Using a home ChargePoint 240

Discussion in 'Prime Plug-in Charging' started by ed4271, Sep 28, 2019.

  1. ed4271

    ed4271 Member

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    I was wondering if someone could explain the graphic screen grab of the charger. My confusion is with the power and the energy usage. All i know is when the charge session is over I have 36.6 EV miles. Thanks for any help. Screenshot_20190928-131416_ChargePoint.jpeg

    Posted via the PriusChat mobile app.
     
  2. jerrymildred

    jerrymildred Senior Member

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    Not sure what's confusing you. Power is how fast the electricity passes through the meter (kW). It's like gallons per hour in plumbing. Energy is how much electricity passes through (kWh). That's like gallons in plumbing. If you'd used 3.5 kW continuously for one hour, it would have been 3.5 kWh. But you used 3.5 kW for 40 minutes. That's 2/3 of 3.5 kWh, which comes to 2-1/3 kWh, or 2.32 as it says on the screen shot.

    Why it says 45 minutes with 2.61 kWh below that, I have no idea since I don't have a Charge Point.
     
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  3. Clark_Kent

    Clark_Kent Junior Member

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    I have a ChargePoint EVSE and the information you see in the box to the right of your graph is as follows:

    Power = the electrical power being passed to the vehicle. This data point is point in time.
    Energy = is the energy transmitted relative to time. This data point is cumulative.
    Duration = the time elapsed for the charging session. This data point is cumulative.

    The information at the bottom is the duration of the charging session (45 minutes) and the quantity of energy delivered (2.61 kWh). This ties out because the power delivered for this session (3.5 kw) for 45 mins is approximately 2.625 kWh.
     
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