Data Protection

Gas Storage CZ on Data Protection

Thank you for your interest in our company. Your privacy is important to us, and you should always feel safe and comfortable when visiting our website. That’s why we have put both technical and organisational measures in place to ensure we observe the relevant legislation at all times. This document describes the information we may gather and what we do with it.

Gas Storage CZ, s.r.o. is responsible for the content and services made available on this website.

Gas Storage CZ, s.r.o.
Limuzska 3135/12
108 00 Prague 10

If you have any questions about data privacy at the Gas Storage CZ, please contact us at:

Personal data

You alone decide whether or not to provide us with your personal data, e.g. as part of a registration process or contact enquiry. In general we will use your personal data to help us answer your enquiry, process your order, or give you access to special information, products or services.

When you register, submit a contact enquiry, etc., you may voluntarily make personal data available to us. This may mean we have to communicate your data to a Group member company. Your data is not shared with third parties outside the Group unless this is expressly required under the terms of your enquiry or the product or service you request. You will be advised of this at the appropriate point. If you wish, you can also provide us with personal data via applications incorporated in our platform (e.g. contact forms or services for which you need to set up a user account). The use of these applications may be subject to conditions that differ from this Privacy Information. We will expressly draw your attention to this by way of additional privacy clauses. Art. 6 para 1 (b) of the EU General Data Protection Regulation (GDPR) serves as the legal basis for the processing of personal data for the performance of a contract to which you are a party. Cases in which we need to obtain the consent of the data subject to process his or her personal data are governed by Art. 6 para 1 (a) GDPR.

General information

If you access our websites or view a file, data relating to this process will be stored in a log file on our web server. Apart from your IP address, this data is not linked to you personally. We therefore cannot identify which user viewed which data. But if you access our website, data transmitted to us by your browser is automatically gathered and stored.

This involves the following data:

  • The domain name of the website you came from

  • The websites that you visited in our system

  • The names of the files you viewed

  • The date and time you viewed a file

  • The name of your Internet Service Provider

  • And your PC operating system and browser version, as appropriate

  • The host name of the accessing computer

  • Language settings

This data is collected for security and/or statistical purposes and to optimise our Internet presence. This data is not attributed to specific people, and is not associated with other data sources. Data is saved for six months and then deleted. Your data is not disclosed to third parties. In exceptional cases we may be obliged to release personal data only when ordered to do so by the competent authorities, if required in order to avert a risk, for law enforcement purposes or for other reasons as determined by the law.

IP addresses

We deliberately avoid logging IP addresses in clear text when you use our websites. Before being saved in our web server log file, your IP address is pseudonymised using a process that complies with privacy requirements. We use the pseudonymised IP addresses to identify and counter attacks, for example, or to draw up web statistics.

Web analysis and web optimization using Cookies and tracking pixels

We use Cookies and tracking technologies on our websites. These are used to optimise our website, to refine our services and for marketing purposes. The following describes these technologies and how they work.

When you visit one of our websites, we store information on your computer in the form of a cookie, which we automatically recognise on your next visit. Cookies are text files that are stored either in your web browser, or by your web browser on your computer. Viewing a website may store a cookie on your operating system. This cookie contains a characteristic sequence of characters that enable the browser to be clearly identified when the website is viewed again.

Using cookies helps us to give you unrestricted use of our website. They let us ensure your visit to our website is as convenient as possible. For example, they help us to adapt a website to your interests, or save your username to avoid the need to enter it again every time you visit.

We also use tracking pixels on our website. Tracking pixels are small graphics on websites that enable log files to be recorded and analysed. When you visit a website, tracking pixels record information in the cookie file in your browser. Using pixels lets us show you targeted information and content.

Our websites give you the option of viewing and adjusting our cookie and pixel settings. Please note that certain cookies and pixels are required for technical reasons to ensure our website continues to function correctly.

We make use of processors as per Art. 4 no. 8 GDPR for the operation and use of cookies. In some circumstances the processors may have access to your personal data that is gathered and processed using cookies and pixels.

See here for an overview of the cookies and pixels used on our websites, the data processed in each case and the relevant recipients.

Gas Storage CZ uses cookies and pixels of the following categories:

Essential cookies and pixels

Essential cookies serve to maintain the technically sound operation of our website. They ensure the stability of the website. You can see which essential cookies we use from our full List of Cookies and Pixels, available here.

The data collected about you in this way is pseudonymised by technical measures to ensure it can no longer be traced back to you. This data is not stored with other personal details we collect from you. When you access one of our websites, you will be informed via a banner message about our use of cookies and also referred to this Data Protection Information. In addition, reference will be made in this context to the method you can use to block the storage of cookies in your browser settings.

This processing of your aforementioned data is necessary to safeguard the legitimate interests of Gas Storage pursuant to article 6 paragraph 1f GDPR and is justified by balancing the respective interests in favor of  Gas Storage CZ. Without using this data, some functions of our internet presence cannot be offered. It is essential for this process that the browser is also recognisable after you have switched pages. Gas Storage CZ also has a legitimate interest in processing your aforementioned personal data; namely to communicate relevant information about our intentions and business activities by operating its own websites in accordance with their intended function. Your justifiable interest that the aforementioned data is not used for this purpose does not outweigh the legitimate interest of Gas Storage CZ, since Gas Storage CZ uses this data appropriately and in accordance with the stated purpose and you also have an interest in being able to access our website in a customer-friendly manner.

You have the right to object at any time to the processing of your data on the basis of a balancing of interests, if your particular situation provides grounds for objection. Please refer to the section on objections in this regard.

Analytical cookies

In addition, we use cookies on our website that enable us to analyse the browsing behaviour of our users. Analytical cookies help us analyse the website and thus measure and improve the performance of our webpages. In this context we use cookies for the purpose of “reach measurement”. We use these cookies to create statistical profiles which cannot be traced back to individual users, but merely to groups. They are used to analyse visitor and click behaviour as well as demographic characteristics of website users. The cookie and pixel list, which can be viewed here, provides information about the analytical cookies we use and from there you can also opt out of all or specific cookies and pixels being used when you visit our website. Data that is collected from you in this way is pseudonymised by technical processes, making it impossible to reallocate the collected data back to you. We do not store this data together with any other, personal data that you provide to us. When accessing our websites, an information banner is displayed, informing you about the use of cookies and referring to this data privacy policy. In this context we also provide information as to how the use of cookies can be blocked through the settings of your web browser.

When accessing our websites, our “cookie banner” with information on the use of analytical cookies is displayed, asking for your consent pursuant to article 6 paragraph 1a GDPR to process the personal data collected in this context. During this process, you are also referred to this data privacy policy. The legal basis for us to process personal data for analytical purposes using cookies and pixels is your consent. 

You are entitled to withdraw this consent at any time with future effect. The withdrawal of consent shall not affect the lawfulness of processing based on consent before its withdrawal. The easiest way to withdraw your consent is to set the relevant opt-out cookie/pixel via our cookie and pixel list here.

Non-essential cookies and pixels

Non-essential cookies and pixels include marketing cookies, social media cookies and the LinkedIn Insight Tag for conversion tracking. When you view our websites, our “cookie banner” will be displayed, showing information on the use of non-essential cookies, and you will be asked for your consent pursuant to Art. 6 para 1 (a) GDPR to process the personal data collected in this context.

Marketing cookies help us to personalise ads displayed on your device within and outside of See the list of cookies and pixels here for details of the marketing cookies we use.

In this context we also use cookies for the purpose of “remarketing”, “retargeting” or “lookalike retargeting”. Once it has the relevant information, the cookie makes it possible to recognise your browser again and show you ads from external websites you have visited previously (“retargeting”). In addition, “statistical twins” of the original cookie profiles are identified and targeted based on accumulated cookie information. This process is called lookalike retargeting.

In this context we also use a “dynamic tracking system”. This is intended to identify services from different advertising channels of the RWE web shop. When you visit our web shop, data from your browser is collected for statistical analysis. The data is passed on to various technical and statistical service providers so they can process it on our behalf. Data collection takes place via a pixel that is embedded on each web shop page.  

We also use cookies in this context for “behavioural advertising”. On our websites, data with usage information (e.g. websites visited, number of visits, times of visits, time spent on individual pages) is stored in cookies on your hard drive. These usage profiles are anonymised and analysed using a technical (statistical) process, so that the selection of Internet advertisements (e.g. banners) can be based on your interests when you visit other websites later. Behavioural targeting is provided by third-party companies listed here that also provide advertising services for websites of other suppliers. These third-party companies then use cookies to compile the user profiles described above and select relevant data for user-driven advertising via their own targeting systems.

Social media cookies enable you to connect directly to your social media account if and when required. This is a convenient way for you to share websites and post comments in social networks. See the list of cookies and pixels here for details of the cookies we use, and the opportunity to opt out of all or specific cookies and pixels.

We also use cookies for social media targeting. With these cookies, we can exchange data with social media companies (e.g. Google or Facebook) using a hash value in order to display personalised content for you in banners and ads. Neither we nor our service providers can identify you based on the data. Behavioural targeting takes place in three stages: data collection via “tracking pixels”, storage and processing of log file information, and finally using this information when you return, for retargeting or lookalike retargeting.

On our website we also use the LinkedIn Insight Tag for conversion tracking from LinkedIn Ireland Unlimited Company (Attn: Legal Dept., Wilton Plaza, Wilton Place, Dublin 2, Ireland; “LinkedIn”). The LinkedIn Insight Tag places a unique LinkedIn browser cookie (conversion cookie) in your browser, which enables the following data to be gathered: metadata such as your IP address, timestamp, and page events (e.g. page views). These cookies are valid for only a limited period. If you visit particular pages on our website and the cookie has not yet expired, we and LinkedIn can tell that you have clicked on the advertisement and were redirected to this page. The LinkedIn Insight Tag also enables LinkedIn to gather data on visits to our website, including URL, page views, IP address, device and browser properties, and timestamp. LinkedIn then deletes this remaining pseudonymised data within 90 days. LinkedIn shares no personal data with us, providing only summarised reports on the target website group and the advertisement service. LinkedIn members can set how their personal data is used for advertising purposes in their account settings. The information obtained using the conversion cookie is used to draw up conversion statistics. These tell us the total number of users who clicked on one of our advertisements and were redirected to a page containing a conversion tracking tag.

Your consent is required for data processing, particularly the setting of cookies. You are entitled to withdraw this consent at any time. The withdrawal of consent shall not affect the lawfulness of processing based on consent before its withdrawal. See and for further information on cookies and LinkedIn’s own privacy policy.

Non-essential cookies/pixels are only activated and transmit data if you have given your consent to do so via the settings in the cookie law banner. When you view our websites, our “cookie banner” will be displayed, showing information on the use of non-essential cookies, and you will be asked for your consent to process the personal data used in this context. During this process, you will also be referred to this Privacy Information. Your consent provides the legal basis for us to process personal data using non-essential cookies and pixels.

You are entitled to withdraw this consent to use your personal data at any time with future effect. The withdrawal of consent shall not affect the lawfulness of processing based on consent before its withdrawal. The easiest way to withdraw your consent is to set the relevant opt-out cookie/pixel via our cookie and pixel list here.

Length of Storage

Analytical Cookies 24 Months

Non-essential cookies and pixels 3 Months

Session Cookies 24 Hours

Session cookies are small units of information which we store in the working memory of your computer. A randomly generated, unique identification number forms part of a session cookie and is called the Session ID. Each cookie also contains the details of its origin and storage period.


Unless they have permission from their parents or guardians, children should not submit personal details to RWE websites. RWE recommends that all parents/guardians instruct their children about how to deal safely and responsibly with personal details on the Internet. In any case, RWE will not deliberately collect personal details of children or in any way use or disclose such information to third parties without authorisation.


RWE has procedures in place to guarantee the security of your personal data. All efforts are made to protect your data against loss, destruction, forgery, manipulation, unauthorised access and unauthorised disclosure.

Links to other websites

RWE websites contain links to other websites. As the provider of our websites, we are solely responsible for the content of our own online presence. Our own content must be distinguished from content created by other providers, for which we cannot assume responsibility or ownership. We have no control over whether the linked website operators comply with the relevant privacy regulations. This Privacy Information therefore does not apply to websites of other providers, even if you view them via links on our website. Your attention is drawn to the privacy provisions of the other providers in each case. No liability on our part will be assumed for the content of third-party websites. Please advise us if you discover any relevant violations. We will inspect the links and remove them as appropriate.

Microsoft Application Insights

Application Insights is a service of the Azure cloud platform of Microsoft Corporation, One Microsoft Way, Redmond, WA 98052-6399, USA ("Microsoft"). This service collects telemetry data from the application being used. This data is anonymous statistical data. It is not possible to establish a personal reference based on this data. The IP address used by the user is shortened and thus anonymized. The legal basis for the processing of the users' personal data is the Legitimate Interest (Art. 6 para. 1 lit. f DSGVO). Raw telemetry data is deleted after 90 days.

Information about Application Insights can be found here.

Google Services

We have integrated Google Maps on our website via an API. The service is provided by Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland. Its parent company is Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA. Further information on data processing by Google can be found in the Google Privacy Policy.

1.    Which of your personal data is used by us?

To be able to display the content in your browser, Google must receive your IP address and location data, otherwise Google would not be able to provide you with this embedded content. The generated information is transferred to a Google server in the USA and processed there.

2.    What are the sources of the data?

The data is collected from you.

3.    What do we process your data for and on what legal basis?

We need the data so that we can offer the Google services. When you visit our websites, our cookie banner informs you about the use of Google services by referring to this data protection information. If you agree to the processing, you click on this cookie category and thereby give your consent, which serves as a legal basis, in accordance with Art. 6 para. 1 lit. a) GDPR.

4.    To whom will your data be passed on?

With your consent, the data will be passed on to Google.

5.    How long will your data be stored?

Google stores your data. For more information visit their data protection information here.

6.    Is there an obligation to provide your data?

There is no obligation to provide the data.

 Questions and comments

You have the right to obtain information from us without charge regarding your saved personal data, and to object to the processing or use of your data. You can also assert your rights to have your personal data blocked, deleted or corrected. Contact us at if you have any questions or suggestions regarding privacy.

You have the right to object at any time to the processing of your data on the basis of a balancing of interests or in the public interest if there are reasons for doing so which arise from your particular situation. This also applies to profiling based on this provision.

If you file an objection, we will no longer process your personal data unless we can prove imperative grounds for processing worthy of protection which outweigh your interests, rights and freedoms, or the processing serves the assertion, exercise or defence of legal claims.

Objections can be made without form and should be addressed where possible to:

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