What is the negative undefined energy in the table Usage Individual Devices, while their is no negative energy in the table Energy Usages?
The sum if your devices needs to be less than the total amount of energy into your home.
This is negative when this is backwards, and you say you have devices using much more energy than exists.
For example you have a pink device consuming nearly 3kWh at 9am, yet your grid input shows only 0.5kWh as your total pull from the grid. One of these measurements must be incorrect.
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Thank you, you triggered me where to find the problem and I have found it, so I could solve it!