Michalis Angeli

Hello, I did that you had said to me and I managed to import my csv file. Therefore, I face a problem right now. I have a consumption profile with annual consumption 65.2 kWh/yr. We can't materialize a bigger pv system from 40 kW. So we are going to build a pv system 38.8 kW, with a yearly production approx 51.3 Mwh/yr This project is such different because of two parameters, that I will explain below: 1. The production from pv system can't cover the whole consumption. 2. There is a limit in gird that forbids to consumer to inject the excess power to grid, when the consumption is lower than production. Therefore, I had calculated the yearly excess energy. This energy is the different between the energy that consumpted directly the time produced. So, I will need a storage system 20kWh. When I define this data in pvsyst i face some problems. I attach some pictures to be more clerarly the error. I would like to learn the limits in Battery input charge and Inverter battery to user's consumption. Thank you!

Hello, I want to define self consumption adding a csv file for load profile (hourly consumption). The templates are only per 15 minutes. I would like to ask if there is a template for load CSV file, with range 1 hour and not 15 minutes. Or if there is an empty template to full it, by me. Thank you.

Hello again! I am trying to develop a project with 3 differents orientations. And I face that problem. "The inverter is strongly undersized". However, when I select strings configuration I face another problem, as you can see in picture below. This is problem is due to that i don't use optimizer for this orientation that presented the subarray 3?

Very well, now is clear! Thank you very much!

Very well, so with phrase "Mixed orientations can only put different orientation in parallel, not in series" you mean that i can't have a big string in one MPPT with pv modules equal to addition of panels from two orientations. But i can have two seperates strings for each orientation? In this diagramm, I have 4 different orientations, so i have 4 seperates strings. Each inverter have 1 string in each MPPT input. When i try to define the mixed orientation that error appeare. So what is my fault? Maybe I don't understand somethin well enough to forward.

I have tried that you describe above and works. But i face other i can't define only 3 panels in one string to Inverter. That i want to say, is I am trying to connect pv modules with east orientation with south orientation in the same string in the same MPPT. However this isn't acceptable from PVSYST while i have two differents orientations i should do seperates subbarrays. For this reason I had tried to mixe the orientations.

Very well thank you very much. May that in future solved?

Thank for your answer. Have a nice day!

Hello, I would like to ask if there is the opportunity to Mixed more than 2 orientations. specifically, i have a project with 4 several orientations. However, while I am trying to define the system I see omly the option Mixed #1 and #2. As you can see in pictuer i attach below. is there the option to choose Mixed orientation #3 and #4 ? Or mixed orientation #1 and #3 for example?? Thank you!

Hello and happy new year! I am trying to attribute some pv panels in a string. And i recieve that Warning "the selected belongs to an array of orientation#1. It cannot be attributed to this tablem of orientation#2". My project has 4 several orientations. During system's definition, I choosed orientation mixed #1 and #2. The rest orientations had taken into account as seperates. How can I solve that error? I attach some screenshot about my project and warnings.

Thank you very much.

Hello, I would like to ask if I should define the LID in detailed losse, when I use N - type pv panel? I would like to clarify this. Thank you!

Dear Linda, I have changed my type of inverter, and i am trying to define the system and I face this problem "The array MPP Voltage may not attain the inverter minimum voltage for full power". Shoul I increase the modules in series? But if i go forward with this solution, the total number of modules will increase and i don't want this happen. Note that the problem is the same ony in sub-arrays #2,4,6 etc. In this sub-arrays I have 2 strings from 20 panels in each one.

Okay, thank you. Probaply i will use the Sungrow 125HX and in this way may get over the error.

Hello, I would like to ask ho to design a large scale pv system. I am working on a 1 MW (999.78 kW) project. More specific i use 1754 panels Trina 570 W and 8 inverters sungrow 250-HX. I am trying to define the system and i can't to define my strings in programm. I have 7 inverters with 18 panels in series in 11 mppt inputs and 21 panels in series in the last mppt input. And obviously, at 8th inverter i have again 18 panels series in 11 mppt inputs and the last one mppt input has 23 panels in series. Calculations: 18 * 11 + (21*1) = 219 panels in each inverter. These strings refer to the 7 first inverters. 18*11 + (23*1) = 221 panels in each inverter. These strings refer to the last inverter. This scenario, described above i would like to define in programm, but i don't mangage it. Although, the power sharing it's okay the message the inverter is strongly oversized, prevented me to proccess. I use the same panels in the whole system. The reason that i use subarrays is because i try to define my system as i described above. Is there any ohter way to design that system to avoid the solution with subarrays given that the orientation and azimuth stay the same. I attach some pictures from my system in order to help you.