Solare Datensysteme Solar-Log - Manual (Page 107)

107
Pac Correction Factor
The correction factor can be adjusted yearly after receiving the statement from the utility company.
Example calculation:
Inverter 1 Inverter 2 Calibrated power meter
Total energy Total energy Total energy
259.12 kWh 305.22 kWh 550.55 kWh
Total = 564.34 kWh Deviation= 13.79 kWh
By comparing the values, you see that the inverters are more likely to display too much output.
Pac Correction Factor
Calibrated power meter total energy Inverter total energy
550.5 kWh 564.34 kWh
Calculated PAC correction factor in the example:
(550.55 kWh/564.34 kWh)* 1000= 975.66
Rounded PAC correction factor = 976