Dynamic adjustment of the correction table

Q&A and troubleshooting EVCS
1

Is it possible to modify the correction table used to display the correct power output? My primary goal is to adjust two specific values. The readings differ depending on whether the system is operating in off-grid mode or connected to the grid—likely due to a difference in impedance. I currently retrieve the generated kW figures (for reporting to my employer) using Node-RED, which works fine; however, the accounting department also requires a photograph of the external electricity meter. This creates a problem, as the values ​​show a significant discrepancy.

Any ideas?

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2

No, these values are stored in the evcs.

You should use the meters values to report to your employer. The EVCS (v1) has no builtin energy meter, the values won’t withstand any legal discussion of any kind, since you can modify the calibration factors at any time.

(In some countries it’s even required that a meter for that purpose is at least MID-certified)