Can someone tell me what the spike in the graph really means.
Usually would mean you went up a long hill.
Or sat in traffic, due to accident or construction slowing your progress over a couple of miles, with the heater or air conditioning at full blast...
Long hill, that would make sense.
My car was in a Tesla service center for about 10 days. When I got it back, I saw the spike. The area in Florida where the service center is located is flat. No hills. Since the spike lasted for about 21/2 miles, my first impression was that my car had been abused by someone at the center.
I questioned management several times about it.
One response I received was: "....the 900KW spike that you see is from the cars electronics consuming energy while at a standstill. Because the energy consumed happened while the vehicle is at a standstill, the graph is unable to represent it in a fashion other than as large spike in a very short timeframe / distance."
Has anyone else had this experience?
That is typical.
Numerous occasions owners have reported such behavior upon warming the interior on cold, wintry mornings, or when enduring the traffic on the I-405 parking lot in Los Angeles. It is an 'instant update', through time, relative to speed. The energy used over two minutes and two miles is shown differently than the same energy used over twenty minutes and zero miles.
Since the spike lasted for about 21/2 miles, might it be reasonable to think that the car was driven flat out for that distance?
I think people are conflating consumption over time with consumption over distance. The graph is of distance. That could have been hours at idle.
A graph of consumption over time would have shown a moderate drain over a long period of time. You lose that context with the consumption per mile.
Having the Prius with the "consumption over time" model, I think I will much prefer the "consumption over distance" approach when my 70D finally arrives.
I had such a spike myself 6 weeks ago; traffic was at s standstill for hours on a hot day when the Chesapeake Bay Bridge, Rt 50, was shut down for hours. Hot day, full AC, O miles = humongous spike.
When you look at the energy graph it always displays consumption as a sort of sliding window average. I have looked at this a few times on my car. I estimated the sliding window is about 2 to 3 miles on the 30 miles history screen, about 1 mile on the 15 mi screen, and about a quarter mile on the 5 mi screen. Try it yourself switching between and nailing the to pedal or going up and down steep hills. Anything that makes you power meter swing wide.
Sitting still for a while with AC or heat on could do that. Look at the same on the 5 mile window the spike is likely much narrower and steeper.