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Showing content with the highest reputation since 05/06/2020 in Posts

  1. For us, a fixed (or at least globally adjustable) colour scale for the shade frequency analysis would be very useful. So that e.g. 5% of shading has always the same colour for every roof in every project. As it is right now, 5% or even 10% of module shading might appear as a vibrant green, just because a part of the roof (maybe even with no modules) might be shaded very strongly. Not ideal at all. This, along with an option to export these pictures with one press of a button would be very useful to our workflow. As of right now we have to screengrab each and every roof. Edit: exmple pictu
    3 points
  2. If anyone else have this problem, I fixed it by exporting the Blender model as an .obj file. Thank you.
    2 points
  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
    2 points
  4. Main input parameter for this is "electricity tariff from grid" which one provides as input
    2 points
  5. Hi PVSOL team. I have had a quick play with the 2021 update. Are there any further features soon to arrive? I was really hoping for a few helpful features in the 3D modelling. As 90% of the time all that is required is a rectangular building outline with a line down the centre for a ridge some minor improvements would really help- -Snap to 90 degrees (or a rectangle drawing tool) -Snap to centre point for drawing ridge (or an "auto-ridge" feature) Thanks James
    2 points
  6. Hey there, It follows the order Inveter.MPPT.String.Module Hope that answers your question. Cheers!!
    2 points
  7. Hi Argo! PVSol crashed on me at the first try. Also, when opening your model using MeshLab, I got an Error, but it did open. So I exported your file again as an .obj using MeshLab. This did the trick for me, was able to import no problem. I am unable to attach the file right now, but I am sure you will manage to do justthe same. Hope this helps. Regards, Frido
    1 point
  8. Hallo mlo, nein. Aber der Plan lässt sich als SVG exportieren und mit https://inkscape.org/ bearbeiten. Viele Grüße, Frederik
    1 point
  9. Hello Santiago Fondoso, I assume you took the System A7 or A7.1. It is correct that it is the total number of selected tanks, but connected in parallel. On your drawing you connected all systems in a row. Kind regards
    1 point
  10. Liebes PV Sol Team, Ich weiß wir sind lästig, aber ich würde mich ebenso über ein Lastprofil einer Klimaanlage freuen. Vielleicht kommt ihr in den nächsten Monaten dazu. Liebe Grüße, Jacob
    1 point
  11. Da ich das gleiche Problem hatte und das hier das erste Google-Ergebnis war: Bei mir lag es daran, dass das in Windows eingestellte Dezimaltrennzeichen gleich dem Symbol für Zifferngruppierung war (bei mir beides "."). Diese sollten natürlich verschieden sein. War also kein Fehler des Programms sondern des Anwenders.
    1 point
  12. Have both projects been through the simulation? For example, has the system with the missing info been paired with an inverter yet, and then simulated? I think you have to configure the system, and then simulate it, to make this comparison.
    1 point
  13. Ich habe über die Hotline Auskunft bekommen. Vielen Dank.
    1 point
  14. Hallo Niklas, vielen Dank für die Screenshots. Diese Artefakte sind "negative Schatten" (diese negativen Schatten entstehen häufig an Stellen, an denen sich Schatten überlagern), höchst unschön in der Darstellung und uns auch ein großer Dorn im Auge. Aber die gute Nachricht ist: Auf die Simulation und die Ergebnisse haben sie keinen Einfluss. Beste Grüße, Martin
    1 point
  15. Hi Nasr, 1. In this case it is https://notepad-plus-plus.org/, a free editor which can show "hidden characters" like SPACE, TAB, NEWLINE and so on. View > Show Symbol > ... 2. TAB is a special character https://en.wikipedia.org/wiki/Tab_key#Tab_characters So in this case the \t is represented as string: and here as character: Best regards, Frederik Diamond_Tyres-hour_fixed.dat
    1 point
  16. Hallo Lis, ja, das geht. Auf der Seite "Anlagenart, Klima und Netz", im Abschnitt Netz lässt sich die Einspeiseabregelung einstellen. Beste Grüße, Martin
    1 point
  17. Hallo Lis, die Wärmepumpenprofile wurden mit GeoT*SOL https://valentin-software.com/en/products/geotsol/ simuliert. Es handelt sich dabei mehr oder weniger um Beispielprofile, da es nicht möglich ist, einen bestimmten Anwendungsfall festzulegen. In PV*SOL ab Version 2021 kann man aber auch eine Luftwärmepumpe im neuen Anlagentyp Thermische Anlage simulieren. Dabei werden die Klimadaten des aktuellen Standorts verwendet. Das Lastprofil "Wohnkomplex" geht auf eine Forschungsarbeit aus der Schweiz zurück ("Warmwasserversorgungen heute; AT Verlag Aarau (Schweiz) 1984"). Von der
    1 point
  18. PVSol should be able to import Horitzon profile directly from PVGIS or similar
    1 point
  19. It sounds like you need to change the "Units" setting from kW to kWh. Hope that helps!
    1 point
  20. 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
    1 point
  21. When you put in value, you need to enter coma but not the dot.
    1 point
  22. Hello, I have a general technical question; is it ok to connect 2 strings with different modules number to one MPPT (18 and 19 for example when using the polystring feature in PV sol). I've read on some forums that there are losses due the voltage mismatch and the MPPT tracks the string with the lowest performance; but is it really a red line for PV designers or it's just not preferable and I can do it only when necessary? Thanks in advance Karam
    1 point
  23. Hi Burak, the 0,4 ct/kWh is the so called "Management Prämie" that shall compensate for the extra cost that a PV system owner has when he or she is opting for the "Direktvermarktung" In the numbers published by the "Bundesnetzagentur" those 0,4 ct/kWh are already included: https://www.bundesnetzagentur.de/SharedDocs/Downloads/DE/Sachgebiete/Energie/Unternehmen_Institutionen/ErneuerbareEnergien/ZahlenDatenInformationen/PV_Datenmeldungen/DegressionsVergSaetze_11-01_21.html They provide an Excel file that you can download, and in there there is a sheet called "Beispiele". Ther
    1 point
  24. Hi Ricardo, the active power will be capped. The output power clipping is based on the apparent power, say S_max. With cos φ = 1, the system will not produce reactive power, so active power equals apparent power, and the maximum power output is P_max = S_max. When the cos φ is smaller than 1, the maximum active power output will be reduced by this factor (while the maximum apparent output power remains the same), since P_max = S_max * cos φ. Hope that helps, kind regards, Martin
    1 point
  25. Hi Sondre207, I must admit I missed your question. Sorry about that. Within the graphical allocation (2D) this is possible: Set installation type to Mounted - roof Uncheck Roof parallel and set a different module orientation Change the module inclination to 0° Change the row distance from 1m back to 0.005m to get rid of the default row distance In 3D you can achieve a similar effect by using module mounting: which results into this configuration: The problem is you cannot get rid of the mounting system as far as I'm concerned.. Y
    1 point
  26. Hi Ricardo, could you provide the two project files, please? You can send them with a private message here in the forum. Thanks and kind regards, Martin
    1 point
  27. 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
    1 point
  28. You can get rid off them by setting the distance to edge to zero in "Edge distances"
    1 point
  29. Hi Ricardo, thanks for the project. These are two different module types and if you select all of them, the generator power is calculated from the total number of modules and the lower of the two module powers. This only affects the display, however, the correct generator power will be displayed during interconnection and after exiting 3D. But I will set the issue on our list as it can easily confuse. Thanks for reporting! Kind regards, Martin
    1 point
  30. Hi Abhinav, are you participating in the Solar Decathlon Europe? Nice to see that this competition is still running. I was also participating, in the SDE 2010 edition, with Team Berlin. What a unique time! We wish you and your team all the best! ? Regarding the curved roof: It is not possible, unfortunately, to place modules on curved roofs as yours. The reason is that PV*SOL is scanning the surface for flat planes, and it only finds small sections on your roof, see for example the blue highlighted area: This is too small to place a module there. You could redesign your mod
    1 point
  31. Hi klb, in the options of the presentation, there are two check boxes for the financing. If you uncheck both, both financing sections will be gone: Hope that does it for you, kind regards, Martin
    1 point
  32. Hi Ricardo, you can find the IAM under "Additional parameters": Kind regards, Martin
    1 point
  33. Hallo Julian, wenn das Programm meldet, dass fehlende Informationen nicht ermittelt werden konnten, handelt es sich in aller Regel um das Land des Standorts. In diesem Fall konnte es den Standort nicht ermitteln, da der Längengrad das falsche Vorzeichen hatte. Also streng genommen ist es ja das richtige Vorzeichen, nur muss man es für den Import in Meteosyn anders herum eingeben. So klappt's: Tzoukri 39.1334,-20.5429,40,-2,-30 ... Viele Grüße, Martin
    1 point
  34. Hallo an alle, dank der Dateien von Tom konnten wir das Problem schnell finden. Wir werden diesen Fehler mit der nächsten Version beheben. Hier der Workaround für alle: In der Zwischenzeit würde Abhilfe schaffen, in der Datei C:\Users\USERNAME\Documents\Valentin EnergieSoftware\PVSOL premium 2020\PVSOL.ini die Felder "MaxNumberOfInvertersForResults" und "MaxNumberOfMppsForResults" in dieser Zeile zu ändern: <Results SaveHourlySimulationResults="False" SaveOneMinuteSimulationResults="False" SaveIVCurves="False" CalculateYieldLossDueToShading="True" MaxNumberOfInvertersFo
    1 point
  35. 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
    1 point
  36. Hi Julius, sometimes there are problems with attics of imported models. Could you provide the model so that our technical hotline can have a look at it? You can send it here via private message or directly to hotline@valentin-software.com Thanks a lot in advance, Martin
    1 point
  37. 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 ?
    1 point
  38. Dear Natheera, the climate data we use in PV*SOL is from Meteonorm, that is correct. The Meteonorm climate data are based on various sources of radiation measurements (ground stations, satellite) , with different time ranges (e.g. 1961 - 1990 or 1991 - 2010 and so on). The availability of climate dataset source varies from location to location. You can find more on that topic here in the manual of Meteonorm in Chapter 3.1: https://meteonorm.com/assets/downloads/mn73_software.pdf This information refers to a another type of product by Meteonorm, historical time series with one
    1 point
  39. Hi K24, as Vishnu pointed out, the activation of minute values is most of all important if you have sizing factors of above 115 %, or if you have battery systems or electrical appliances that are involved. If your DC/AC ratio is about 1, and you just want to analyse the feed in, you might be well off with hourly values. But I would always recommend to compare the results at least once. Just simulate your PV system with hourly values, save the results somewehre, and then simulate the same system with one-minute values. Then you'll directly see the differences for your specific case.
    1 point
  40. 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
    1 point
  41. Great ideas all of them, specially the first 3. If I may add another, I'd like to not only have input to enter the exact line length, but also to enter the line relative angle, a bit like what can be done with buildings: That would be very helpful when you need to draw complex buildings and and make sure modules on different roofs are oriented similarly for configuration in the same MPPT. Please see below an example of a rather poor attempt I was working on recently: Keep up the good work and thanks for your timely replies!
    1 point
  42. Martin, I was genuinely thinking it was my fault the data was not being adopted, that I had done something wrong. It never crossed my mind this could be the intended behaviour by design. The logical approach (at least to me) would be to use 3D to take precise length measures and then adopt them into the 2D design. I always assumed this was the case. As it is it makes absolutely no sense at all, I can't understand why was this module designed like this, and I see it's not just me. What you're saying is that all of the trouble of designing combiner b
    1 point
  43. @Vishnu: Thanks a lot for answering here! We really appreciate it a lot when you help out each other!
    1 point
  44. Hi Kamal, these kind of bends occur when you have unequal number of modules in your strings. The curve section from 0V to the point where the bend occurs is where the two strings both deliver a current for the given voltage. After the bend, up to the open circuit voltage of the longer string, only the longer string (with 21 modules) can deliver current, the other string is not contributing anymore. Kind regards, Martin
    1 point
  45. Hi Martin, Thanks for the your helpful response! I used the feature to compare the IV curves as you mentioned. Do you (or any colleague in this forum) have/has an explanasion for the abnormality in the IV curve of MPPT 2 ? (please see the attached screenshots) Beste Grüße Karam
    1 point
  46. Hi Karam, no, I would not say that connecting strings with different module numbers is a red line in general. Why not try it out in PV*SOL directly? We calculate the losses due to string mismatch with great accuracy, so you can just see how much energy you loose in you PV system and see for yourself if you can accept these losses. You can also see the resulting IV characteristics of your parallel strings in the results page (under Simulation -> Diagram Editor -> Type of Diaram: Characteristics) Kind regards, Martin
    1 point
  47. 1. More control when drawing lines: snap to 10cm or input to drive line length 2. Snap to mid point of line - the ridge of a roof is almost always in the middle 3. ctrl+Z to undo 4. better control when rotating the camera position 5. Higher resolution on panels when zoomed out 6. Default project image zoomed out enough to show whole array Keep up the good work PVSOL team.
    1 point
  48. Hi Daniel, this value refers to the current energy mix in the country where you design your PV system. In Germany, for example, we have an energy mix that produced ~ 530 g CO2 per kWh in 2016. This value is used to calculate the CO2 emissions that were avoided thanks to your PV system. Kind regards, Martin
    1 point
  49. Hi What is the formula used to compute Accured Cashflow (cash balance) minus pending loans? I want to try and model my proposal on monthly basis. thanks
    1 point
  50. Hi Tom, thank you for your question. The Accrued Cashflow minus the pending loans would be your normal cashflow minus all the loan repayments and interests that you still have to pay in future. So, for example: Here I defined a 10 year loan over some 4320 $ with 2 % interest rate and the first 2 years without repayment. If you sum up all loan repayments and interests until year 10, you'll get -5254.16 $. To calculate the Accrued Cashflow minus pending loans for the first year, you'll take the normal cashflow (701.79 $) and subtract the 5254.16 $, but, as you consider the en
    1 point
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