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Order your Twinsolar-System


A solar ventilation with an energy gain by Grammer Solar is simple and efficient in planning, installation and operation. Place your order for a system directly at our online shop and let it be installed by a local handyman. Experienced handymen can easily install a Twinsolar Compact on their own.

In case you should need professional support regarding construction or installation, you can gladly contact one of our partner companies in your area.
We would readily check up on your planning if you send us pictures and sketches of your house. For this reason, please order the item “Project consultation” in our online shop.

0 item(s) - 0.00 €

Privacy statement

Privacy statement

We are delighted that you have shown interest in our website www.twinsolar.de. The protection of your private sphere is very important for us. In the following we inform you in detail about how your data is dealt with when visiting our website, as well as use of the online shop on the website www.twinsolar.de
Data without personal references
You can visit our site without providing information about your person. We simply save access data without personal references (such as the name of your internet service provider, the page from which you visit us or the name of the folder requested). These data shall be analysed exclusively to improve our offer and do not allow any conclusions to be made about your person.
Personal data
Personal data will therefore only be gathered if you voluntarily inform us of this within the framework of your registration as a customer for the online shop and when placing an order or registering for our newsletter. We only use the data provided by you (such as title, name, address, date of birth, e-mail address, telephone number, fax number, bank details) without separate consent to fulfil and process the order. Your personal data shall only be collected, processed and stored by us according to the provisions of the German law on data protection (in particular the “Bundesdatenschutzgesetz” [Federal law on data protection] and the “Telemediengesetz” [law on telemedia]).
Passing on personal data
Your data will only be passed on insofar as this is necessary in order to fulfil the contractual relationship. In order to process payments, we pass on your payment data to the credit institution carrying out the payment. Your personal data will not be passed on to other third parties or be used for the purposes of advertising or similar without your express consent (e.g. regarding our e-mail newsletter).
With the full processing of the contract and complete payment of the purchase price, all personal data which you have communicated to us within the framework of the order through “www.porzellan-geschirr-shop.de” and/or “www.rollup-banner-shop.de” shall be blocked for further use and deleted after the expiry of tax and commercial law retention periods, insofar as you have not expressly consented to the further use of your data.
When you subscribe for the newsletter, your e-mail address shall be used for our own advertising purposes until you unsubscribe from the newsletter. It is possible to unsubscribe at any time.
Data security
Your personal data shall be transferred over the internet unencrypted or encrypted using 128 Bit SSL encrypting in the order process according to the method of payment. We secure our website and other systems through technical and organisational measures against loss, destruction, access, changes or processing of your data by unauthorised persons. In spite of regular checks and up-to-date technology, 100% protection against all risks online is not however practically possible.
Use of cookies
We use so-called “cookies” on various sub-pages of www.porzellan-geschirr-shop.de and/or www.rollup-banner-shop.de, in order to make our website attractive to visit and allow the use of particular functions. Cookies are small text files which are filed on your computer.
Most cookies used by us will be deleted from your hard drive after the termination of your browser visit (so-called session cookies). Other cookies store permanent data and in this way allow you to, for example, log in to our internet page as a registered user without having to submit your user name and password again. These cookies will be permanently stored on your computer and allow us to recognise your computer on your next visit (persistent cookies).
It is also possible to object to the collecting and storing of cookies at any time with future effect, in that you can stop cookies from being allowed if you wish through setting up your internet browser accordingly. In particular you can set up your internet browser as to whether you would like to allow cookies on your computer generally, that you will be informed about the application of cookies, and decide to accept them from case to case, or whether you fundamentally exclude the acceptance of cookies. If cookies are not allowed, the functionality of our site, in particular the functionality of the online shop, can be limited.
Information on Google Analytics
The website uses Google Analytics, a web analysis service from Google Inc. with registered seat in in 1600 Amphitheatre Parkway, Mountain View, CA 94043 USA (“Google”). Google Analytics also uses cookies, which will be stored on your computer and make it possible to analyse the use of the website by you. The information generated by the cookie about your use of the website (including your IP address) will be transmitted to a Google server in the USA and stored there.
Google will use this information to analyse your use of the website in order to compile reports about website activities for the website provider and in order to provide further services connected with its use and the use of the internet. Google will also transfer this information to third parties where applicable, insofar as this is required by law or if third parties process this data under contract to Google.
By using this site, you agree to the data about you gathered by Google being processed in the way described above and for the purpose mentioned above.
Finally we would like to point out for you that you can also totally prevent the recording of data produced by the cookie and related to your use of the website (including your IP address) by Google, as well as the processing of this data by Google, by downloading and installing the browser plugin available at the following link (http://tools.google.com/dlpage/gaoptout?hl=de).
We inform you that on this website Google Analytics has been extended with the code “grt._anonymizeIP();” in order to guarantee anonymised recording of IP addresses. On the basis of IP anonymisation being activated on this website, your IP address will be abbreviated beforehand by Google within the member states of the European Union or in other contracting states to the Treaty on the European Economic Area. Only in exceptional circumstances will the full IP address be transferred to a Google server in the USA and abbreviated there.
Facebook “Like” Button
The website also uses so-called plugins from the social network Facebook with registered seat in 1601 South California Avenue, Palo Alto, CA 94304, USA. All Facebook plugins used on this site are recognisable by the Facebook logo or the “Like” button. You can access a record of the plugins provided by Facebook possible on this page on the official webpage of the social network:
As soon as you visit our website, a direct connection between your browser and the Facebook service is produced through the plugin. In this way Facebook receives information regarding your IP address. If you click on the Facebook “Like” button while you are logged in to your Facebook account, you can embed the contents of our pages on your Facebook profile, in that the “Like” button is assigned e.g. a link to our page. As a consequence of this, Facebook can assign your person to the visit to our page through your user account with Facebook. We would like to expressly inform you that we as operator of the website neither have knowledge of the extent of data which is transferred to Facebook, nor how and to what extent Facebook uses this data. Facebook provides information in this regard itself. You can inspect this in the official privacy statement of Facebook at
If you would like to prevent Facebook from being able to assign the visit to our pages to your Facebook user account, you can do so according to the information in this notice by signing out of your Facebook account.
Right to demand information
According to the “Bundesdatenschutzgesetz” [German federal law on data protection] you have a right to information regarding your stored data free of charge as well as, where applicable, a right to rectification, blocking or deletion of these data. If you have any questions on the gathering, processing or use of your personal data, in the case of information, rectification, blocking of deletion of data, as well as for the revocation of consents issues, please contact:
Grammer Solar GmbH
Oskar-von-Miller-Str. 8
92224 Amberg
Tel: +49 (0)9621 30857-0
Fax: +49 (0)9621 30857-10
E-mail: info@grammer-solar.de
Revocation of consents
If you have issued consent(s) in your visit to our online shop www.twinsolar.de (e.g. subscribing for the newsletter) we would like to inform you that you can revoke these/these consent(s) at any time with future effect.


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