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Hello, I have a question regarding the LCOE calculations and the total energy produced, including degradation. Which formula is used to calculate the total energy over the entire period? When I calculate it manually using the following formula, I get a different price for the energy produced. I'm trying to understand where the discrepancy is. Do you account for degradation only in the first year, or is it considered throughout the entire period?

Dear Carl, Thank you for sending the project file. For systems with a full feed-in concept, you can specify the P value used for the financial analysis in the ‘Bankability: Exceedance probability of the forecast yield (P50/P90)’ dialogue. Unless otherwise specified, the P50 value is used by default in the yield simulation. You have selected the P90 value, which is why the low grid export in the first year is used for the financial analysis.

Thank, I have just sent an email.

Dear Carl, Thank you for your inquiry. Please send us the project file (*.pvprj) to hotline@valentin-software.com, so that we can take a closer look at it.

Hi, Can you please tell me what would create the Grid Export in First Year to be so low. Thanks Carl

Dear Henrique, Thank you for your inquiry. We cannot reproduce your problem. In the Energy Flow Graph we can see that the battery is not charged from the grid. Regarding your second question: Unfortunately, it isn't possible to enable charging only after the PV Power became above the clipping power.

Dear Adam_W, Thank you for your inquiry. Unfortunately, this isn't possible. We will forward your request to our development department.

Dear Maggie, Thank you for your inquiry. If you specify a displacement power factor (cos φ < 1) in the options, the inverter's active power will be used instead of its apparent power.

Sehr geehrter Herr Joos, vielen Dank für Ihre Anfrage. Die von Ihnen gewünschten Features (Erhalt der Verschaltung bei Wechselrichter-Tausch, freie Namengebung der Wechselrichter und der Strangbezeichnungen) sind uns bekannt und wir arbeiten an einer Umsetzung. Um bei 600 Modulen nicht alle Module einzeln von Hand verschieben zu müssen, empfehlen wir die Verwendung der Funktion "Modulflächen für die Verschaltung definieren" (eine Erläuterung finden Sie hier). Sie können Modulflächen je Wechselrichter, je MPP-Tracker oder je Strang definieren. Das kann viel Arbeit einsparen, insbesondere wenn Sie erst mit dem alten und anschließend mit dem neuen Wechselrichter simulieren wollen. Die Definition der Modulflächen bleibt beim Wechselrichtertausch erhalten. Innerhalb der Modulflächen müssen Sie auch nur in besonderen Fällen die Module einzeln von Hand verschieben. In den 3D-Optionen können Sie die Richtung, den Startpunkt und den Verlauf pro Strang, pro MPP-Tracker, pro Wechselrichter und pro Modulformation angeben. Diese Sortierung lässt sich auch bei bestehender Wechselrichter-Verschaltung ändern, ohne dass die Wechselrichter-Verschaltung dabei gelöscht wird.

Dear Tade, Thank you for your message. The problem has been solved. Software version 2025 R5 will be released on April 2.

I have the latest version of PV*Sol Premium installed. The problem with energy flows still persists!!! The program distributes energy flows as it wants!!! I bought the program as support for energy audit calculations. It worked perfectly with previous versions of the program. Now I can't use the paid program for more than two months! Will I be charged for the time the program is down? Optimalizácia byty a SP a TV 2025 - NEPOUŽÍVAŤ.pvprj

Hallo, ich komme öfter in die Situation eine Bestandsanlage, für die ich keine Planung habe zu dokumentieren und evt. defekte WR zu tauschen. Mein vorgehen: Anlage neu anlegen Verschaltung mit alten WR vornehmen. Jedes Modul (> 600) einzeln verschieben, damit der Strangplan passt. Wenn ich jetzt Versuche die Anlage auf aktuelle WR umzubauen ist die gesamte Verschaltung dahin. Ich würde aber gerne die alten Strings belassen, da ich nicht auf dem Dach um verdrahten kann, ohne wieder alle 600 Module einzeln von Hand zu verschieben. Auch, wie schon oft hier angesprochen, benötigen wir eine freie Namensgebung der WR und der Stringbezeichnungen. Das wird jetzt immer öfter kommen, dass alte Anlagen überarbeitet werden. Freundlichen Gruß Ralph Joos

Hi, Can you please tell me what power rating is used when calculating the annual yield of an inverter - is it the nominal (rated power) or the VA rated (apparent) power? Many thanks.

Hi, I would like to know if there is a way to input two different tariffs for purchasing energy from the grid. I understand that it is possible to set up multiple dynamic tariffs for selling energy, but I need to do the same for the energy I have to buy. In my case, for the next two years, I have a contract with a fixed price of X per MWh for energy purchased from the grid, and after that, the price changes to Y per MWh. Is there an option to input these values, or is it only possible to do so for the energy consumed and sold from the PV installation?"

CPV Aguiar - Cópia.pvprjHere it is.

Dear Lukas, Thank you for your inquiry. Have you enabled the saving of characteristic curves to project files? If so, please disable this function. If autosave files are saved for the current project, please send us the most recently saved file to hotline@valentin-software.com. The autosave files are saved by default in the following directory: C:\Users\USERNAME\Documents\Valentin EnergieSoftware\PVSOL premium 2025\Autosave Please also send us the log files. These files can be found in the following directory: C:\ProgramData\Valentin EnergieSoftware\log Please note: ProgramData normally is a hidden folder. If it is not shown please enable the option "Show hidden files and folders" in the folder settings or type in the path in the Windows Explorer path field. We would need the following files: pvsolpremium.log pvsolpremium.log.1 (if available) pvsolpremium.log.2 (if available)

Sehr geehrter Herr Müller, vielen Dank für den Hinweis. Wir arbeiten an einer Lösung. Das Problem ist bekannt und wird mit einem der nächsten Software-Updates behoben werden.

Dear DroneOperator0, Thank you for your inquiry. The easiest method for resizing an image on a Windows PC is to use the built-in Photos app: https://support.my.uq.edu.au/app/answers/detail/a_id/3276/~/how-do-i-change-the-resolution-size-of-an-image-on-a-windows-pc%3F

Bei mir wird sporadisch die Leistung vom Wechselrichter in der Energieflussgrafik mit 0 angezeigt. Zum Verbraucher und auch ins Netz stimmen die angaben.

Model is flipped on the side, followed same procedure like last one which was oriented correctly. how to rotate the model in Z axis? EDIT: Solved this Rotaing in Blender

testing the Software and Stuck at: -reduce the Model size of the texture to 4096*4096 pixel Anny advice how to solve that problem without paying for extra software?

Thank you very much.

Dear all, Anyone else encounters that saving is not possible? What can you do about this? After 15 sec it says file can not be saved. Thanks veryone!

Dear Sunnyfish, Thank you for your inquiry. The off-grid planning in PV*SOL is based on the SMA Off-Grid Configurator program, which we once programmed for SMA. It only contains the SMA design rules and you can only plan off-grid systems with AC-coupled batteries. It is not possible to plan systems in which the battery is DC-coupled. When using 3 x Growatt SPF 5000 ES, the batteries (2 x Growatt GBLI 6532, 6.5 kWh) are coupled on the DC side. This cannot be simulated correctly with the off-grid tool in PV*SOL. You have two options: 1. You use the off-grid tool and simulate your DC-coupled system as an AC system. To do this, create a new Growatt SPF 5000 ES in the database for the PV inverters (or use the Growatt SPH 5000 instead). On the ‘Inverters’ page, select 3 x Growatt 5000: On the ‘Battery Inverter and Battery’ page, select 3 x Growatt SPF 5000 ES and 2 x Growatt GBLI6531/2: The single line diagram looks like this: 2. You switch to a grid-connected system with electrical appliances. You create a new Growatt SPF 5000 ES in the PV inverter database (or use the Growatt SPH 5000 instead). You also create a Growatt SPF 5000 ES with one Growatt GBLI 6532, 6.5 kWh in the battery system database and select "DC intermediate circuit coupling": On the ‘Inverters’ page, select 3 x Growatt 5000: On the ‘Battery System’ page, select 1 x Growatt SPF 5000 ES with Growatt GBLI6531/2 and No. of battery systems "2": The single line diagram looks like this: In the window “System type, Climate and Grid” you set the “Maximum Feed-in Power Clipping” to zero. Then no energy will be fed into the grid. The value under “Total Consumption covered by grid” then represents the energy which cannot be covered by the PV system. This energy has to be provided by a generator.

Dear Stenger, Thank you for your inquiry. The cable length estimation has not yet been included in the 3D modelling. Thank you for pointing this out again.