Jump to content


  • Content Count

  • Joined

  • Last visited

  • Days Won


developer_mh last won the day on September 3

developer_mh had the most liked content!

Community Reputation

28 Excellent


About developer_mh

  • Rank

Profile Information

  • Gender

Recent Profile Visitors

1,588 profile views
  1. Hi Peter, if you want to connect several module areas together to one inverter, please have a look here: There is also a link to a post where this question is answered. Hope that helps, kind regards, Martin
  2. Hi UserPV, here is a description of how the data has to be formatted: https://help.valentin-software.com/pvsol/pages/system-type-climate-and-grid/meteosyn/#options Hope that helps, kind regards, Martin
  3. Hi Vishnu, the battery charge from the grid occurs when the battery management (charging strategy) requires a full or equalization charge in situations where the PV can't provide sufficient energy. Here you find more info on that topic: https://help.valentin-software.com/pvsol/calculation/battery-systems/charging-plans/ You can set the duration of these charging modes to 0 to disable them (in the 2nd example the equalization mode is disabled): https://help.valentin-software.com/pvsol/pages/battery-system/charging-strategy/ Hope that helps, kind regards, Martin
  4. Hi Tim, what you describe is a common use case for PV systems. You have a feed-in tariff that remunerates the energy that your system injects into the grid. You have a consumption tariff that you have to pay for every kWh that you draw from the grid. And then you have the "own consumption" when you can supply your electrical applications with the PV energy from your roof. Normally, the own consumption is free (and it should be, like you don't have to pay for the tomatoes that you grow in your garden), except for Germany, where you have to pay for that, too. But these are political discussions. But for these reasons, you can also enter a fee (and also a remuneration) for own consumption in the tariffs: In the results you then have all three assets: You will also find these results in the project report. Kind regards, Martin
  5. Hi Remu, a deletion of the climate data sets from the list is not possible, I am afraid. But what you see is only meta data of the available locations, so all these data sets don't take space on your hard drive. Only if you see a file name in the last column there is a real climate data file on your system. Kind regards, Martin
  6. Hi UserPV, in the case of the example project "Solar Park Neuhardenberg incl P90", we have module degradation as well as P50/P90 analysis. See these topics for more information: https://help.valentin-software.com/pvsol/pages/financial-analysis/bankability-p50p90/ https://help.valentin-software.com/pvsol/pages/pv-modules/module-degradation/ These two factors effect the amount of energy that is fed into the grid in the first year. If you set the P50/P90 bankability to 50 and the module degradation to 100% (no degradation), then hese two numbers are equal: You can play around with the factors to see how they influence the results. Kind regards and good luck, Martin
  7. Hallo Villamizar, der Lastabwurf ist nur bei Offgrid-Projekten (Anlagenart netzautark mit oder ohne Diesel-Generator) verfügbar. Kannst du genauer beschreiben, wie das Energie-Konzept mit Net-Metering und Batterie-Speicher "im Sinne des Lastabwurfs" aussehen soll? Vielleicht finden wir eine Lösung. Beste Grüße, Martin
  8. Freut mich, dass du die Lösung dann noch gefunden hast. Beste Grüße, Martin
  9. Hi UserPV, could you provide an example project file so that we can take a look at it? Thanks a lot, kind regards, Martin
  10. Hi Andrei, that would be here in the program options: Also refer to these pages for more information: https://help.valentin-software.com/pvsol/options/ Kind regards, Martin
  11. Hi José, do you mean you want to start a tariff zone e.g. on March 15 and end it on September 15? I am afraid that this is not possible right now. You can enter different values for each month, but the changes from one tariff zone to another can only take place at the beginning of the month. Kind regards, Martin
  12. Hi Remu, please correct me if I got your question wrong, but you don't have to calculate anything by hand if you want to place module mountings on flat roof tops. There is a dialog that helps you to get the inclination and orientation of the PV modules that you want: Then the program will determine the orientation to the mounting surface and enter the values accordingly: Hope that helps, kind regards, Martin
  13. @Vishnu: Thanks a lot for answering here! We really appreciate it a lot when you help out each other!
  14. Hi Alberto, Vishnu is right, the reason is the different relfection behaviour of the PV modules. There is a factor called IAM (incidence angle modifier) and is part of the data that is entered by the manufacturers: https://help.valentin-software.com/pvsol/databases/components/pv-modules/#further https://help.valentin-software.com/pvsol/calculation/pv-modules/reflection-in-module-plane/ And then, as Vishnu also mentioned, the module orientation and inclination of the PV modules has to be identical in order to be able to compare the results. From what I see in the energy balance that you attached, there is a difference between the two systems (one with -3.61 kWh/m² and the other with +2.48 kWh/m²) Kind regards, Martin
  15. developer_mh


    Hi again, maybe I am getting something wrong, but I think you just have to enter the resulting subsidy values for feed-in and own consumption in the according fields of your tariff, linke so: Prices are in €/kWh, so you get 0,083 €/kWh of fed-in (delivered) energy and 0,058 €/kWh for own consumption. I will attach an example project file with that tariff that you see here so that you can try it out. Keep in mind that the percentage of own consumption will be a result of the simulation, you don't have to enter it manually. Kind regards, Martin PVSOL 2019 R10 project with SDE tariff model from Netherlands.pvprj
  • Create New...