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Hallo, vielen Dank für Ihre Anfrage. Bitte senden Sie uns die Projektdatei (*.pvprj) und das Bild (den Kartenausschnitt) an hotline@valentin-software.com, dann sehen wir uns das an.

Hello, Thank you for your inquiry. The maximum charge and discharge power of a battery system is limited by either the inverter or the battery storage unit. We will contact the manufacturer, Deye, and ask them to supply the missing SUN-10K-SG02LP1 battery systems. For comparison: The SUN-10K-SG01HP3 battery systems have a maximum charging power of 13 kW and a maximum discharge power of 11 kW. Consequently, the SUN-10K-SG02LP1 battery systems would have a maximum charging power of 16 kW and a maximum discharging power of 11 kW.

Hallo, vielen Dank für deine Nachricht. Rechts neben dem Diagramm "Ertragsprognose mit Verbrauch" findest du den Button "Zur Tabelle wechseln": Die Abregelung am Einspeisepunkt wird in kWh pro Monat ausgegeben:

Dear Sharjeel, Thank you for your inquiry. When creating a new inverter dataset, you typically face the issue of not knowing the inverter's efficiency curve, as it is not published on the datasheet. On May 29, Sungrow updated the SG125CX-P2 and added the new SG125CX-P3. Which inverter are you missing? Please provide the exact model designation or send us a datasheet. We will then contact the manufacturer to request that the information be added or updated.

Dear Mark, Thank you for your message. For lithium iron phosphate batteries, the reference value used to calculate discharge cycles is based on a DoD of 40%. This results in the following factors for the discharge cycles: DoD Value 0.2 2.206563 0.4 1 0.6 0.598166 0.8 0.397315

Dear Mark, Thank you for your inquiry. The house connection, electrical service connection or grid connection is the interface between a building's electrical installation and the power supply grid. It consists of the service entry cable and the service connection box.

Dear Mark, We apologise: for lithium iron phosphate batteries, the reference value used to calculate discharge cycles is not a DoD of 60% (as with lead-acid batteries), but a DoD of 40%. You can simply enter these four values manually: We are still awaiting feedback from our development department regarding the formula.

Hello, Thank you for your inquiry. We confirm that in PV*SOL premium 2026, you can only generate new climate datasets using Meteonorm 9 data. However, you can continue to use your own climate datasets based on Meteonorm 8.2 data for simulations. If you select a custom climate dataset based on Meteonorm 8.2 data from the drop-down menu in PV*SOL premium 2026, the simulation will be performed using Meteonorm 8.2 data. Unfortunately, we are not permitted to integrate multiple Meteonorm versions into a single version of PV*SOL premium. We obtain the data from Meteonorm and have no control over the data itself; we simply integrate it into PV*SOL premium. Therefore, only the current Meteonorm 9 version can be used in the current version of PV*SOL premium 2026. If you wish to work with Meteonorm 8.2 data, you must use PV*SOL premium 2025 R10. We have sent you an email with the download link. Before doing so, you must uninstall two applications: both PV*SOL premium 2026 and MeteoSyn. If you wish to use PV*SOL premium 2026 on a second computer, you can transfer the Meteonorm 8.2 data from the first computer to the second by importing the WBV files from the directory "C:\ProgramData\Valentin EnergieSoftware\MeteoSyn\WBV\_userfiles\ZAF" into PV*SOL premium 2026: Any project file (*.pvprj) started in PV*SOL premium 2025 R10 can be opened in PV*SOL premium 2026. The climate dataset based on Meteonorm 8.2 data will then be automatically added to the list of available climate datasets in PV*SOL premium 2026.

Dear Haydn, Thank you for your inquiry. In the hourly simulation, hourly generation and consumption values are simulated and compared, and the self-consumption rate is determined from them. With a generation of 800 kWh and a consumption of 1,000 kWh, self-consumption in that hour is 100%. In the minute-by-minute simulation using half-hourly consumption values, minute-by-minute generation values are compared with half-hourly consumption values. No minute-by-minute consumption values are generated.

Dear Mark, Thank you for your inquiry. The commas must be removed. Please find enclosed the CSV file we have edited. Wannie Zorzetto Load Profile VAL.csv

Hello, Thank you for your inquiry. You can activate the roof surfaces by right-clicking --> Activate. This switches the view from terrain to object mode, allowing you to place panels on the roofs. This YouTube tutorial explains the activation process at the 05:00 mark.

Dear Haydn, Thank you for your inquiry. If you select multiple load profiles (whether imported by you or built into the program), they are aggregated into a total consumption figure for the simulation. In the hourly simulation, the self-consumption share is calculated for every hour of the year by determining what percentage of consumption can be covered by PV energy. Hourly simulation is the standard. However, when importing load profiles, you can also import data with 1-, 5-, 10-, 15-, or 30-minute intervals and then run the simulation on a minute-by-minute basis to obtain more precise results.

Hallo, vielen Dank für Ihre Anfrage. Wir haben soeben die Hilfe zur Rexplorer API veröffentlicht. Um sich registrieren zu können, müssen Sie eingeloggt sein. (Ein Test innerhalb der Testversion ist nicht möglich.) Die ersten 10 Standorte sind kostenlos. Danach können Sie in den bezahlten Tarif wechseln (dann unbegrenzter Zugriff). Für jede Standort-Anfrage erhalten Sie alle Gebäude in einem Umkreis von 100 m. Die Rexplorer API ist nicht mit der Google Solar API kombinierbar. Auf der Intersolar in München vom 23. bis 25. Juni 2026 werden wir die Planung mit der Rexplorer API live zeigen. Sie finden uns am Stand A4.331.

Hello, Thank you for your inquiry. PV*SOL is generally suitable for retrofit string redesign of existing rooftop PV systems, subject to the following limitations: The 3D visualization allows a maximum of up to 7,500 elevated modules or up to 10,000 roof-mounted modules. You can only simulate the entire system, comprising 13,000 modules, in the 2D planning tool. For 3D planning (including shading analysis), we recommend that you split your overall project into two or three sub-projects. There is also an area limitation. When planning with the Google Solar API or with a map section from another provider, you are limited to a size of 200 m x 200 m. If your overall system is larger, you will need to simulate sub-systems. When carrying out 3D planning, please follow our guidelines on dividing large systems into subsystems so that you can make changes at a later stage or create different retrofitting options. Save different retrofitting versions in separate project files. By selecting ‘File’ --> ‘Project Comparison’, you can compare the simulation results of up to 6 project versions.

Hello, Thank you for your message. We have forwarded your suggestion to our development team and thank you for bringing this to our attention.

Dear Alberto Perez, Thank you for your inquiry. If you are missing datasets, the best approach is to email hotline@valentin-software.com with the exact model designation or the datasheet. We will then contact the manufacturer and request that the missing products be added. You can create datasets yourself, subject to the following limitations: Data on low-light performance is usually unavailable for PV modules. You can either select the "Standard low-light performance" option or copy the low-light performance data from a similar module. Efficiency curves are usually unavailable for inverters, so you must copy the efficiency curve from a similar inverter. For battery systems, ensure that the lower value is always used when there are differing charge/discharge power ratings for the inverter and the storage unit. Custom datasets can be imported; supported formats are PAN for PV modules and OND for inverters.

Dear Mark, Thank you for your inquiry. Since you cannot enter 8,000 cycles at 70% EOL (DoD), enter 10,000 cycles at 60% EOL (DoD) (and have the remaining values calculated).

Dear Mark, Thank you for your inquiry. Your ridge is not centered. Consequently, the roof pitch is 22 degrees on the south side and 25 (or 27) degrees on the north side. If you have a symmetrical roof, check the box for "centered." If you change the roof pitch, the existing configuration will unfortunately be deleted.

Dear Mark, Thank you for your inquiry. Unfortunately, that is not possible. Your only option is to run the simulation twice—once with and once without the non-essential loads.

Dear Mark, Thank you for sharing the project file. Consumption does not take place only between 12 noon and 4 pm, but between 7 am and 7 pm. On a sunny day in November, a month with high levels of solar radiation, demand can only be met by solar power (including the battery) between 8 am and 6 pm. Electricity must be drawn from the grid for one hour in the morning and one hour in the evening. The battery is charged within an hour (8–9 am) and discharged within an hour (5–6 pm). With a usable capacity of 4.6 kWh, it is far too small to cover evening and morning consumption (before sunrise). The battery capacity would need to be increased approximately tenfold to ensure a high degree of supply security even in June, a month with low solar radiation. Excluding non-essential loads, the small 4.6 kWh battery is, of course, sufficient to cover essential loads. We have sent you the screenshots from the diagram editor by email.

Dear pero159, Thank you for your inquiry. In the inverter configuration window, specify that you want to connect two modules in series each.

Dear Hannah, Thank you for your inquiry. PV*SOL premium files can only be opened in PV*SOL (Standard) if they are purely 2D designs, i.e. if the “Use 3D Design” box has not been ticked on the “System Type, Climate and Grid” page:

Dear Mark, Thank you for your message. We confirm that you have correctly configured the battery system. For LFP batteries, please define the charging strategy as follows: The values within the green box are not relevant in this case (for LFP batteries) and will not be taken into account. However, in the red box, the DOD (Depth of Discharge) is defined in percentage terms. If the system allows for a full 100% DOD, leave this value at 0%; otherwise, enter the difference here (100 – DOD in %)—for example, for a 90% DOD, please enter 10% here. The usable capacity is calculated based on this value.

Dear Mark, Thank you for your inquiry. You can watch our webinar recording. The financial analysis is explained starting at 01:00. Further information can be found in our online help section.

Dear Mark, Thank you for your inquiry. We confirm that you have selected the correct system type (Grid-connected PV System with Electrical Appliances and Battery System) and the correct battery system (featuring DC intermediate circuit coupling, in accordance with the circuit diagram). Although your preferred battery system (Deye 20K inverter with 5.12 kWh battery) is not currently available in our database, the Deye 20K inverter with 20.5 kWh battery system is available. You can copy this battery system and reduce the number of batteries per string from 4 to 1.