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Transparency Software

Within the framework of the S.A.F.E Initiative, has·to·be and Ebee are developing a cross-manufacturer transparency software for Electromobility. With this application, you can carry out the signature tests required by the calibration regulations for digital measured values.

Take part in the development now and save costs!

transparency software

Transparency software for Electromobility

The solution for calibration compliant operation of e-charging stations


The benefits for CPOs & MSPs

Your customers can be sure that they will receive from you an unadulterated bill of their electricity costs, and that you comply with the calibration regulations.

The benefits for charging stations manufacturers

Manufacturers can use the transparency software to successfully perform conformity assessment procedures.

The benefits for calibration authorities

Authorities use the transparency software in order to be able to carry out findings tests without any doubt.

What is a transparency software?

For many years now, consumer protection has been particularly important in Germany in order to ensure uniform and transparent invoicing to the consumer. In order to ensure this, the regulations committee of enquiry (REA) in its document 6-A has established uniform requirements for the collection of measured values at charging stations, so that a uniform framework condition is established throughout Germany. Based on these requirements, operators of charging stations are now required to implement the calibration requirements technically as well.

In addition to a local Storage and Display Module (SAM), the market uses the so-called “favourable solution in the sense of the calibration requirements" (GL). This is an end-to-end signature of recorded measured values, so that a consumer is able to check the correctness of the recorded values without any doubt. The transparency software checks the digital signatures of the measured values for correctness. It uses the signature data and the so-called “Public Key", i.e. the public key of the measuring unit, which is applied to the charging station. With the signature verification, it is finally possible for the consumer to check the measured values for correctness.

How does the signature verification work?

The charging device detects the measured values in the measuring unit and signs them digitally. The measuring unit itself is conformity tested, i.e. a unit certified by an independent testing laboratory that fully meets the requirements of the Measuring and Calibration Act. The signed measured values are then transmitted to the power provider, who charges the charging process to the consumer. The power provider makes available to the consumer the measured values including signature. This can be done either in printed form on the invoice or in a record that the consumer can download from the provider's website.

The consumer downloads the transparency software provided by the power provider on his PC and starts it. Then they have the possibility to enter the data of the charging process in the transparency software. At the same time, it records the signature and enters the public key of the measuring unit. It can either be read directly from the charging station or retrieved from the public charging directory of the Federal Network Agency (BNetzA). The transparency software then performs the verification of the measured values and displays the result of the signature check to the consumer.

How much does the transparency software cost?

Manufacturers of charging stations need the transparency software in order to be able to carry out type examination certificates for their charging stations before putting them into operation. CPO and EMP require the transparency software in order to be able to invoice charging processes in accordance with calibration regulations. With an initial call, has·to·be offers the chance to divide the costs of the development of the transparency software and the certification across all participating companies. This means that the total cost of approximately € 90,000 Euros will be allocated across all participating companies. Currently, 30 companies have agreed to participate. Thus, the cost per company is € 3,000 Euros net. With each additional participating company, the costs are again reduced proportionately. The opportunity is valid until 31.07.2018. Thereafter, a company license costs once € 3,500 Euros net.

Will the transparency software be available as Open Source?

has·to·be and Ebee have agreed to publish the transparency software at the latest by 30.06.2020 as an open source application. From this point on, the transparency software is provided under the GPL license. Until then, the software is licensed as a proprietary application.

How can I participate?

Would you like to use the transparency software cost-effectively? Then, participate in the development. Please complete the following contact form.
We will then send you the relevant contractual documents.

The S.A.F.E Initiative

The S.A.F.E Initiative is a merger of various German and international manufacturers, charging station operators and mobility service providers with the aim of providing a uniform solution for meeting the calibration regulations in Germany. A joint solution for Electromobility in Germany brings the consumer a simple and uniform way to check invoice data for validity.

Partner Companies of The S.A.F.E Initiative: