hotline_oh
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The tenant electricity model is unfortunately not selectable as a balancing/feed-in concept and must be entered/adjusted individually. Assuming that the demand profile represents the tenants' consumption, self-consumption corresponds to selling electricity to the tenants. This can be accounted for through savings by defining a from-grid tariff that corresponds to the selling price to the tenants. The electricity fed into the grid is compensated with a feed-in tariff or via direct marketing. Since the operator may also have to/be able to guarantee security of supply, the generated PV energy may not be sufficient to cover the tenants' demand. In this case, electricity must be purchased from the grid by the energy supplier. To account for this, you must multiply the amount of electricity purchased by the energy supplier's price per kWh and enter this value under "Other Costs" in the "Financial Analysis" under "Economic Parameters --> Cost Balance".
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No, our PV software cannot calculate costs. Component prices and other costs are not included. You must determine the costs of your planned system yourself. The calculated system price is entered into the profitability analysis and thus forms the basis for the financial forecast. The forms in the "financial analysis" module are pre-populated with sample values and do not represent average or empirical values. You must adjust these to suit your specific project.
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Dear Anders, Thank you for your message. We confirm that the result of the shading analysis is plausible. The trees are not very tall and the modules are not located directly at the roof edge. It should be taken into account that the trees could grow over the operating life of the PV system.
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Dear CarlSEL, Thank you for your inquiry. We confirm that the manufacturer Sungrow has listed the SG150CX inverter with a maximum input voltage of 1100 V in our database: According to the datasheet, the open-circuit voltage of the DM510M10RT-B60HSW/HBB/HBW/HBT/HST module under STC conditions (25 °C) is 45.1 V. The maximum open-circuit voltage is calculated for -10 °C. The temperature coefficient of the voltage is -0.247%/K or -111.5 mV/K. The temperature difference from +25 °C to -10 °C is 35 Kelvin. This temperature difference leads to a voltage increase of 35 K * 0.1115 V/K = 3.90 V. This results in a maximum open-circuit voltage of 45.1 V + 35 K * 0.1115 V/K = 49.0 V per module. String with 21 modules: 1029.05 V String with 22 modules: 1078.06 V String with 23 modules: 1127.06 V String with 24 modules: 1176.06 V PV*SOL allows the connection of 21 modules (normal range) or 22 modules (MPP voltage tolerance range of 865.7 V, normal open-circuit voltage range of 1078.1 V). We cannot reproduce your configuration with 24 modules. Please send us a screenshot or the project file (*.pvprj) to hotline@valentin-software.com, and we'll take a look at it.
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On the "Presentation" page, you can export the simulation results using the "Time Series (CSV)" button. Select the desired meteorological data series, and the radiation data in kWh/m² and the outside temperature in °C will be output to a CSV file: On the "Results" page, you can display the same data series for different time intervals in a diagram using the diagram editor:
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How do I export 15-minute values from the simulation results?
hotline_oh posted a question in FAQ (Read only)
On the "System Type, Climate, and Grid" page, select the 1-minute time step: On the "Presentation" page, you can export the simulation results using the "Time Series (CSV)" button. Specify 15 minutes for the data resolution. Select the desired data series, for example, "PV energy (AC) minus standby use," and the 15-minute values for a year in kWh will be output to a CSV file:
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When simulating different modules that have the same power output and similar characteristics, yield differences are usually due to the low-light performance. Module manufacturers enter their own data into the PV*SOL database. They have the option to define a specific low-light performance for the module. A specific low-light characteristic curve is then calculated for the module. If a manufacturer does not do this, a standard low-light performance for the respective module type, e.g., monocrystalline, must be assumed. The low-light performance used for the selected modules can be found in the database. Example module (600 Wp) with specific low-light performance Example module (600 Wp) with standard low-light performance
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Losses during charging/discharging The efficiency curve of the battery system determines the losses that occur during the conversion of electrical to chemical energy and vice versa: Battery losses The battery's internal resistance and self-discharge rate determine the losses that arise from aging processes:
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The reduced feed-in power can be entered in relative (in %) and absolute (in kW) terms. If you enter an absolute amount for several inverters of different sizes, this is converted by the software into a relative amount and distributed accordingly to all inverters. Small inverters are still penalised compared to large inverters because the small inverters are curtailed first when very small quantities are curtailed.
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How can I use my own company logo in the project report?
hotline_oh posted a question in FAQ (Read only)
You can import your logo under "Options" → "User". Supported file formats are *.gif, *.bmp, *.png, and *.jpg. However, T*SOL only supports logos in bitmap format (*.bmp).
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The unit of the currency in the program depends on the system settings of your operating system and can be changed in the Regional and Language Options of the Windows Control Panel.
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In the window "System Type, Climate and Grid" under "AC Mains" you will find the settings for the maximum feed-in power clipping and for the displacement power factor cos φ:
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Installation Problems If you receive error messages during the software setup, please send us a screenshot of the error message via e-mail. Please note the following: Are you using the correct version? We provide the latest version of our software on our website. Your user license is valid for program versions from 2025 Release 1 onwards. Older program versions cannot be activated with a user license. Are you using the correct software? Some users confuse PV*SOL and PV*SOL premium. Has your license manager prompted you to register as a license user in our license portal? Have you registered and been assigned a valid license? You can find step-by-step instructions for using a user license in our help section, and further information can be found in the FAQs for the new licensing model.
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This message means that an important hardware feature for the 3D display is not available on the graphics card being used. Possible reasons: DirectX version lower than 9.0c. DirectX 9.0c is not supported by your graphics card. You are using a terminal server solution. The DirectX graphics component is not capable of running on a terminal server. You are using a Windows emulator. Not all Windows emulators support DirectX. Your graphics card does not support all required 3D accelerations. In many cases an update of your graphics card drivers can help.
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The download of the new software release stops during the automatic update process. I got the message "The operation timed out" or "the time limit is reached". What can I do? The program needs a relative constant and stable internet connection. If this is not guaranteed, then the program aborts the download of data. Alternatively you can also try to download the latest program version from the download section of our webpage: http://www.valentin-software.com/en/downloads/products Please execute the downloaded setup file. The old program version doesn't need to be uninstalled.
