Acknowledgements

We greatly acknowledge the continuous assistance of Juan Manuel de Borja, who during a one-year period assisted the editors with the realization of the manuscript of The Power of Design.

Also we wish to thank Delft University of Technology and University of Twente for their support during the period in which the manuscript was written.

We would like to acknowledge many colleagues from industry who recognized the relevance of industrial design engineering for energy technologies and who provided access to their projects.

For their idea-formulating support in the very early stages of our methodological approach to design processes with sustainable energy technologies, we would like to thank Eric von Hippel of MIT Sloan School of Management in Boston, Arie Rip of University of Twente, and Joop Halman of University of Twente.

This work would not have existed without the inspiring contributions of many authors. Here we would like to thank with deep gratitude Chris Ryan, Stefan Kuhlmann, Joop Halman, Valeri Souchkov, Jan Buijs, Wouter Eggink, Peter Joore, Joop Schoonman, Wilfried van Sark, Frank de Bruijn, Paul Kühn, Arjan de Winter, Bram Entrop, Arjen Jansen, André de Boer, Alexandre Paternoster, Pieter de Jong, Daphne Geelen, David Keyson, Bart Durlinger, Bas Flipsen, Nils Reich, Michael Thung, Leonard Schürg, Jonas Martens, Roos van Genuchten, Marcel Crul, Satish Kumar Beella, Sacha Silvester, and Jeroen Verschelling. In the last phase of the preparation of The Power of Design, Anke Sesink and Joska Sesink did a great design job with regards to the infographics and several illustrations.

Also the secretaries of the Department Design, Production and Management of University of Twente are gracefully thanked for their support. Most of all we thank all the students at Technical University of Delft and University of Twente, whose work in our master's classes and graduate projects forms the basis of this book. Their enthusiastic participation resulted in scintillating (classroom) discussions, as well as many interesting product concepts partially exposed in this book and partially represented in design research papers.