legal notice

Reponsible for Content:

vortex energy holding ag
Obere Königsstr. 30
34117 Kassel

Phone: +49 561 450 798 0
Fax:       +49 561  450 798 15


Chairman of the Supervisory Board:
Werner Diwald

Managing Board:
Dr. Till Jeske (CEO)
Adam Pantkowski
Dr. Florian Leuthold

Commercial Register: HRB 15911
Registered Office: Kassel

VAT Registration Number: DE288399540



1. Content of the online service

The authors cannot guarantee the currency, accuracy, completeness or quality of the information provided. Claims against the authors that relate to material or immaterial damage that was caused by the use or failure to use the information provided or by the use of inaccurate or incomplete information are excluded as a matter of principle, provided that it cannot be demonstrated that the authors are guilty of wilful or grossly negligent action. All offers are subject to change and are non-binding. The authors expressly reserve the right to change, add to or delete parts of the site or the whole service, or to suspend its publication temporarily or permanently.

 2. References and links

In the case of direct or indirect references to external internet sites (“links”) that lie outside the sphere of responsibility of the authors, liability can only be accepted if the authors are aware of the content of such sites and if it would be technically possible and reasonable to prevent their use in the event that they publish illegal material. The authors therefore expressly confirm that at the time at which the links were created the linked sites in question did not contain illegal materials. The authors have no influence over the current or future design and content of the linked sites. They therefore expressly disassociate themselves herewith from all content of linked sites that has been changed since the links were created. This statement applies to all links and references in their own internet service and to external entries in guest books, discussion forums and mailing lists set up by the authors. The providers of the sites to which reference is made are solely liable for illegal, inaccurate or incomplete material and in particular for damages that arise as a result of the use or non-use of information presented in this way; those who simply make reference to the published material in question by means of links cannot accept any liability.

3. Copyright and Trademark Law

The authors have made every effort to observe the copyright for the graphics, sound files, video sequences and texts used in all publications, to use graphics, sound files, video sequences and texts created by themselves or to draw on graphics, sound files, video sequences and texts that are not under licence. All of the brand name and trademark rights specified on the internet site and, as appropriate, protected by third parties are subject without restriction to the provisions of the relevant trademark law and the rights of ownership of the relevant registered owners. The conclusion should not be drawn from simple mention of a brand name that it is not protected by third party rights! The copyright for published items created by the authors themselves remains exclusively with the authors of the site. The duplication or use of such graphics, sound files, video sequences and texts in other electronic or printed publications is not permitted without the express consent of the authors.

4. Legal Force of this Disclaimer

This disclaimer is to be regarded as part of the internet site from which reference is made to this page. If parts or individual formulations of this text do not, no longer or no longer completely correspond with current legislation, the content and validity of the remaining parts of the document remain unaffected.


Use of Cookies

  1. The website uses “cookies”, text files which are saved on your hard drive. This text file contains information about your visit on our website. The file can only be read by “” after saving. Other websites cannot look at or process this saved data. By the same token “” cannot read any cookies, which have been saved on your hard drive by other websites that you have visited.
  2. You may prevent installation of cookies via appropriate setting of your browser software. However, we point out to you that in this case you may possibly be unable to use all functions of this website in their completely.


Privacy Policy

We take the protection of your personal data very seriously. We treat your personal data confidential and according to the legal data protection regulations and this Privacy Policy. The following statement provides you an overview of how we ensure the protection of your data. As a visitor to our website, we would like to explain to you which types of data we collect, why we do so and how we use this data.

The use of this website is usually possible without providing personal data. Personal data, such as names, addresses or e-mail addresses, are always provided on a voluntary basis if possible. Those data will not be passed on to third parties without your explicit permission. As described below, we will collect personal data, if you actively contact us. In these cases, personal data is only collected, processed and used for our own business purposes with regard to the care of our customers and prospects. We do not disclose personal data to third parties, whether for commercial nor non-commercial purposes.

You can withdraw your consent to the use of your data at any time with effect for the future. Send us an email with the subject “revocation” to info [at]


This website is encrypted using SSL (https). This means that your data are encrypted when being transmitted between your browser and our server. Data you have entered are thus protected from being viewed by third parties whilst being transmitted between your browser and our server.


This website uses so-called “cookies”. Cookies are text files saved on your computer which help the website analyze how users use the site. Information on users of this website created by the cookies is used in order to analyze user behavior on the website and to improve our offerings.

You may refuse the installation of cookies by selecting the appropriate settings on your web browser; however, please note that if you do this you may not be able to use the full functionality of this website. The data collection takes place anonymized; the data is not individual-related.

Privacy Policy for the use of Google Analytics

This website uses Google Analytics, a website analysis service by Google Inc. (“Google”). Google Analytics uses so-called”cookies”, text files that are stored on your computer to analyse your use of the website. The information generated by the cookie about your use of this website (including your IP address) is sent to and stored at a Google server in the U.S.A. If the IP-anonymisation is activated on this website, your IP-address will be shortened priory within the member states of the European Union or other contractual states of the Treaty on the European Economic Area. Only in exceptional cases your complete IP-address will be transmitted to a server in the U.S.A. and shortened there. Commissioned by the operators of this website, Google will use this information to evaluate your use of the website, to compile reports on website activities for website operators and to provide other services related to website and internet activities. Google will not associate your IP address with any other data held by Google. You may prevent the installation of cookies by adjusting the settings of your browser; however, if you do so, you may be unable to use all features of this website. Further, you may prevent the collection of data generated by cookies and related to the use of this websites by downloading and installing the plug-in under the following link: This website uses anonymous Google Analytics, the last digits of your IP address will automatically be shortened.

Data Protection Officer

It is important for us, that data processed properly and securely under applicable data protection laws. We have appointed an external data protection officer in order to be able to document this to external parties as well.

Datenschutzberatung Moers GmbH
Stephan Moers
Neue Str. 22
34369 Hofgeismar

You may reach Mr. Stephan Moers by email at