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Dear semiht, first of all let me wish you a happy and healthy new year 2021. Could you provide me the project file, please? That would make it easier to answer your question. You can send it here in the forum by private message. Kind regards, Martin

Dear Pro GD Engenharia, I translated your post with deepl.com, I hope it is correct: Would it be possible for you to send the 3D model file over to us so that we can have a look? Please send it here in the forum by private message, thanks. Kind regards, and a good start into 2021, Martin

Hallo Johann, ein frohes und gesundes neues Jahr 2021 wünsche ich zunächst! Leider kann ich aus deinem Post nicht direkt ableiten, was genau die Frage ist, bzw. was eine hilfreiche Antwort wäre. Kannst du näher ausführen, wo es klemmt? Beste Grüße und einen guten Start, Martin

Hi Miguel, that is correct, in PV*SOL you can't design an offgrid system with just PV, charge controller and batteries. The offgrid systems are limited to the connection over an AC bus, and in general, energy-yield-wise, it should be ok to design the system as AC system in PV*SOL, even if it is DC in reality. You'd have to set the PV and battery inverter efficiencies correspondingly. In terms of "overall efficiency" it really depends on the devices that are used. See also these threads for more information: Kind regards, Martin

Hallo Frank, auf unserem Youtube-Kanal solltest du fündig werden: https://www.youtube.com/user/valentinsoftware/videos Hier ein zweiteiliges Webinar auf deutsch: Viel Erfolg und schöne Feiertage, Martin

Hallo SunForFree, die Wärmepumpe kann entweder als Standardlastprofil ausgewählt werden (bei der Anlagenart "Netzgekoppelte PV-Anlage mit elektrischen Verbrauchern"), oder detailliert parametrisiert werden, dann auch einer eigenen Seite, nicht bei den Verbrauchern (Anlagenart "Netzgekoppelte PV-Anlage mit elektrischen Verbrauchern und thermischem System"). Die Anlagenart lässt sich auf der Seite "Anlagenart, Klima und Netz" einstellen. Beste Grüße, Martin

Hi crobecerra, yes, you can use PV*SOL for this purpose. You can enter your mechanical equipment with arbitrary power and with various options. If you have good information on the equipment, I guess that the option of "individual appliance" would be the best way to go: https://help.valentin-software.com/pvsol/2021/en/pages/consumption/ You can then define the battery system and backup generator, if you wish. There are several ways of controlling the energy flow (SOC-based, time-based, load shedding and so on), I think you will find out very quickly. Kind regards, Martin

Hi Joe, Windows Vista an Windows 7 are not supported anymore, I am afraid. You should really consider to update to Windows 10, since also Microsoft dropped official support for those operating systems (for Windows Vista in 2017 already, for Windows 7 in January 2020). https://www.microsoft.com/windows/windows-7-end-of-life-support-information Microsoft won't provide updates, security patches and so on. It is really a security risk running those operating systems. Kind regards, Martin

Hallo Gerald, die Diagramme und viele Ergebnisgrößen sind nicht zu sehen, wenn auf der Wirtschaftlichkeitsseite als Einpeisekonzept nicht "Überschusseinspeisung", sondern "Net-Metering" steht. Ich hoffe, das hilft weiter. Beste Grüße und einen guten Start in die Woche, Martin

Hallo SunForFree, ja, das geht. Eine Wärmepumpe lässt sich in PV*SOL premium ab Version 2021 R1 mit planen. Auch mit den erwähnten Abschaltzeiten. Beste Grüße, Martin

Hallo Ralf, es tut mir leid zu hören, dass die Ordnerwahl bei dir so verrückt spielt. Ich es habe versucht, bei mir nachzustellen, aber bei mir wird immer das Installationsverzeichnis PV*SOL premium standardmäßig geöffnet. Warum sich der Meteonorm-Ordner öffnet, ist mir ein Rätsel. Könntest du mir mal die ini-Datei schicken, die du unter "C:\Users\<USERNAME>\Documents\Valentin EnergieSoftware\PVSOL premium 2021\PVSOL.ini" findest. Aber bitte als private Nachricht hier im Forum. Dass sich am besten der zuletzt ausgewählte Ordner gemerkt werden sollte, stimmt aber natürlich. Das werde ich weitergeben, bzw. auf die Liste setzen. Danke für den Hinweis. Beste Grüße und einen guten Start in die Woche, Martin

Hi keirm, did you try to apply this work-around here: This should be fixed in the new release, PV*SOL premium 2021 R3. Could you provide a screenshot, please? Also, does this behaviour disappear when you apply the above mentioned work-around? Hope that helps, kind regards, Martin

Hi Chris, the electricity savings are calculated with the energy that you don't have to draw from the grid (because you have a PV system now), multiplied with the costs of electricity from grid (in €/kWh), which is defined in the from-grid tarriffs, as Vishnu correctly pointed out. Let's say you have a consumption of 5000 kWh per year. Usually you pay 0,25 €/kWh to the electricity company, that is 1250 € per year. Now with your PV system you can use 1500 kWh of your produced solar energy directly to cover your consumption, so you only have to cover the rest of 3500 kWh from the grid. For those 1500 kWh you don't have to pay your electricity provider, so you save 1500 kWh * 0,25 €/kWh = 375 €. Hope that clarifies the matter, kind regards, Martin

Hi Josef, Usually the runtime should install itself during the PV*SOL installation, but sometimes this fails. You can install a newer version of the .NET framework, at least version 4.7.2., by hand. Visit the following link, download the runtime and install it on your machine. https://dotnet.microsoft.com/download/dotnet-framework/net472 Choose to install the runtime, not the developer pack. Kind regards, Martin

Dear Petros, we do have that feature on our list, but right now I can't tell a date. It is not scheduled yet, I am sorry. But there are plenty of tracking options (backtracking modes included) in the main application. https://help.valentin-software.com/pvsol/2021/en/pages/pv-modules/#tracking Kind regards, Martin

HI Bert, thanks for the project files. What you see there as "hourly discontinuities" is the effect of hourly calculated shadows from the 3D environment. That is, they are calculated on a 10 min basis, but then averaged to 1h values prior to handing them over to the main PV*SOL application for performance reasons. One can see that the phenomenon is not visible until the module specific shading (and low light behaviour, which is of course dependent) come into play: And then: So, no error here, just hourly shading values. In future we want to be able to use 1min values of the shading as well, but this requires much more performance (factor 60), so unfortunately this is not so easy to accomplish. Hope that helps, kind regards, Martin

Hi Bert, thank you for the question. Could you provide a project file, please? You can send it here in the forum by private message (to me). Or by email to hotline@valentin-software.com, with a short note that they shall forward it to me. Kind regards, Martin

Hi V Solar, in PV*SOL you can only place modules on plane (i.e. not round) surfaces. For this reason you have to create the cylindrical shape out of approximations with plane sections. See this post here for some hints. I guess you want to place the PV modules on top of the oil tank? You would then have to create the dome out of small triangles (in Sketchup for example), like a geodesic polyhedron (http://www.wikiwand.com/en/Geodesic_polyhedron) PV panels on top of oil tanks... I like the picture there Kind regards, Martin

Hallo Spap, hast du die Kosten für das Batteriesystem in den Wirtschaftlichkeitsparametern eingegeben? Auf der Seite Wirtschaftlichkeit -> Parameter zur Wirtschaftlichkeit -> Bearbeiten -> Kostenbilanz kannst du sie eintragen. Beste Grüße, Martin

Hi Barbadori, PV*SOL doesn't show something like this out of the box, no, sorry. You would have to export the simulation results to a spreadsheet application (e.g. Excel) and craft it yourself, I guess. Kind regards, Martin

Hello John, although it warms my heart to see a screenshot of PV*SOL expert, which is about six years old, I would recommend to use the current version of our software, PV*SOL premium 2021. We can't provide support for Expert anymore, I am afraid. https://valentin-software.com/en/downloads/ Kind regards, Martin

Hi Keir, right now there is no other possiblity than to modify the values beforehand in a text editor or Excel or so, i.e. cut the values from line 1 to 5856 (01/09/19 00:00 to 31/12/19 23:30) and put them at the end of the file. But I will put this request on our list, it should be no problem to implement it. Kind regards, Martin

Hallo loho, nein, diese Kombination geht in PV*SOL tatsächlich nicht. Eine Möglichkeit, die mir jetzt so spontan einfällt, wäre, das Ladeprofil des E-Autos aus den Ergebnissen einer netzgekoppelten Anlage zu extrahieren und als Lastprofil in einem netzautarken Projekt zu importieren. Beste Grüße und viel Erfolg bei der Projektarbeit! Martin

Hi Tim, does this happen all the time or only after you do something special (like search coordinates, for example). As a side note: it is best to use the semicolon if you search for coordinates, not the comma, to separate latitude and longitude. Kind regards, Martin