Copyright Information

This website is based on WordPress and the Tesseract theme of Tyler Moore.


The free software R was used for analysis and presentation of quantitative information:

R Core Team (2016). R: A language and environment for statistical
computing. R Foundation for Statistical Computing, Vienna, Austria. URL



All images were processed for the requirements of the website. It is always worth to look at the original pictures, which are of course more beautiful.


Creative Commons

The following pictures of the homepage are licensed under the Creative Commons Attribution - Sharealike 4.0 International License 


Creative Commons Lizenzvertrag

Start Page

Dam Verzasca

by Martin Abegglen, CC BY-SA 2.0,

District Heat Pipe (Herne - Rottstraße - Fernwärme 02 ies)

by Frank Vincentz - own work, CC BY-SA 3.0,

Energy Consulting

Heat exchanger of geothermal power plant Landau

by Claus Ableiter, CC BY-SA 3.0,

Climbing belay device I'D S

by Leineabstiegsschleuse - own work, CC0,

Old cogeneration plant in Wolfsburg

by Richard Bartz - own work, CC BY-SA 3.0,



Fotolia holds the copyright for further pictures:

© Solar oven in France: Four solaire D'Odeillo (monument historique), Author: PHILETDOM

© Surface coal mining: Garzweiler Tagebau, Author: ted007

© Leipzig: View over Leipzig in the evening,  Author: kentauros

© Energy Procurement: Financial accounting graphs and charts analysis, Autor: Wangler

© Energy Trading: Business Team Investment Entrepreneur Trading Concept,  Autor: