Transparency software makes it possible for you, the consumer, to check the validity of digitally signed meter readings taken during EV charging procedures. This enables you to ensure that the quantities invoiced to you have not been manipulated by third parties.
The use of the transparency software is free of charge for consumers, mobility providers and charging station operators. This was made possible through co-financing from the leading providers in Germany. However, manufacturers who want to use the transparency software as part of type examination will require a licence.
If your invoice for a charging procedure was issued on the basis of digital signatures you can obtain this digital signature information from your mobility service provider (the biller). Please ask them to provide the required digital signature data in a format that is compatible with the transparency software. The meter readings may also be made available for download from a customer portal or a mobile application.
Please note that the mobility provider is responsible for providing the digital signature data.
When checking meter readings you must be able to ensure that the transparency software you are using is the current version, is authorised for your use and has not been altered technically. For this reason, the checksum of the application is provided here. You can determine the checksum, for example, via the command line, using the following command:
CertUtil -hashfile C:TEMPtransparenzsoftware.jar SHA256
Linux-Systeme oder Apple Macintosh
The checksum of the current software version is:
The checksum of the current documentation is:
After you have downloaded the application to your PC open the transparency software with a double click.
Select the meter readings available to you using the 'File' / 'Open' function and enter the charging station's public key.