Legal Notice

The International Solar Energy Society e. V. is registered at the District Council of Freiburg, registration No. VR 2739. 

The representatives of the non-profit organisation are:
President: Dr. David S. Renné
Vice President: Prof. Volker Wittwer
Treasurer: Mr. Torben Esbensen

VAT Identification No. DE 177 197 424 (international use)
Taxation No. 06470/41456 (for use in Germany only)

Contact persons for the ISES e. V. International Headquarters are:
Executive Secretary: Jennifer McIntosh

Contact Information
International Solar Energy Society
International Headquarters - Villa Tannheim
Wiesentalstr. 50
79115 Freiburg

Tel: + 49 761 45906 45
Fax: + 49 761 45906 99

All material contained in this site, including graphical elements and images, is, unless stated otherwise, copyright of the International Solar Energy Society e. V.  (ISES).  All rights reserved. The images, documents and information provided on this website are intended solely for informational and non-commercial purposes.

Unless stated otherwise, the images, documents and information may not be modified or altered in any way. You may not remove any copyright or other proprietary notices contained in the pictures, documents and information. Should you display any images or content originating from this site, they should be attributed to ISES, unless otherwise stated.

This website contains links to many websites created and maintained by other public and/or private organizations. External links are being provided as a convenience and for informational purposes only; they do not constitute an endorsement or an approval by the International Solar Energy Society of any of the products, services or opinions of the corporation or organization or individual. The International Solar Energy Society bears no responsibility for the accuracy, legality or content of the external site or for that of subsequent links. Contact the external site for answers to questions regarding its content.

The contents of papers, presentation and any other content provided to or linked on this website are the sole responsibility of the authors and express the opinion of the authors, and are not necessarily endorsed by the International Solar Energy Society. ISES does not endorse, make any warranty, express or implied, or accept legal liability or responsibility for copyright permission, the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately on rights of others.

Photo Credits

The photos that appear in the home page banner of this website and on the following sites are credited to the following persons:

Homepage banner photos:

Andesol, Burkina Faso, Ghana, Mail, Ruanda and Spain -  Nathalie Bertrams /

Photovoltaic on the roof of the Brewery Ganter in Freiburg / Brsg.: copyright: Solarfabrik GmbH Freiburg

Terrace houses with solar panels: copyright: Wagner & Co Solartechnik GmbH

Other photos courtesy of Corry de Keizer, Christian Budig and Ahmad Houri. 

Photo under "What we do" - Nathalie Bertrams /

Fotolia stock photos on:

Photo on the webpage:


If a copyright is indicated on a photo, graphic, or other material appearing on this site, permission to copy these materials must be obtained from the original source.

Webinar Disclaimer

The International Solar Energy Society (hereinafter referred to as “ISES”) makes no representations or warranties about the accuracy or suitability of any information in the webinars and related materials (such as handouts, presentation documents and recordings); all such content is provided to ISES's members and webinar registrants on an “as is” basis. ISES HEREBY DISCLAIMS ALL WARRANTIES REGARDING THE CONTENTS OF THESE MATERIALS, INCLUDING WITHOUT LIMITATION ALL WARRANTIES OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. ISES is not liable for any information provided by instructors and presenters of these webinars. ISES hereby disclaims all liability for any claims, losses, or damages in connection with use or application of these materials. ISES does not guarantee, warrant, or endorse the products or services of any firm, organization, or person. The information contained in these webinars and related materials is not intended to constitute legal advice or the rendering of legal, consulting, or other professional services of any kind. Users of these materials should not in any manner rely upon or construe the information or resource materials in these materials as legal, or other professional advice and should not act or fail to act based upon the information in these materials without seeking the services of a competent legal or other professional.

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