Hello, For reference, I'm using V6.73. While modelling with SolarEdge equipment, I'm finding that in the system definition tab, the array nominal power becomes derated, such that overload losses & production values appear to be inaccurate. Example: screen shot attached - Ex. 144x 365w module = 52.6kWp DC; Inverter = 43.2kW AC; DC/AC ratio = 1.22, yet... - In the Array Design for SolarEdge architecture area, the Pnom ratio shows 1.13 and Overload loss shows 0.1% - Note: 'Reference for sizing' box indicates that there's a Max. power of 678W/optimizer (acc. to best clear sky conditions). The behind the scenes calculation that arrives at the 678 W / optimizer seems to be causing the discrepancy. Equipment spec'd: - Hanwha Q Cells, Q.Peak L-G4.2 365 (2017): 144 pcs. - SolarEdge P730-US: 2 modules in series, 1 module in parallel - SolarEdge 14.4kW inverter; 8 optimizers in series / 9 strings in parallel