miguelpdv Posted January 8, 2016 Share Posted January 8, 2016 Good day.I'm running a simulation of a 24V standalone system, powered by 2 x 60 cell modules wired in parallel. The ambient temperature of the design site is typically 28°C at noon, so the PV panels working temperature should be well above 50°C on full power hours.I was wondering if the model takes in account losses caused by the battery charging voltage not being in the maximum current area of the IV curve of solar panel. I think that the temperature is forcing the panel to work at the right part of the MPP knee of the IV curve, hence not being able to deliver full Imp. This effect should be stronger with low insolations.I've run a reference simulation with the same power but using 36 cell panels wired in series, and surprisingly I got less power (about 11%) with the 36 cell panels when expecting the opposite behaviour. For your reference I have the newer version of PVsyst (6.39). Please tell me if the model is taking this parameters in account, or I should modify some parameters to get a better estimate.Thanks, and regards from Mexico! Link to comment Share on other sites More sharing options...
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