Range.  Range.  Range.


===


We have all heard about range anxiety.
Remembering that our 'S' is a first year 2012, and back in those
days we manually determined our available 'range'
depending on variables we did not fully understand.  At that time
We had the good fortune to have been driving electric
(EVs) for almost a decade when the first year
'S' came available, so we had some background with the EV game.

Wind, rain, cold, hot, hills, traffic, and speed, etc. are just
a few variables we were starting to understand.  Superchargers
did not exist, although a few were just starting to
appear in some areas (but not our area).

The following SS was an attempt to track range, via Wh/mile
(watt hours per mile), the only real-time measure Tesla had in 2012
beyond the basic 'rated range' or 'ideal range'
calculations which did not take the aforementioned variables
into consideration.

This was a good thing, as we became adept at manually
calculating how far we could venture
in any given conditions, and today, we still use those manual calc's
from time to time when the vehicle's computers
seem to vary from our gut estimates.

All in a good days fun.  Copied below is one perspective on those
calc's we used back-in-the-early 'extended range' EV days.  It
is worth noting that we have always focused
 on 'idea range', using the speed limit and crusise control
as constants to predict range performance.

If you are interested in how these number play out, the
'Trip Results' button shows how we planned those
early cross country trips before the
computers automatically gave us the information
we needed.