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The rule of thumb is that it requires an additional 7 miles (11 km) of range for each 1,000 foot of elevation gain. You might gain almost 6 miles (9.6 km) of range for each 1,000 ft of descent, as long as you don't have to use the friction brakes. Your example is only 6.2km according to Google Maps, so you would probably consume 20km of range for that trip.
Thanks for that bit of information. I live up on a hill/mountain as well and was wondering the same thing.
The rule of thumb is that it requires an additional 7 miles (11 km) of range for each 1,000 foot of elevation gain. You might gain almost 6 miles (9.6 km) of range for each 1,000 ft of descent, as long as you don't have to use the friction brakes. Your example is only 6.2km according to Google Maps, so you would probably consume 20km of range for that trip.
Where it becomes really interesting is how you charge at home, when you live at the top of a mountain.
If you start out with a full battery, then you will have to use the mechanical brake when you leave your home, as the battery cannot absorb any more.
Luckily, the Tesla Model S allows you to charge up to different levels, so just charge to 70% or 80%, whatever is needed to keep the regen active (I am not sure what charge level it cuts off, and I think it is gradual).
Where it becomes really interesting is how you charge at home, when you live at the top of a mountain.
If you start out with a full battery, then you will have to use the mechanical brake when you leave your home, as the battery cannot absorb any more.
Luckily, the Tesla Model S allows you to charge up to different levels, so just charge to 70% or 80%, whatever is needed to keep the regen active (I am not sure what charge level it cuts off, and I think it is gradual).
Exactly. I do not intend to charge to full as it is not recommended. so lets say if I charge to 80% on top of a hill, when I drive down, I assume at best it will go up to say 82 to 85%...
The rule of thumb is that it requires an additional 7 miles (11 km) of range for each 1,000 foot of elevation gain. You might gain almost 6 miles (9.6 km) of range for each 1,000 ft of descent, as long as you don't have to use the friction brakes. Your example is only 6.2km according to Google Maps, so you would probably consume 20km of range for that trip.
This is based on experience from Model S owners. However, if you break out the math to calculate the energy required to lift the mass to that height, it is well supported.Thank you! This is very helpful. Is this based on your experience or is this some calculation based on some kind of principles?
If the battery isn't too full, can you keep the speed down on the downhill, without touching the brakes? Just let go of the pedal on top of the hill and see what maximum speed it goes to.
I read somewhere that if the downhill is optimum descent gradient, then you can more or less keep the range, i.e. if you have 300 km range at the top, you will have just around the same at the bottom of the hill.
I wonder if anyone may know... perhaps a Roadster owner?
Say if one drives from Pacific Place to the Peak Galleria, according to Google Map, that's 6.2km.
What kind of 'range' do you think is realistic that will be used for this 1800ft climb?
I've found the tools at GreenRace to be very accurate in judging energy usage.
The UI leaves a bit to be desired but once you enter your waypoints and car configuration it works well.
Thanks! I just tried. Not looking good... this is only a 5km drive, and look!
Did you check the configuration of the car? I think they might default to a 60kWh battery.
This is with the 85kWh battery charged to 85%.
This is just a ~6km route! I am starting to worry!
Reverse the trip and see what the round trip uses in terms of kWh. Regen is wonderful.