Sorry, I do not understand why this occurs, please give us more information.
In short words, the key to this solution is to measure such parameters directly
inverter output power(w)
inverter yield energy(kwh)
feed in power(w)
import energy from grid(kwh)
export energy to grid(kwh)
and do some calculations ,then show them on the dashboard
load_power = inverter_power(always positive) - feedin_power (positive: export energy , negative : import energy)
selfuse_energy = yield_energy-exported_energy
load_energy = selfuse_energy+grid_consumption_energy
So, please check whether the energy meter had been installed in the correct position and whether the five key parameters are measured correctly.
If you still have questions, please give us more information about how you install your energy meter and how you confirm the five parameters are measured correctly.