Large Discrepancy in Total AC Power After Simulation

[Jherche]

Hi,

I'm modeling quite a large project where there are 18x SolarEdge SE100KUS inverters, all using C651U optimizers. I've modeled a total of 54 total units (33.33 kW each). The Global system summary accurately calculates 1800 kWac. However, after running the simulation, there is a very large discrepancy where total ac power comes out to 1699 kWac. How can this discrepancy be fixed? Thanks!

 

Edited 12 hours ago by Jherche

[Robin Vincent]

There is a known issue where the total AC power in the report is not accurate with SolarEdge subarrays.

This is due to the way the total is computed in the report, based on individual MPPT powers.

 

With SolarEdge and its specific way to attribute (and distribute) strings to inverters, the computation is sometimes incorrect.

 

This issue is on our roadmap, but as it does not impact the simulation results, it has been scheduled for a later version.