Ricardo Posted October 30, 2018 Report Share Posted October 30, 2018 Good morning, I came across a funny result and I was wondering if you could help me make sense of it. I simulated two identical rooftops, one with an east-west configuration and the other one with the modules just laying flat (inclination = 0º) and guess what, the flat modules show a slightly higher yield than the others… The main differences between both simulations are as follows: Flat modules: 1.066,73 kWp (3.879 modules), 111% sizing factor, 0’1% shading losses, 1.417,91 kWh/kWp East-west: 992,75 kWp (3.610 modules), 103% sizing factor, 2’7% shading losses, 1.360,51 kWh/kWp Both have 16 inverters Huwaei SUN2000-60KTL-M0 (400Vac). The yield difference is 4’3% higher for the flat modules, while I would expect that east-west with inclination = 13º would produce more energy (even if it had a bit more shade). Any idea why this is happening? Does PV SOL simulate soiling taking into account more soiling for less inclined modules? I would really appreciate if you could give me some feedback. Thanks a lot! Quote Link to comment Share on other sites More sharing options...
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