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Musk : Model S battery cost less than half the cost per kilowatt hour of Roadster

Discussion in 'Energy, Environment, and Policy' started by EVNow, Jan 6, 2012.

  1. EVNow

    EVNow Active Member

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    Ofcourse, the big news out of the GigaOm interview with Musk is the Model X reveal. But here is something interesting. I've been thinking for sometime that the battery price will halve every 5 years. We had some discussions about it in a different thread.

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    The difference between selling S & Roadster is roughly 4 1/2 years (Feb-2008 to Jul-2012). Musk says the cost actually decreased by more than 50%. Ofcourse, it is possible he is comparing the cost now to something much earlier than Feb-2008. Still, this is instructive.

    If we take his 9% per year cost reduction, we get to 38% reduction in 5 years.
     
  2. Doug_G

    Doug_G Lead Moderator

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    He is probably also taking into account the automation they've added for building the packs, which could dramatically reduce their labor costs. The Roadster batteries were rather more hand-made.
     
  3. EVNow

    EVNow Active Member

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    That is possible - but I read that comment as raw cell costs that Tesla pays ...
     
  4. ckessel

    ckessel Active Member

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    It's not uncommon that big price drops simply come with automation and volume, so I'd assume it's some combination of factors.
     
  5. vfx

    vfx Well-Known Member

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    Not sure how "hand made" Roadster batteries are. On a tour of AC Propulsion they were semi automated for making prototype battery packs. I could not imaging Tesla would not have a robot assembly for repetitive tasks.

    On the dates you have to think about when they "locked in" The first Roadsters were out in 2006 so maybe they chose a form much earlier than when deliveries started.
     
  6. vfx

    vfx Well-Known Member

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  7. cinergi

    cinergi Active Member

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    I watched the "soldering" process for the Roadster packs at their facility (Deer Creek? I'm forgetting which one now) -- it was robotic. The entire process wasn't automated for sure, but the ridiculously tedious stuff was automated.
     

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