I've taken countless road trips in my Model S. Aprox 85k miles (of my total of 136k) were all long road trips using Superchargers. Before every road trip I plan it using mostly EVTripplanner.com. I juist want to get an idea of the whole trip. I don't expect it to be very accurate. This weekend we took another road trip and this time I wanted to see how close the planning tool was compared to reality.
The planner predicted 5:25 driving and 1:25 charging time.
Reality was: 5:30 driving and 1:22 charging.
I think that's as close as it gets! The speed multiplier is an important factor. I tend to go a little faster than the average so I enter 1.1. I have also created my own EV model. It's basically just the normal Model S 85 that I own but I adjusted the usable energy capacity of the battery to match my degradation. The other values are just best guesses and that's good enough.
The planner predicted 5:25 driving and 1:25 charging time.
Reality was: 5:30 driving and 1:22 charging.
I think that's as close as it gets! The speed multiplier is an important factor. I tend to go a little faster than the average so I enter 1.1. I have also created my own EV model. It's basically just the normal Model S 85 that I own but I adjusted the usable energy capacity of the battery to match my degradation. The other values are just best guesses and that's good enough.