gbolabs / energymonitor

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Solar production != Solar Consumption #36

Open gboder opened 1 year ago

gboder commented 1 year ago

Currently the graph display three lines

  1. The grid consumption resulting from the evolution of the 1.8.1 and 1.8.2 values from the Energy Meter
  2. The solar injection resulting from the evolution of the 2.8.1 and 2.8.2 values from the Energy Meter
  3. The solar production resulting from the Ws value retrieved from the myStrom switches connected to the panels.

The problem lies by the 3 value, this is misleading in the graph. We stack the grid and solar trying to demonstrate the energy consumed and place, on the y-negative axis, the energy injected into the grid. However the value we should stack on top of the grid consumption is not the raw solar production but rather the difference between the solar production and the energy injected into the grid. This would exactly represent the quantity of energy, consumed, produced by the solar panels.