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Prof. Dr. Andreas Witzig

Prof. Dr. Andreas Witzig

Prof. Dr. Andreas Witzig

ZHAW School of Engineering
Institute of Computational Physics
Technikumstrasse 71
8400 Winterthur

+41 (0) 58 934 45 73

Personal profile

Management role

Director of Institute, ICP Institute of Computational Physics

Position at the ZHAW

Expertise and research interests

Building simulation (
Simulation software Polysun
Simulation of optoelectronic devices

Educational background

HSG Diploma Technology-Entrepreneur, Executive School, Uni St. Gallen
Academic guest at the University of California, Santa Barbara
PhD at ETH Zurich (ETH-Medal)
Diploma in Electrical Engineering, ETH Zürich
ERASMUS exchange program, Universität Bristol, England

Professional milestones

Vela Solaris AG (Founder, CEO, President of the board)
Synopsys Inc. (product manager optoelektronics)
ISE Integrated Systems Engineering (product manager optoelektronics)
Integrated Systems Laboratory, ETH Zurich (scientific research staff)

Membership of networks



Articles in scientific journal, peer-reviewed
Book parts, peer-reviewed
Conference contributions, peer-reviewed
Other publications
Oral conference contributions and abstracts

Publications before appointment at the ZHAW

1. E. Vrettos, A. Witzig, R. Kurmann, S. Koch, and G. Andersson, Maximizing local PV utilization using small-scale batteries and flexible thermal loads, European PV Solar Energy Conference and Exhibition (PVSEC), Paris, France, September 2013.

2. R. Bornatico, J. Hüssy, A. Witzig, L. Guzzella, Surrogate modeling of the fast optimization of energy systems, Elsevier journal Energy, vol. 57, June 2013

3. R. Bornatico, M. Pfeiffer, A. Witzig, L. Guzzella, Optimal sizing of a solar thermal building installation using particle swarm optimization, Elsevier journal Energy, vol. 41, issue 1, May 2012

4. A. Witzig, Kombination Solar und Wärmepumpen, Innovative Konzepte in der dezentralen Energieproduktion, Energiepraxis-Bulletin der Ostschweizer Energiefachstellen, Zürich, Oktober 2011

5. A. Witzig, Advances in Optical Device Simulation Software, Photonics Spectra, November 2004

6. A. Witzig, Modeling the Optical Processes in Semiconductor Lasers, PhD Thesis, ETH-Nr. 14694, ISBN 3-89649-803-1, Hartung-Gorre Verlag, Konstanz, 2002

7. B. Witzigmann, A. Witzig, W. Fichtner, A Multidimensional Laser Simulator for Edge-Emitters Includ¬ing Quantum Carrier Capture, IEEE Transactions on Electron Devices, vol. 47, issue 10, October 2000