Information on the cookies of Iberdrola Energie

Deutschland GmbH - Cookie guideline

Data controller

The data controller is Iberdrola Energie Deutschland GmbH, based at Charlottenstraße 63, 10117 Berlin, Germany.

On cookies and web beacons

Cookies are small data files frequently used in the user's browser to store, retrieve or update information. They enable the website operator to learn the users' preferences when they use this website, and to personalist the service offered on the basis of these preferences.

We use our own cookies and cookies from third party providers. These enable us to analyse and measure the use of the website in order to ensure that the website's functions are running correctly and to improve our services.

Among the third party cookies used on the IBERDROLA website, which are used to obtain information on visitor traffic, to measure and analyse surfing habits and to personalise certain services, are cookies from Google Universal Analytics and Optimizely. The latter obtain access to the data collected by their cookies.

Web beacons are similar items that are installed in the user's browser for various purposes. They consist of small image files (also known as pixel tags or clear GIFs), which may be contained in our web pages, services, applications, message functions and tools. To monitor visitor traffic, we use only first-party web beacons.

Categories of cookie used

The cookies used by our website may be classified as follows, according to their respective purposes:

1. Technical cookies are required for surfing activities. Without these, the website does not function correctly (user input cookies for online shopping baskets, multimedia player and session cookies, etc.).
2. Customisation or configuration cookies (also technical cookies); these enable the website to recognise the user language, the font size, etc.
3. Security cookies; these hinder or prevent attacks on the website or its users.
4. Analysis cookies; these make it possible to measure user activities and generate surfing statistics.
5. Advertising cookies; these manage the frequency and content of advertisements.
6. Profiling cookies; these store information on users for the purpose of personalised advertising. Pursuant to sections 15(3) and 13(1) of the German Telemedia Act (TMG) of 26.02.2007 (Federal Law Gazette [BGBl.] I, p. 179), Iberdrola Energie Deutschland GmbH informs the users of the website that it uses profiling cookies which require prior consent. This consent can be granted via the mechanisms contained in the information banners displayed on the landing page of the website. Profiling cookies can be used to track the users' surfing activities and create profiles of their preferences, habits, choices, etc.

Control of the use of the cookies and web beacons

If you wish to remove the cookies and web beacons installed on your computer, you can do this in your browser as well as with the mechanisms described in this cookie guideline. You can find instructions on how to do this in your browser help menu. You can get further information through the following links:

Internet Explorer

Mozilla Firefox

Google Chrome


Cookies used

Pursuant to section 13(1) of the German Telemedia Act, the users of the website are informed by Iberdrola Energie Deutschland GmbH that the following cookies, specifically, are used.

Various types of cookies are used on our website for various purposes. In particular, our website uses cookies and similar technologies for technical and other purposes: Whereas technical cookies are used to the extent that they are absolutely necessary, as described above, for the technical functioning of the website and the provision of the services expressly requested by the users (such as login, choice of language, etc.), the cookies and similar technologies which are used for other purposes (such as profiling cookies and technologies, analysis cookies, advertising cookies) are used to perform analysis of user behaviour on the website, in order to improve the content of the website and to send advertising messages that match the preferences indicated by the users during surfing.

The various cookies used by us and the mechanisms for disabling them are indicated below.

Technical cookies

  • JSESSIONID recognises a user session and expires when the session is ended.
  • leyAnticookies are generated for all users who accept the cookie IBERDROLA's cookie guideline. They last for one year.
  • NSC: supports visitor traffic on the website by increasing server capacity. They expire as soon as the session is ended.

Third party analysis cookies


  • _ga uses an anonymous identifier to differentiate anonymous users and conducts analyses of user interactions during use, in order to optimise the services offered. This cookie lasts for two years.
  • _gat is used anonymously to differentiate the various surveillance elements created during the session. This cookie lasts for ten minutes.
To obtain further information on the data collected by Google Analytics via its cookies and on the use of these data, please visit the Google Analytics data protection page and the respective cookies options on the following link:

Profiling cookies

Our website uses both first-party and third-party profiling cookies and similar technologies to improve the content of the website and send users advertising messages which match the preferences indicated in their surfing behaviour.

First-party profiling technologies first-party web beacons and similar technologies to create user profiles. These technologies specifically consist of small image files (also known as pixel tags or clear GIFs), which may be contained in web pages, services, applications, message functions and tools, and which we use to count the number of users who have visited our website or have called up the content of our messages. This enables us to collect statistical information and also to identify features and content of particular interest to the individual users, in order to offer the users personalised information and content.

If you wish to object to the use of these technologies, click on the following links:

Internet Explorer

Mozilla Firefox

Google Chrome


Third-party profiling cookies


The Optimizely service contained in uses various cookies to identify the browser type used by the users and to observe the surfing behaviour of the user on the website. You can get further information on the use of the data collected by Optimizely at: following cookies are used:

  • optimizelyEndUserID stores the end user's unique ID. This cookie lasts for ten years.
  • optimizelySegments stores information on the user's attributes and preferences, such as browser, campaign, type of device, configuration and type of script. This cookie lasts for a maximum of ten years.
  • optimizelyBuckets stores information on the page changing undertaken by the individual users. This cookie lasts for a maximum of 10 years.
  • optimizelyRedirect and optimizelyPendingLogEvents are used as caches for the activities performed by the user. They last for five to 15 seconds.

These cookies are based on anonymity and do not collect any user information. They can be disabled at any time using the instructions provided at

More information on cookies

The website contains detailed information on managing the cookies used in most browsers; alternatively, you have the option of inspecting the information and documentation relating to the software used on your device.