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OpenEV Used Power Vs Consumption

Hello, from what I can see, on the OpenEVSE mqtt message I have the actual power entering the car! Or is that The actual power consumption? Because Both values my be different, the actual power that is consumed on the grid, will have some wastes and then only some amount will enter the car. Is this correct? What is the value presented on the OpenEVSE MQTT topic? 


If its the power that is charged, how can I get the power that is consumed to produce that energy? Do I need a separate sensor on the input line (like openenergymonitor)?


Thank You

1 Comment

OpenEVSE measures the power flowing through the charging station  The current is measures and the voltage is assumed. The accuracy is not revenue grade but good enough for situational awareness.

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