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Everything posted by Vishnu

  1. Heya Team, I observed on the inverter config page that the module surface orientation is different in the new PVSol version. As you can see in the image, I have two module surfaces facing Nord-west and Nord-ost but the inverter config shows only Nord-west Is this something that has actually been changed in the new version or is it a bug? Thank you!
  2. Hey Valentin Team, I tried simulating one of our PV systems with Fronius ECO 27 inverter, which as per its Datenblatt, has max input voltage of 1.000V The modules I used are SOLON R-WF 120p.2/370 with max Voc of 40,81V There is a warning that max Voc of inverter is crossed when I used 24 modules (24*40,81 = 980V) on one string. What am I missing here?? Thank you!!
  3. To my knowledge, the system operator receives Ausfallvergütung only under special conditions, like when Einspeisevergütung or Direktvermarktung fails. Even then, the operator has to apply for Ausfallvergütung to receive the compensation. So these are very special cases and I don't think it's possible to calculate in PVSol
  4. Hello Lukas, May I ask if you can share a screenshot of Financial analysis page or the project report? May be we can find out something Just curious to see what might go wrong -Vishnu
  5. Hey there, There was similar question on this forum already. Hope it helps
  6. Main input parameter for this is "electricity tariff from grid" which one provides as input
  7. Vishnu


    Hey Marcel, There is no undo function available in PV*Sol. I remember one of the admins mentioning that implementing undo function is pretty complex. We can consider ourselves lucky should it be on the wishlist -Vishnu
  8. Hallo there, I was wondering if there is a possibility to add power price (€/kW) in addition to energy preis in PV Sol or is this still on your wish list? Thank you, Vishnu
  9. You can get rid off them by setting the distance to edge to zero in "Edge distances"
  10. Hello Lukasz, You can only do that by selecting a 3ph inverter instead of a 1ph inverter. -Vishnu
  11. Hi Miguel, To my knowledge I haven't seen any option in PVSol to set the life-time of the battery. May be PVSol considers the degradation of the battery which inturn impacts the efficiency and eventually the energy that can be stored in the battery. -Vishnu
  12. Hallo PV Sol Team, Ja I know it's hard to get back to work after such a good Berlin weekend So talking business, we are planning a 15kWp system with 2xSungrow Hybrid HV SH6.0 RT inverters each of which gets one LG Chem Resu 10 batterie. However this combo is not readily available in PV Sol. I was wondering if there is an option to select only LG Chem batterie under batterie section as I can already simulate the system with the inverter. Also is there a possibility to simulate a system with two inverters having one batterie each? Thank you, Vishnu
  13. Hello Ragy, I checked your system's configuration and I see there are 17 modules in a string and the modules have NOCT voltage of 39,8V which under NOCT gives 676,6V string voltage. The inverter's MPP voltage range is 570-850V. So as you expected it is possible that the string voltage is only slightly above DC start voltage of inverter (620V) To my knowledge, this impacts the efficiency and hence is high power loss due to MPP voltage range. This is only my opinion and the PV Sol team can give a better explaination Regards
  14. Hey Ricardo, These are two different modules and there is no reason for me to believe that both the modules have similar anti-reflection coating and cell-surface polishing for Total Internal Reflection (TIR). I also see some difference in Module inclination and orientation losses. Of course it is marginal but this still could show some impact on reflection losses. -Vishnu
  15. Hello Reint, It is hard to say why there is no significant difference between system with SolarEdge and Huawei inverter without info about your project. Have you tried comparing the Energy Balance sheet of both the systems? Optimizers would definitely reduce impact of shaded modules on the whole string. But Energy Balance would give better understanding Thanks, Vishnu
  16. Vishnu


    do you think the max DC input of the inverter is limiting the number of modules that can be connected to it during auto-cabling?
  17. hey there, You may wanna check this thread from the Forum You can try to add modules from different buildings to "Define Module Area" and then configure them together. Hope that helps. I also see in some part of your simulation, you have only module in east-west pair. Someone was asking for his in the Forum -Vishnu
  18. Vishnu

    Numbers on module

    Hey there, It follows the order Inveter.MPPT.String.Module Hope that answers your question. Cheers!!
  19. I am afraid there is no concrete answer to your question. As long as you manage to convince your customer, I would say, any degree of shading is accepted
  20. Thanks Martin for a quick reply. To be honest, I did not simulate this back then. I only re-ran it today. The original simulation file was from Feb 2020. I can tell you that. I used PV Sol v7 from April 2020 to re-run it today. I wish i could provide more info.Btw, i've also sent you a private message with files attached But ja, changes in simulation core explains it Thank you
  21. Vishnu

    PV Sol best images

    i tried to record a similar video for one of our projects but the animation is available only for year 2017. is it possible to select the current year. i know, this may not make a big difference but, you know, marketing people can be really annoying to get these details right. no offense to marketing people reading this ?
  22. Hello Valentin Team, We simulated a projekt a couple of months back and ended up with 909 kWh/kWp Spez. Jahresertrag. But when i re-run the same simulation today, to my surprise, it increased to 929 kWh/kWp. I know year 2020 has been crazy but is it really this crazy!!!??? ?? Tja, i checked the energy balance results and i could see significant difference in multiple sections. Could you please help me understand why there is a difference here? Do you think it is because of some updates you have made or am i missing something that's changed in my simulation? I would be happy to send you the simulation file and the older pdf report in private message. Sorry i don't have 2 different pvsol files, it's the same file that i re-ran VG, Vishnu
  23. I am not sure about diffused radiation model but it is a good pratice to activate minute values when DC/AC ratio is above 1,15 and with batteries. It almost takes forever for the simulation but still
  24. Hallo Valentin Team, Hope you all are enjoying the summer !! Apparently, zero grid injection systems are performing pretty bad, especially in case of unbalanced loads. We have a system performing worse than what we expected from simulations. Our theory is that this could be becasue of unbalanced load distribution on the phases where one of the phases has very low consumption which is consequently limiting the generation as the inverter has balanced output on all its phases I simulated with curtailment at feed-in point but this did not help us in preparing for what's about to come. Is there any way to make our simulations reflect such scenarios in the future? Of course, we did not use the customer's actual consumption profile in the simulations. Do you think that would have made the difference? Please see the gap between consumption and generation values in the attached pic. There is always a huge buffer between consumption and generation to ensure zero grid feed-in Grüße, Vishnu
  25. Hello again, Are you people already enjoying yourselves as restrictions are being removed in Berlin?? ? So, we are planning a system with two SolarEdge inverters(SE10K + SE7K) and want to add two batteries (2*LG Chem 10). PVSol currently allows me to add two batteries only to one inverter. Of course, we would use hybrid inverters Could you please let me know if there is a way to add one battery to each inverter? Thank you,
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