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Best way to monitor home EV energy consumption

Discussion in 'Supercharging & Charging Infrastructure' started by rsg123, Dec 2, 2019 at 11:05 PM.

  1. rsg123

    rsg123 Member

    Joined:
    Jan 1, 2018
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    Location:
    Sacramento
    I have a 14-50 outlet which charges my Model S. I’d like to know exactly how much energy is used by this circuit vs. home use.
    What’s the best way to do this? I have SmartThings so something that integrates with that would be good.
     
  2. user212_elijah

    Joined:
    Aug 26, 2019
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    Location:
    US
    • Informative x 1
  3. rsg123

    rsg123 Member

    Joined:
    Jan 1, 2018
    Messages:
    374
    Location:
    Sacramento
    Thanks, the dumb meter is actually looking really good. Just a running total. I don’t need scheduled charging etc.
     
  4. user212_elijah

    Joined:
    Aug 26, 2019
    Messages:
    346
    Location:
    US
    It installs by piercing through your black and red wires (assuming those are the colors you have, and installed right) which go through the holes. Pierce the insulation just enough to get power to the box but not enough to damage the wires (with power off, as screws will be hot). Neutral (white) and ground bypass the box.

    It has a shield for the hot screws, but is supposed to be installed in a box of some kind or in the wall. I got some extra wire (make sure to get the right gauge) to make up for cutting it.

    I've got a spreadsheet that I update when I feel like it. I don't really need to know my exact "monthly" total.
     

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