Data protection

Collection and processing of personal data

The four German transmission system operators appreciate your visit to the joint website and your interest in the topics published here. We take the protection of your personal data seriously and want you to feel safe and comfortable when visiting our website. We treat your personal data confidentially and in accordance with the statutory data protection regulations of the EU General Data Protection Regulation (GDPR) and the German Federal Data Protection Act (BDSG) as well as this privacy policy.

The following information provides you with an overview of the processing of your personal data by us and your rights.

1. Who is responsible for data processing and who can I contact?

The responsible body is:

50Hertz Transmission GmbH
Heidestraße 2
10557 Berlin 
Telefon: +49 (0) 30 - 5150 – 0 
Telefax: +49 (0) 30 - 5150 – 2199 

You can reach our external data protection officer at

Dipl.-Inform. Udo Wenzel
Agentia Wirtschaftsdienst
Budapester Str. 31
10787 Berlin
Telefon: +49 30 2196 4390
Telefax: +49 30 2196 4393

2. To whom does this privacy policy apply?

This privacy policy applies to all visitors to this website.

3. What data do we use?

In principle, you can visit our websites without disclosing your identity to us, unless you send us an e-mail or a message via a contact form or give us your consent to receive information material.

We only process the data required to answer your inquiry or to provide you with our information material. Which data is collected can be seen from the respective input forms.

4. For what purposes and on what legal basis do we use your data? 

We process your personal data in accordance with the provisions of the General Data Protection Regulation (GDPR) and the German Federal Data Protection Act (BDSG). Please also note our information on your right to object in accordance with Article 21 GDPR.

a) For the fulfillment of contractual obligations (Art. 6 para. 1b GDPR)

Personal data is processed for the performance of a contract and to take steps at your request prior to entering into a contract.

Use of our services

b) As part of the balancing of interests (Art. 6 para. 1f GDPR)

Assertion of legal claims and defense in legal disputes, ensuring IT security, responding to your request

c) On the basis of your consent (Art. 6 para. 1a GDPR)

If you have given us your consent to process personal data for specific purposes, the lawfulness of this processing is based on your consent. You can withdraw your consent at any time. Please note that the revocation only takes effect for the future. Processing that took place before the revocation is not affected.

d) Due to legal requirements (Art. 6 para. 1c GDPR) or in the public interest (Art. 6 para. 1e GDPR)

As a company, we are also subject to various legal obligations (e.g. German Commercial Code, tax laws).

5. Who receives my data?

Within the four German transmission system operators and other international transmission system operators, access to your data is granted to those bodies that require it to fulfill our contractual and legal obligations or as part of the balancing of interests. Service providers and vicarious agents employed by us may also receive data for these purposes if they comply with confidentiality and our instructions under data protection law. Data will only be passed on to third parties in accordance with the provisions of the GDPR and the BDSG.

6. Is data transferred to a third country?

Data is not transferred to countries outside the EU or the EEA (so-called third countries).

7. How long will my data be stored?

We process and store your personal data as long as it is necessary for the fulfillment of our contractual and legal obligations or in the context of the balancing of interests. If the data is no longer required for the fulfillment of these purposes, it is regularly deleted, unless its - temporary - further processing is required to fulfill retention periods under commercial and tax law, such as the German Commercial Code and the German Fiscal Code. The retention and documentation periods specified there are six to ten years.

8. What data protection rights do I have?

You have the right of access under Article 15 GDPR, the right to rectification under Article 16 GDPR, the right to erasure under Article 17 GDPR, the right to restriction of processing under Article 18 GDPR, the right to object under Article 21 GDPR and the right to data portability under Article 20 GDPR. You also have the right to lodge a complaint with a data protection supervisory authority (Article 77 GDPR in conjunction with Section 19 BDSG). A list of supervisory authorities and their contact details can be found on the website of the Federal Commissioner for Data Protection and Freedom of Information.

You can withdraw your consent to the processing of personal data at any time. Please note that the revocation is only effective for the future. Processing that took place before the revocation is not affected. Please also note our information on your right to object in accordance with Article 21 GDPR (point 11 on this page). To exercise your rights, please use the contact details above for our data protection officer.

9. Is there an obligation to provide data?

In the context of our contact forms, you must provide the personal data (marked mandatory fields) that is required to process your request. Without this data, we cannot accept and process inquiries.

10. Is there automated decision-making including profiling?

We do not use fully automated decision-making including profiling in accordance with Article 22 GDPR.

11. Information about your right to object in accordance with Article 21 GDPR

a) Right to object on a case-by-case basis

You have the right to object to the processing of your personal data on grounds relating to your particular situation. The prerequisite for this is that the data processing is carried out in the public interest or on the basis of a balancing of interests. This also applies to profiling. In the event of an objection, we will no longer process your personal data unless we can demonstrate compelling legitimate grounds for the processing of this data that override your interests, rights and freedoms. Or your personal data is used for the establishment, exercise or defense of legal claims.

12. What data is processed when using the website?

a) Usage-related information

We receive usage data when you visit our website. This includes information such as screen resolution, browser version, internet access, operating system, language, plug-ins used, origin by country/region and search engines. The stored data is only evaluated for statistical purposes and to optimize our websites. It is not passed on to third parties or evaluated on a user-related basis. Furthermore, we store the connection data to our websites (IP addresses) for a short period of a few days to ensure IT security.

b) Use of cookies

When individual pages are accessed, so-called "session cookies" are used to facilitate navigation. These cookies expire at the end of the session and do not contain any personal data, i.e. the contents of the cookies are not evaluated on a user-related basis. You can set your browser to allow cookies only in individual cases or not at all.

Cookies that are required to carry out the electronic communication process or to provide certain functions are stored on the basis of Art. 6 para. 1 lit. f GDPR. In this case, cookies are stored for the purpose of providing our services in a technically error-free and optimized manner. If cookies are deactivated, the functionality of this website may be restricted.

c) Cookie consent with Usercentrics

This website uses Usercentrics' cookie consent technology to obtain your consent to the storage of certain cookies on your end device and to document this in compliance with data protection regulations. The provider of this technology is Usercentrics GmbH, Rosental 4, 80331 Munich, Germany, website: (hereinafter "Usercentrics").

When you enter our website, the following personal data is transmitted to Usercentrics:

  • Your consent(s) or the withdrawal of your consent(s)
  • your IP address
  • Information about your browser
  • Information about your device
  • Time of your visit to the website

Furthermore, Usercentrics stores a cookie in your browser in order to be able to assign the consents you have given or revoke them. The data collected in this way is stored until you ask us to delete it, delete the Usercentrics cookie yourself or the purpose for storing the data no longer applies. Mandatory statutory retention obligations remain unaffected. Usercentrics is used to obtain the legally required consent for the use of cookies. The legal basis for this is Art. 6 para. 1 sentence 1 lit. c GDPR.

You can change your cookie settings at any time.

13. How secure is my data?

50Hertz Transmission GmbH uses technical and organizational measures to protect your data against unauthorized access, loss or destruction. A transfer of personal data by 50Hertz Transmission GmbH only takes place in encrypted form.

14. Links to websites of other providers

Our website may contain links to websites of other providers for informational purposes, where we have no influence on compliance with data protection and security regulations. Our data protection declaration therefore does not extend to these websites.

Status: February 2024