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What do you mean by “heen en weer gespring”?
If you re-calculate the value every 15sec you are very sensitive to spikes (and cloud).
I use the Median over 1 minuut.
Still jumping, but every minute iso 15sec and averaging out spikes by the median
The resolution of steering is 1A SO you will always deviate a bit.
typically 1A x 220V= 220W plus of minus.
In another thread I shared my flow for my amina charger.
It works fine nicely arouns +/-220W as expected I
Even when the dishwasher disturbs it a lot by heating on/of
You can find that flow in this thread.
It also has the importe (TEF) posted there to import the flow in your homey
Mostly the same except for the dynamisch phase switching
