Hi Team,
I have performed two different simulation with Sungrow 3437 kW central and Huawei 215 kW string inverter.
Can you please clarify why inverter loss over nominal power is more in central inverter (0.78%) than string inverter(0.31%)?
Sungrow central inverter Project AC capacity(501.8 MW) is more at 45 Deg C than Huawei string inverter(487.5 MW) and Maximum site ambient temperature is 30.2 Deg C, therefore I believe temperature degradation should not be an issue.
Project capacity and details as below. If you need anything further please let me know.
Module
Inverter
Max Ambient site Temperature
Inverter rating @ 45 Deg C
Project AC Capcity @45 Deg C in MW
Project DC Capacity
Inverter Loss over nominal inv. Power
Inverter Loss during operation
Canadian Solar, 665 [Wp]
Monofacial
Sungrow, 3437 kW
30.2
3437 kW
501.802
670 MWp
0.78%
1.34%
Canadian Solar, 665 [Wp]
Monofacial
Huwei, SUN2000-215KTL
30.2
195 kW
487.5
670 MWp
0.31%
1.55%