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Home-Charging Rates Table for late-2019 Models X, S, and 3

Discussion in 'Supercharging & Charging Infrastructure' started by tps5352, Dec 5, 2019.

  1. tps5352

    tps5352 Member

    Joined:
    Oct 30, 2019
    Messages:
    55
    Location:
    Davis, California
    Comparative home-charging rates--using different Tesla connection devices--for seven current (Dec., 2019) U.S. Tesla car versions--for your review and correction as needed.

    Acronyms/Abbreviations:
    • M-X, M-S, M-3 - Models X, S, and 3
    • LR - Long Range version
    • PERF - Performance version
    • SR - Standard Range version
    • WC-wrd - Tesla Wall Connector (hard-wired)
    • WC-14-50 - Tesla Wall Connector (w/NEMA 14-50 plug; no longer offered by Tesla)
    • MC-5-15 - Gen 2 Mobile Connector (w/NEMA 5-15 plug; comes standard with new cars)
    • MC-14-50 - Gen 2 Mobile Connector (w/optional NEMA 14-50 plug)
    • CMC-14-50 - Corded Mobile Connector (w/NEMA 14-50 plug; optional)
    • Breaker (amps) - recommended protective circuit breaker size
    • Sust (amps) - sustained charging current amperage
    • (kW) - kilowatts (measure of power) (= [volts x amps] / 1,000)
    • (kWh) - kilowatt-hours (a measure of battery longevity)
    I wanted to add miles of range per hour (mrph) and time needed to fully charge. But those numbers may be subject to many interpretative variables (and at times contradictory claims on the Internet).
    ___________
    Notes:

    • The table was built using a limited, simple form of HTML code. If someone can suggest a better way to create a more fully-featured/formatted table (e.g., with centering, shading, etc.) in this Forum, please let me know.
    • Also, is there a way to make a future post interactive, so that it could be modified by others (Wiki-like)?






    --------------------------M-XM-XM-SM-SM-3M-3M-3
    DEVICEUNITSLRPERFLRPERFLRPERFSR
    --------------------------------------------------------------
    Battery(kWh)100100100100757554
    --------------------------------------------------------------
    WC-wrdA/C (volts)240240240240240240240
    ---------Breaker (amps)60606060606050
    ---------Sust (amps)48484848484832
    ---------(kW)11.5211.5211.5211.5211.5211.527.68
    --------------------------------------------------------------
    WC-14-50A/C (volts)240240240240240240240
    ---------Breaker (amps)50505050505050
    ---------Sust (amps)40404040404032
    ---------(kW)9.69.69.69.69.69.67.68
    --------------------------------------------------------------
    MC-5-15A/C (volts)120120120120120120120
    ---------Breaker (amps)15151515151515
    ---------Sust (amps)12121212121212
    ---------(kW)1.441.441.441.441.441.441.44
    --------------------------------------------------------------
    MC-14-50A/C (volts)240240240240240240240
    ---------Breaker (amps)50505050505050
    ---------Sust (amps)32323232323232
    ---------(kW)7.687.687.687.687.687.687.68
    --------------------------------------------------------------
    CMC-14-50A/C (volts)240240240240240240240
    ---------Breaker (amps)50505050505050
    ---------Sust (amps)40404040404032
    --------- (kW)9.69.69.69.69.69.67.68
     
  2. ewoodrick

    ewoodrick Active Member

    Joined:
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    4,841
    Location:
    Buford, GA
    Tesla has a version listed with the charging adapters
     
  3. tps5352

    tps5352 Member

    Joined:
    Oct 30, 2019
    Messages:
    55
    Location:
    Davis, California
    Yes, thank you for reminding me. I think you mean here:

    Gen 2 NEMA Adapters

    Tesla Charging Aadapter Mileage Gained Per Hour - 2.jpg
    (Dec. 5, 2019 screenshot)

    I initially had those pertinent data in my working Excel spreadsheet, but kept running into different values from otherwise reputable Internet sources. Also, is this Tesla chart somewhat over-simplified? Do miles of range gained per hour possibly vary among the three Model 3 versions, and possibly among Extended Range and Performance versions of the Models S and X? I'm not completely sure.

    Regardless, it sounds like the comparative variable of most interest to me is the one that can differ and fluctuate the most--i.e., the average time needed to "fully" charge (e.g., to a healthy 80-90%). Too many factors involved, not all of which can be controlled from day to day:
    • Size of battery array
    • Age of car/batteries
    • Condition/health of batteries
    • Type of on-board charger(s)
    • Charging software version and settings
    • Environmental conditions (temperature, etc.)
    • Charge starting point
      and so forth...
    ...in addition to model-version of car, power of home charging current, and the charge-connector hardware employed.

    All this may be purely academic. I am looking forward to actually experiencing the on-board software display (say in a Model X) which sounds like it will provide much accurate information about--and a lot of control over--charging.
     
  4. ewoodrick

    ewoodrick Active Member

    Joined:
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    Messages:
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    Location:
    Buford, GA
    I'm pretty sure that the rate of charge is basically the same for all configurations. The only difference may be for cars with dual chargers, which of course only applies to the 50A options.

    All of these are for non-Supercharger options. The differences in batteries only appear when Supercharging, else the limits are well below any of the battery maximums.
     
  5. srs5694

    srs5694 Member

    Joined:
    Jan 15, 2019
    Messages:
    992
    Location:
    Woonsocket, RI
    Yes, but by a very small amount -- probably beyond the (non-existent) decimal point in the whole numbers displayed in the chart. (I haven't crunched the numbers to determine the theoretical values for the different battery sizes and motor configurations.) Ultimately, the miles of range gained per hour will vary with your energy efficiency; and just like MPG figures on a gas car, that will vary with driving style, weather, terrain, etc.

    Another point is that Tesla erred in creating the Model 3 column of that chart when it comes to 120v outlets (NEMA 5-15 and NEMA 5-20) -- those should actually be 5 and 7 (or perhaps 5 and 6), not 3 and 4.

    Finally, these figures assume a 240v supply. In reality, any given location's voltage is likely to vary slightly from this -- you might get 235v or 245v and still be within spec. Some homes, and many commercial sites, even have 208v rather than 240v, and that will more significantly impact the charge rate, in both kW and miles of range added per hour.[/QUOTE]
     
    • Informative x 1

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