4 ms·
The number of kWh of a pack is kind of a meaningless number for comparisons. A larger pack may actually be worse as it adds weight. They key numbers I want to
by mcot2 6y ago
The number of kWh of a pack is kind of a meaningless number for comparisons. A larger pack may actually be worse as it adds weight.
They key numbers I want to see are volumetric density (wh/l), gravimetric density (wh/kg), and cost ($/kwh) at the pack level and the cell level. Other key numbers are operating temperature ranges, max charge rate, maximum charging curves, idle energy loss or leakage, and overall efficiency of the vehicle (wh/mi) in many specific testing regimens (different speeds/air resistance, temperatures, and weather conditions.
- TheSpiceIsLife 6y agoRight, well you sound like an engineer. Articles like these are targeting retail investors looking to be ahead of the curve.
- mcot2 6y agoWell I am also a retail investor that just made 10x my money with Tesla by understanding the numbers and using the product.
- recuter 6y agoGentle reminder that the PE Ratio at the moment is: 1100
- jsight 6y agoNoone cares about the current P/E ratio of a stock like this. The numbers that matter are gross margins, net margins, and growth. I have a lot of issues with the valuation based on those numbers as well, but P/E is one of the worst metrics to use right now.
- arcticfox 6y agoAs a fellow TSLA retail investor up about 50x on an average cost basis, not 10x, I don't really put much weight in those credentials unfortunately. We could easily get owned here shortly.
- baybal2 6y agoVery true. There are EVs with inferior cell gravimetric power density, who in the end manage to have superior pack gravimetric density, and superior mass fraction (cell weight/car weight) than Model S.
- mcot2 6y agoYes exactly. Going further than that they may even choose a lower density for cost reasons. Elon responded to me about this when I tweeted him about LFP which have worse density but a lower cost, better thermals and safety. In China they are going to use LFP on the low cost SR+ Model 3.