Resources

Additional resources that support our products.

Home Resources General Frequently Asked Questions

General Frequently Asked Questions

Transferring software licenses

General Questions

Software Questions

Climate Data

Technical Issues

General Questions

Software Questions

Climate Data

  • Which climate data files are delivered with the software, and what is the source of the data and the historical period upon which it is based?

    All current Valentin programs come with the same initial selection of climate data files. In addition, most versions of the programs include the climate data generator MeteoSyn, which can be used to create additional climate data files including of your own source providing it is in monthly format. Further hourly climate files can be directly imported.

    The source of the weather data is often indicated in the PV*SOL climate data database and this varies across the world. Where no reference is obvious, this is normally a data set from Meteonorm in Switzerland. PVGIS or NASA data is sometimes also used. Where original data is in monthly format, MeteoSyn uses an algorithm to produce hourly values using a mathematical model called INSEL.

    The historical period of data collection or observation varies but is almost always an average taken over a time-span of at least 5 years. For prediction into the future, long-term historical averages tend to be more reliable.

    Back to top

  • Is it possible to use my own climate data?

    Yes, this is possible if it is in monthly format in the current versions of PV*SOL and T*SOL. You can also directly import hourly data if in the format of WBV, DWD or Meteonorm (*.dat)

    Back to top

  • After the climate data has been installed it is not shown in the program. What should I do?

    If the program is still in demonstration mode then you may not be able select other climate files. Check under the Help menu for whether it is fully registered. The MeteoSyn module will also not work fully if there is no Internet connection. This may be because the connection has been blocked by a firewall.

    If these do not resolve the problem, please try reinstalling the software.

    Back to top

Technical Issues

  • The program help is not displayed under Windows Vista and Windows 7. What do I do?

    To display the help function the Windows program WinHlp32.exe is required. Please follow the instructions from Microsoft.

    For Windows 7 (32 bit) go to:

    www.microsoft.com/downloads/en/details.aspx?FamilyID=258aa5ec-e3d9-4228-8844-008e02b32a2c&displaylang=en

    For Windows Vista go to:

    www.microsoft.com/downloads/en/details.aspx?displaylang=en&FamilyID=6ebcfad9-d3f5-4365-8070-334cd175d4bb

    Back to top

  • After starting the simulation, a message appears that the wPDF200A.dll file is not available. What can I do?

    The wPDF200A.dll file is required in order to create the Project Report in PDF format. The file is a part of Microsoft Windows Systems. Please copy the wPDF200A.dll file via the following link: http://solar-software.de/downloads/support/wPDF200A.dll and paste it into C:\WINDOWS\system32 or C:\WINNT\system32, depending on your Windows System.

    Back to top

  • I got the message "The operation timed out" or "the time limit is reached" when downloading a new software release through the automatic update process. What does this mean?

    The program needs a relative constant and stable internet connection. If this is not guaranteed, then the program aborts the download of data. You can try to download the latest program version from the download section of our webpage. Please execute the downloaded setup file. The old program version doesn't need to be uninstalled. Some browsers such as Internet Explorer handle the download process better than others.

    Back to top

  • I have an unresolvable error. I have been advised to fully uninstall and reinstall the program. How do I do this?

    If an error persists and the cause cannot be easily determined, follow these steps:

    First steps:

    Reinstall program without uninstalling previous version. Ensure you place the downloaded *.exe installation file somewhere on your local hard drive and not on a server drive. Then run the *.exe file to reinstall the program.

    There are also options to re-install databases under the Help menu. Always try these options first before a full uninstall.

    Uninstall and Reinstall:

    A full uninstall may cause the re-activation limit to cut in with a warning message. In this case, Contact Us. A simple uninstall can be done first using Windows Control Panel. Failing that, do as follows but first ensure any project files are securely backed up:

    - shut down all applications and search the entire computer for any 'All files and folders' for directories that incorporate 'Valentin'

    - use the Refine Search option for including hidden and system files.

    - consider if a backup of any files that are about to be deleted is needed. In which case copy and paste all found files into a temporary directory.

    - delete all folders/directories called 'Valentin *****'.

    - reboot computer and reload program from the downloaded .exe file stored temporarily on the desktop.

  • How do I print replacement acetates for the Solar Site Selector?

    Because all printers and graphic software is different, we cannot prescribe any one method or scale to use for printing acetates. We suggest you do a few trials using just white paper adjusting the print size via whatever software you use to print graphics. Most PCs have Microsoft Paint as a free program which has a 'Resize icon in the menu.

    Back to top

  • Upon starting a program download, why do I get a message 'The signature of this program is corrupt or invalid'

    This is a known Microsoft Explorer issue KB2870699 'Breaks IE MSI signature validation' and KB2870699 'Causes Signature Verification Issue'.

    It can be resolved by using a different download location; using a different browser; or following workarounds suggestions given by searching the above terms.

    Back to top

Transferring software licenses

  • How do I transfer my license of Valentin software (PV*SOL, T*SOL, GeoT*SOL) to another computer?

    You may wish to transfer a license because:

    • You have a new PC
    • Change of user
    • Hard drive replacement of existing PC
    • Hard drive reformatting of existing PC

    When you made the original full installation you were ultimately asked to activate the program. Activation generates a unique keycode for each installation. You will not be able to make a second full installation of a licence by simply copying the same original activation keycode (even if you try to install it on the same computer). You will however need the longer serial number and ideally this should first be recorded possibly via a screenshot of the original installation under the Menu > Help. Alternativley the original email you received with the license serial number will be required.

    Before you can make a transfer, you will first need to request reactivation of the program. This will effectively disable the original activation keycode. This request can take more than a day to complete. Requesting reactivation will discontinue support of the original (current) installation. It is therefore not a facility for attempting to duplicate licenses and you should only request reactivation if you wish to transfer the license from one computer to another.

    Click here to request a reactivation

    NOTE: You will need to uninstall the original program from your PC before being able to make the new installation. Please let us know if you are unable to do this (e.g. because of theft or damage to the original PC). You should include 'unable to uninstall' in the box titled 'Reason for reactivating'

    After the request is sent you will eventually receive an email back with a download link. Ensure this is the correct trial version to be installed on the target computer you wish to transfer to and check as far as possible that it functions correctly in trial mode. If you wish urgently use or transfer a current program (i.e. not a legacy program) the current trial versions can be quickly obtained via the Contact Us page. For legacy transfer requests we will first check if you are eligible for an update.

    Please note: Old serial numbers that have already been updated cannot be re-activated. Instead you should use the new serial number that was sent as the replacement.

    Back to top

  • How do I transfer my license of HorizOn?

    You may wish to transfer a license because:

    • You have a new PC
    • Change of user
    • Hard drive replacement of existing PC
    • Hard drive reformatting of existing PC

    First ensure a demo version program is installed on the target computer you wish to transfer and check as far as possible that it functions correctly.

    When you made the original full installation you were ultimately asked to activate the program. Activation generates a unique keycode for each computer. You will not be able to make a second full installation of a licence by simply copying the same original activation keycode. You will however need the longer serial number and this should be recorded possibly via a screenshot of the original installation under the Menu > Help.

    Back to top

  • How do I transfer my license of Meteonorm?

    You may wish to transfer a license because:

    • You have a new PC
    • Change of user
    • Hard drive replacement of existing PC
    • Hard drive reformatting of existing PC

    First ensure a demo version program is installed on the target computer you wish to transfer and check as far as possible that it functions correctly.

    Meteonorm programs allow you to self-activate and de-activate licenses but you must deactivate the first installation online before you can activate the second installation.

    1) Deactivating a Meteonorm installation

    • Start Meteonorm program
    • Go to Help menu
    • Select 'Revoke registration' and confirm
    • You don't have to uninstall the residual program (which will revert to a demo version)

    2) Installing and activating a new Meteonorm installation (new or alternate PC)

    • Download the installation here
    • Move downloaded file to Desktop
    • Run file to install program (you might need administrator rights to do this)
    • Open the program (if not automatically opened)
    • Activate program using the original licence serial number

    3) If deactivation of the old installation of Meteonorm is impossible

    If you do not have access to the original installation (for example, because the PC has failed completely or has been stolen) then follow these steps:

    • Email support@meteonorm.com asking to revoke your registration
    • Include your original serial number in the email
    • Install Meteonorm on the new PC (see instructions above)
    • Register new installation with your licence serial number

    Back to top

  • How do I transfer my old settings and projects for Kesa aladin from one computer to another?

    Download and follow the instructions in this document here: Kesa settings and projects transfer

    Back to top


The Solar Design Company is a trading title of The Very Efficient Heating Company Limited.

Copyright © 2016. All Rights Reserved. The Very Efficient Heating Company retains rights to all the unique content published on this site. Any content seen on this site can not be reprinted, reproduced, or distributed without the expressed written consent of The Very Efficient Heating Company.

Registered company number: 04707083 (England and Wales) VAT number: 704128371