first steps is to determine how much power your vehicle will need to attain the desired speed.
The power requirement is mainly a function of speed, wind resistance and hill climbing power.
As speed increases, the wind resistance increases exponentially. Below 10mph, wind resistance can be largely ignored.

Not if there is a strong head wind!!!

tks

Lock

 

[Toorbough ULL-Zeveigh]

Question: How much power do I need?

Answer: More!



Fechter refers to relative wind resistance which includes headwind.

 

[xyster]

Question: How much power do I need?

Answer: More!

Answer More? OK, I will!

Answer: Only enough to get the job done as quickly and efficiently as need be, plus the extra to cover the margin of uncertainty.

 

[fechter]

Thanks Lock,
I suppose one might not consider that unless it's pointed out.