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PV for battery maintenance.

Discussion in 'Model S' started by cadethoerk, Jul 10, 2012.

  1. cadethoerk

    cadethoerk Member

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    How about including some PV cells in the pano roof to cover the battery maintenance electrical draw? That would keep the pack from ever reaching low volt damage. It would also look cool to see the PV cells through the sun roof. PV cells are getting so cheap and their efficency climbing every year. You could leave your car in long term parking for ever and that battery level would never drop. I don't know what the battery climate control draw is, but you might even have a little left over to charge the pack.
    What do you think?
     
  2. ElSupreme

    ElSupreme Model S 03182

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    Unless you park in a garage.
     
  3. doug

    doug Administrator / Head Moderator

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    And if you're parked long enough that you're worried about loss of battery capacity, you probably should be plugged in.
     
  4. vfx

    vfx Well-Known Member

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    See Nissan Leaf, Fisker Karma
     
  5. brianman

    brianman Burrito Founder

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    Specifically, see the owner review video where he does the math. It was something absurd like 500 years of leaving the car parked in 100% sunshine (read: not Earth) to recoup the cost of the solar cells.
     
  6. Doug_G

    Doug_G Lead Moderator

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    Solar cells on the roof of a car simply cannot produce a useful amount of electricity. It's too small an area.

    Anyone who puts solar cells on the roof is just doing "faux green" (looking at you Henrik).
     
  7. MikeK

    MikeK R#129, TSLA shareholder

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    I figure they can probably produce enough to ventilate the cabin, and that's about it.
     
  8. Citizen-T

    Citizen-T Active Member

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    Someday they will probably get cheap enough to make sense, but not this day.
     
  9. Doug_G

    Doug_G Lead Moderator

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    That's not really the issue. There's not enough energy received from the sun on an area that small.
     
  10. doug

    doug Administrator / Head Moderator

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    There's enough power to run a fan to circulate some fresh air in the cabin, but that's about it the only useful function, and you only need a relatively small panel for that.
     

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