76mtbeggs Posted June 23, 2018 Share Posted June 23, 2018 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 Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now