garf

Hi, Apparently I noticed that simulation result from the version 7.3 can achieve daily specific yield 3.9 in the project site which I know it is unlikely to happen based on our experience and monitoring data. And then I do the simulation using exactly the same setting but version 7.2 (my colleague laptop), and we found that the yield is about 10% lower compare to the version 7.3. The simulation result of version 7.2 seem closer to the actual result. May I know why is this happen? attached is the loss diagram of both cases. Thanks in advance for clarification...

I questioned the huawei sale person regarding power sharing between MPPT. and He told me their inverter doesnt has power sharing between mppt. But when i asked their engineer if I can put CSI 550Wp x 22PV/string for both input of the MPPT. And he said can as long as the number of PV/string is same for both input. So, I am also unsure now. Wonder if anyone psychically doing this in field...can share your experiences? thanks

Hi, what if the manufacturer said their inverter can't have Power sharing between MPPT? if that the case, can we still share the power between MPPT for PVsyst simulation? thanks

I see.. thanks for informing. actually if I combined orientation 2 and 3 via manage orientation, what would be the impact on the shading loss? thanks

Greeting, I have a question on setting the orientation. Say I have 3 orientations like the following. When I want to have mix orientation, why I can only have Mix #1 and #2? How to make the setting so that I can have say Mix #1 and #3 or Mix #2 and #3? Thanks in advance for advices.

Got it... thanks for sharing

Hi All, We have an existing 10MWp Solar farm which was using Central Inverter to convert DC to AC. This farm already 9 years old, and recently we replaced the Central Inverter with 10 units of Huawei SUN2000-100KTL Inverters. The farm already up and running with the new inverters now. The PV Panels are BENQ 320Wp old PV Panels as the plants was built 10 years ago. Some faulty PV Panels already replaced with CSI 545Wp PV panels (about 1MWp of it). I am trying to run a pvsyst the compare the performance. My question is, we have certain zone of PV panels whereby one of the 100kW inverter is paired with 9 strings x 14PV per string = 40.32kWp. As a result, the inverter is strongly oversized and PVsyst not allow to simulate. But in actual, when i check from Huawei Fusion, the inverter has no issue running at strongly oversized condition. I would like to know what setting I need to make in pvsyst so that the system allow my to simulate for the said situation? thanks in advance for the advices.

thanks for pointing out. just noticed that the pv panels i selected is CSI-545W which has different size compared to the pv panel i used in pvsyst... Now it works.. thanks

Hi All, My 3D model created by using sketchup, and imported to Pvsyst using 3ds file. My system has 3 orientations, and I am able to simulate the shadow loss using linear shading calculation. But when I tried to run a more accurate shadow loss analysis using the "module layout". I have the following problem, when I click "set all module" nothing happened. thus I am not able to configure the next step. Can anyone enlighten me what I did wrong in this setting? thanks in advance...

Thanks for enlighten me. if you don't mine, can I also check with you is it possible to zoom the near shading picture of the PV module section? thanks in advance

Hi All, can check with you how to do the setting to display my module layout in Pvsyst report? thanks

ok, noted.. thanks for sharing ...

Hi, thanks for sharing your view. How about if I balance the Power over the MPPT like the following, end up each MPPT is about 1.39 DC:AC? Some of the MPPT power go up to 17.39kW though.... Appreciate your view on this... thanks again

I see, so as long as I balance the DC/AC across the input to say below 1.5, it is acceptable right? thanks again

Hi, thanks for your time reviewing. It is a grid tied system, no battery involved.