modbus Self-Use calculate or register?

[prodigy9999]

In the Cloud app I can also see the value Self-Use (total per day or monthly.
How can I get this value over modbus? register?
How ist this calculated?

[wills106]

What Inverter are you using?

If SolaX does any of the disabled by default sensors match? Such as "E Charge To..."?

[prodigy9999]

X3-Hybrid-G4
How do you calculate it in your integration? perhaps it is the same like "solax house load"?

[prodigy9999]

Perhaps you can help, I can't find it anywhere.