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[EnergyPlus_Support] Cable Losses



Hi everybody,
I am simulating a PV of 6 kWp and I have the weather data of the place.
I have inserted the PV model and the inverter but the production is 20% 
higher than the real one.
I think the problem are in the cable, he DC cable are 30 meters and the 
AC are 20 so I would like to add these parameters to the simulation, 
where can I find some parameter to decrease the efficiency of the system 
based on the cable losses or other factors that are not considered in 
the simulation?
thank you everybody
Fabiano



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