The following list contains the publications of the employees of in.RET.

If you are particularly interested in one of the publications, please contact us.

Books & book chapters

  • Wesselak, V. (ed.): RET.Con 2024 conference proceedings. Nordhausen (2024)
  • Wesselak, V. (ed.): RET.Con 2023 conference proceedings. Nordhausen (2023)
  • Leibbrandt, P.: Numerical and experimental investigations on a solar thermal glass collector. Nordhäuser Hochschultexte, Schriftenreihe Ingenieurwissenschaften, vol. 6, Nordhausen (2023)
  • Wesselak, V. (ed.): RET.Con 2022 conference proceedings. Nordhausen (2022)
  • Haenecke, M.: Online measurement of dust cake thickness on filter bags using a laser triangulation method. Dissertation, Wuppertal 2021
  • Schabbach, T.; Leibbrandt, P.: Solarthermie. How sun becomes heat, 2nd edition. Springer, Berlin, Heidelberg 2021
  • Wesselak, V. (ed.): RET.Con 2021 conference proceedings. Nordhausen 2021
  • Wesselak, V. (ed.): So geht's - Wie Thüringen klimaneutral wird. The results of energy system modelling. Nordhausen 2021
  • Link, T.: The diesel scandal. In: Breuer, U.; Genske, D.: Ethics in the engineering sciences. pp. 235-244, Springer, Berlin Heidelberg 2020
  • Schabbach, T.; Wesselak, V.: Energy: The future belongs to renewables. Springer, Berlin Heidelberg 2020
  • Wesselak, V. (ed.): RET.Con 2020 conference proceedings. Nordhausen 2020
  • Voswinckel, S.: Potential-induced degradation mechanisms of copper indium gallium diselenide thin-film photovoltaic modules. Dissertation, Nordhäuser Hochschultexte, publication series engineering sciences, vol. 5, Nordhausen 2019
  • Wesselak, V. (ed.): RET.Con 2019 conference proceedings. Nordhausen 2019
  • Wesselak, V. (ed.): RET.Con 2018 conference proceedings. Nordhausen 2018
  • Everding, D., Große, R., Genske, D., Klare, S., Jödecke, T., Dost, F.: Innovative climate protection sub-concept for the energy transition in the district of Nordhausen (energy paths), final report, Nordhausen 2018
  • Voswinckel, S.: Lebensdauer und Zuverlässigkeit von Photovoltaikmodulen. In Handbuch Regenerative Energietechnik, pp. 254-274, 3rd edition, expanded and revised edition. Springer, Heidelberg Berlin 2017
  • Wesselak, V.; Schabbach, T.; Link, T.; Fischer, J.: Handbuch Regenerative Energietechnik. 3rd edition, expanded and revised edition (943 p.). Springer, Heidelberg 2017
  • Wesselak, V.; Voswinckel, S.: Photovoltaik - Wie Sonne zu Strom wird. 2nd edition, Springer, Heidelberg 2016
  • B. Lustermann: Modelling of tubular optical fibres using the example of an optical-electrical combination conductor, dissertation, Nordhäuser Hochschultexte, vol. 4, 2015
  • Schabbach, T.; Leibbrandt, P.: Solarthermie - Wie Sonne zu Wärme wird. Springer-Vieweg, Heidelberg 2014
  • Wesselak, V.; Schabbach, T.; Link, T.; Fischer, J.: Regenerative Energy Technology. 2nd edition, expanded and completely revised (862 p.). Springer, Heidelberg 2013
  • Schabbach, T.; Wesselak, V.: Energie - Die Zukunft wird erneuerbar. Springer, Heidelberg 2012
  • Wesselak, V.; Voswinckel, S.: Photovoltaik - Wie Sonne zu Strom wird. Springer, Heidelberg 2012
  • Wesselak, V.; Schabbach, T.: Energy. Thuringia State Centre for Political Education, Erfurt 2011
  • Fischer, J.; Genske, D.; Jödecke, T.; Klenner, S.; Nuschke, M.; Ruff, A.; Schwarze M.: Neue Energie für Thüringen. Results of the potential analysis - long version. Erfurt 2011
  • Fischer, J.: Biomass. In: Wesselak, V.; Schabbach, T.: Regenerative Energy Technology. S. 323-374, Springer, Heidelberg 2009
  • Link, T.: Wind turbines. In: Wesselak, V.; Schabbach, T.: Regenerative Energy Technology. S. 375-402, Springer, Heidelberg 2009
  • Link, T.: Hydropower plants. In: Wesselak, V.; Schabbach, T.: Regenerative Energy Technology. S. 403-412, Springer, Heidelberg 2009
  • Wesselak, V.; Schabbach, T.: Regenerative Energy Technology. Springer, Heidelberg 2009

Magazine articles

  • E. Fokuhl, G. Mülhöfer, V. Wesselak, T. Mikolajick, D. Philipp, P. Gebhardt: Influence and mitigation of interference by LID and LETID in damp heat and thermal cycling tests on PV modules. J. Renew. Sustain. Energy 10.1063/5.0126668 (2024)
  • Fokuhl, E., Stecklum, S., Mülhöfer, G., Wesselak, V., Mikolajick, T., Philipp, D., Gebhardt, P.: In-situ resolution of light-induced degradation effects during climate chamber experiments by dark characteristic monitoring. 6th RET.Con, Nordhausen (2024)
  • Fokuhl, E., Stecklum, S., Mülhöfer, G., Wesselak, V., Mikolajick, T., Philipp, D., Gebhardt, P.: In-situ resolution of light-induced degradation effects during climate chamber experiments by dark characteristic monitoring. 6th RET.Con, Nordhausen (2023)
  • Gerstenberg, L., Wesselak, V.: Early detection of PID in CIGS thin-film PV modules and the influence of alternating potential. 6th RET.Con, Nordhausen (2023)
  • Wesselak, V.: Efficiency will make its point - some considerations about hydrogen future. Solar World Congress SWC2023, Delhi (2023)
  • Dhungel, G., Reinhardt, T., Schmidt, C., Wesselak, V., Schabbach, T.: Development and comparative analysis of a bottom-up heat demand modelling tool with existing heat demand estimation methods for Germany. Solar World Congress SWC2023, Delhi (2023)
  • Bala Krishnan, R., Wesselak, V., Reinhardt, T., Schmidt, C.: Influence of decentralisation and sector coupling on the load profiles of the remaining grid demand for private household sector in Germany. Solar World Congress SWC2023, Delhi (2023)[SS1] 
  • Rothe, C., Rathje, R., Link, T.: Mathematical modelling and constructive design of a spherical scrolllexpander of an ORC plant for the electrical utilisation of industrial waste heat. 30th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund (2023)
  • Rathje, R., Link, T.: Phase-changing pumped storage power plant - Presentation of modularised process sequences for charging and discharging. 30th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund (2023)
  • Fokuhl, E.; Mülhöfer, G.; Philipp, D.; Wesselak, V.; Mikolajick, T.; Gebhardt, G.: Mitigating the Influence of LID and LETID on Damp Heat and Thermal Cycling Test Results. 8th World Conference on Photovoltaic Energy Conversion, Milan (2022)
  • Fokuhl, E.; Mülhöfer, G.; Wesselak, V.; Mikolajick, T.; Philipp, D.; Gebhardt, G.: Influence and mitigation of interference by LID and LETID in damp heat and thermal cycling tests on PV modules. Journal of Renewable and Sustainable Energy Vol.14 (6) (2022)
  • Gerstenberg, L.; Bala Krishnan, R.K.; Wesselak, V.: Influence of alternating Potential-Induced Degradation and Recovery on CIGS Thin Film Solar Modules. 8th World Conference on Photovoltaic Energy Conversion, Milan (2022)
  • Gerstenberg, L.; Krishnan Bala Krishnan, R.; Wesselak, V.: Real-time measurement of the parallel resistance of CIGS thin-film PV modules during accelerated ageing tests Proceedings of the 5th RET.Con, Nordhausen (2022)
  • Krishnan Bala Krischnan, R.; Oberdorfer, A.; Wesselak, V.; Reinhardt, T.; Schmidt, C.: Effects of decentralised energy supply on standard load profiles in the electricity sector. 29th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund (2022)
  • Leibbrandt, P.; Giovannetti, F.; Schabbach, T.; Jordan, U.: Improved calculation approach of the heat transfer in inclined insulating gas layers. Solar Energy Vol. 231, P. 252-261 (2022)
  • Leibbrandt, P.: Adapted calculation approach for heat transfer in inclined insulating gas layers for collector applications. 32nd Symposium on Solar Thermal Energy and Innovative Heating Systems, Bad Staffelstein (2022)
  • Leibbrandt, P.: Adapted Calculation Approach of the Heat Transfer in Inclined Insulating Gas Layers of Solar Collectors. EuroSun2022, Kassel (2022)
  • Reinhardt, T.; Lubojanski, A.; Schmidt, C.; Wesselak, V.: The development of a graphical user interface for the modelling tool oemof. 29th Symposium on the Use of Renewable Energy Sources and Hydrogen Technology, Stralsund (2022)
  • Reinhardt, T.; Hofmann, L.; Oberdorfer, A.; Schmidt, C.; Wesselak, V.: How Germany can achieve Climate Neutrality - 5 Studies in Comparison. Conference of Environmental and Climate Technologies, Riga (2022)
  • Schmidt, C.; Schabbach, T.; Doppelbauer, M.: Numerical investigations on the effects of slot openings on friction losses in the air gap of electrical machines. XXV. International Conference on Electrical Machines (ICEM), Valencia (2022)
  • Wesselak, V., Schmidt, C., Reinhardt, T., Oberdorfer, A.: Decarbonisation paths for the district heating supply of Stadtwerke Erfurt. 29th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund (2022)
  • Borowski, C., Glimm, A., Pieplow, M.: Improving the recycling of small electrical appliances by primary processors and increasing the metal yield by using the magnetic separator. Berg- und Hüttenmännische Monatshefte 2021, Springer-Link: https://doi.org/10.1007/s00501-021-01089-z
  • Borowski C., Pieplow M., Glimm A., Miethlau M., Calderón M. J.: Rohstoffreserven - Steigerung der Wertstoffrückgewinnung aus EAG bei Erstbehandlern. Recovery 01/2021. Bauverlag BV. Gütersloh 2021
  • Gerstenberg, L.; Panda, P.K.; Voswinckel, S.; Wesselak, V.: Regeneration of PID-damaged CdTe thin-film PV modules after accelerated ageing tests. Proceedings of the 5th RET.Con, Nordhausen 2021
  • Gerstenberg, L.; Panda, P.K.; Voswinckel, S.; Wesselak, V.: Early Detection of Potential-Induced Degradation in CIGS Thin Film Solar Modules. 38th EU PVSEC, Lisbon 2021
  • Knahl, E.; Link, T.; Lehmkuhl, H.J.; Lontke, S.; Rathje, R.: Inlet behaviour of different fluids in pressure vessels with special consideration of phase change in ANSYS Fluent. Proceedings of the 4th RET.Con, Nordhausen 2021
  • Patel, J.N.B.; Fokuhl, E.; Prakash, K.S.; Beinert, A.; Wesselak, V.; Gebhardt, P.; Philipp, D.: Design and Development of Solar Cell Integrated Moisture and Temperature Sensors for Photovoltaic Modules. 38th EU PVSEC, Lisbon 2021
  • Rathje, R.; Link, T.; Knahl, E.; Lontke, S.; Lehmkuhl, H.J: Thermodynamic process simulation for phase-change pumped storage power plants. Proceedings of the 4th RET.Con, Nordhausen 2021
  • Lontke, S.; Link, T.; Knahl, E.; Rathje, R.; Lehmkuhl, H.J.: Economic analysis of the phase-change pumped storage power plant on the German electricity market. Proceedings of the 4th RET.Con, Nordhausen 2021
  • Schmidt, C., Oberdorfer, A., Reinhardt, T., Wesselak, V.: Modelling the feed-in of solar thermal systems into a district heating network implemented in oemof. 28th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2021
  • Wesselak, V., Oberdorfer, A., Reinhardt, T., Schmidt, C., Hofmann, L: Transformation paths for a climate-neutral Thuringia. 28th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2021
  • Wesselak, V.: Transition pathways for a carbon-neutral Thuringia. 50th SWC - ISES Solar World Congress 2021
  • Borowski, C.: Development of an innovative multi-metal separator for the processing of e-scrap < 8 mm. Recy & DepoTech Leoben 2020Borowski, Christian: Challenges in the sampling of metals using the example of the multimetal separator. Published in: Sampling of raw and residual materials and in metallurgy. 50th Metallurgical Seminar of the Technical Committee for Metallurgical Education and Training of the GDMB. Clausthal-Zellerfeld 2020
  • Gerstenberg, L., Oberdorfer, A., Wesselak, V., Voswinckel, S. Degradation investigations on cadmium telluride PV modules as part of the PV-FeldLab project. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Gerstenberg, L.: Leakage Current Analysis in Respect to Potential Induced Degradation for Cadmium Telluride Thin Film Solar Modules. 37th EU PVSEC 2020
  • Haller, H.: Numerical investigation of the combustion of hydrogen and oxygen. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Klare, S., Voswinckel, S., Wesselak, V.: Key figures and methods for determining energy potentials in Germany using the example of Thuringia. 27th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2020
  • Knahl, E., Link, T.: Investigation of the heat transfer between a liquid jet and a hydrocarbon vapour environment. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Schabbach, T., Leibbrandt, P.: PrimOS Ltd. - Virtual Development Office for Solar Thermal Systems. 30th Symposium on Solar Thermal Energy and Innovative Heating Systems. Bad Staffelstein 2020
  • Leibbrandt, P., Schabbach, T.: Optimised Design of the Insulating Gas Layer in Solar Thermal Collectors. 13th ISES EuroSun, Athens 2020
  • Lontke, S., Link, T.: Simulation model for the profitability analysis of energy storage systems. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Lustermann, B., Quandt, M., Ulrich, S., Spano, F., Rossi, R., Boesel, L.: Experimental determination and ray-tracing simulation of bending losses in melt-spun polymer optical fibres. Scientific Reports 2020
  • Voswinckel, S.; Mikolajick, T.; Wesselak, V.: Influence of the active leakage current pathway on the potential induced degradation of CIGS thin film solar modules. Solar Energy, Volume 197, February 2020, Pages 455-461
  • Boulhidja, S.; Mellit, A.; Voswinckel, S.; Lughi, V.; Ciocia, A.; Spertino, F.; Massi Pavan, A. Experimental Evidence of PID Effect on CIGS Photovoltaic Modules. Energies 2020, 13, 537.
  • Wesselak, V.; Schabbach, T.: Wärme aus Erneuerbaren Energien - Argumente für ein Erneuerbare-Energien-Wärme-Gesetz. WIR in Thuringia 06, Erfurt 2012
  • Voswinckel, S.; Schabbach, T.; Schönhardt, M.: Demand-orientated ventilation of classrooms. HLH Lüftung/Klima - Heizung/Sanitär - Gebäudetechnik, No. 2/2010, pp. 51-55
  • Link, T.: Master of Systems Engineering - a consecutive Master's programme not only for energy engineers. Engineering Mirror, No. 4, 2010
  • Schabbach, T.: Thermal energy storage. Special publication "Greentech" of the Thüringer Allgemeine, Erfurt 2010

Conference and meeting contributions

  • Rothe, C., Rathje, R., Link, T.: Mathematical modelling and constructive design of a spherical scrolllexpander of an ORC plant for the electrical utilisation of industrial waste heat. 30th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund (2023)
  • Rathje, R., Link, T.: Phase-changing pumped storage power plant - Presentation of modularised process sequences for charging and discharging. 30th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund (2023)
  • Borowski, C.: Development of an innovative multi-metal separator for the processing of e-scrap < 8 mm. Recy & DepoTech Leoben 2020
  • Borowski, Christian: Challenges in the sampling of metals using the example of the multimetal separator. Published in: Sampling of raw and residual materials and in metallurgy. 50th Metallurgical Seminar of the Technical Committee for Metallurgical Education and Training of the GDMB. Clausthal-Zellerfeld 2020
  • Gerstenberg, L., Oberdorfer, A., Wesselak, V., Voswinckel, S. Degradation investigations on cadmium telluride PV modules as part of the PV-FeldLab project. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Gerstenberg, L.: CdTe Module Degradation during Dry and Damp Accalerated Aging Tests in Respect to the Leakage Current Pathway. Proceedings of the 37th European Photovoltaic Solar Energy Conference and Exhibition 2020, Online-Conference, 2020
  • Haller, H.: Numerical investigation of the combustion of hydrogen and oxygen. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Klare, S.; Voswinckel, S.; Wesselak, V.: Key figures and methods for determining energy potentials in Germany using the example of Thuringia. 27th REGWA Symposium, Stralsund, 2020
  • Knahl, E., Link, T.: Investigation of the heat transfer between a liquid jet and a hydrocarbon vapour environment. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Schabbach, T., Leibbrandt, P.: PrimOS Ltd. - Virtual Development Office for Solar Thermal Systems. 30th Symposium on Solar Thermal Energy and Innovative Heating Systems. Bad Staffelstein 2020
  • Lontke, S., Link, T.: Simulation model for the profitability analysis of energy storage systems. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Oberdorfer, A.; Reinhardt, T.; Schmidt, C.; Voswinckel, S.; Wesselak, V.: Energy system modelling in oemof - possibilities and limits. 27th REGWA Symposium, Stralsund, 2020
  • Rathje, R., Link, T.: Thermodynamic simulation of the phase-change pumped storage power plant. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Schmidt, C., Holoyad, T.: Modern optimisation approaches for electric machines in the mobility sector. Proceedings of the 4th RET.Con, Nordhausen 2020
  • Schmidt, C.: Calculation of Thermal Resistances in Solid Bodies by Conduction Shape Factors for Lumped Parameter Thermal Networks. ICEM Gothenburg 2020
  • Schmidt, C.; Oberdorfer, A.; Reinhardt, T.; Voswinckel, S.; Wesselak, V.: Influence of electricity price fluctuation on the energy system of Thuringia in 2050. 27th REGWA Symposium, Stralsund, 2020
  • Gerstenberg, L.; Wesselak, V; Voswinckel, V; Münter, S.: Parameter study on the mounting situation of bifacial PV modules. Conference proceedings RET.Con 2019, pp. 107-113, Nordhausen 2019
  • Leibbrandt, P., Schabbach, T., Zhou, J.: NuGlaSys - Preliminary investigations on the use of the all-glass collector in drainback systems. Symposium on solar thermal energy and innovative heating systems, Bad Staffelstein 2019
  • Münter, S.; Wesselak, V; Voswinckel, V; Gerstenberg, L: Potential-induced degradation mechanisms on bifacial photovoltaic modules - comparison of accelerated ageing and long-term investigations. Conference proceedings RET.Con 2019, pp. 95-106, Nordhausen 2019
  • Schabbach, T., Ritter, D.: The new VDI 3988 Solar thermal process heat - content, significance and opportunities. Symposium on solar thermal energy and innovative heating systems, Bad Staffelstein 2019
  • Schneider, S.; Hüttl, B.; Gerstenberg, L.; Wesselak, V.; Voswinckel, S.; Schulze, S.: PV-FeldLab - Field laboratory for on-site performance determination and ageing identification of photovoltaic generators. Conference proceedings RET.Con, Nordhausen 2019
  • Wesselak, V.: Demands on future energy policy. Conference proceedings RET.Con, Nordhausen 2019
  • Gerstenberg, L.; Wesselak, V.; Voswinckel, S.; Münter, S.: Yield simulation for bifacial photovoltaic modules. 25th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2018
  • Gerstenberg, L.; Wesselak, V; Voswinckel, V; Münter, S.: Simulation and investigations on the additional yield of bifacial Si photovoltaic modules over the course of the day and year. Conference proceedings RET.Con 2018, pp. 69-79, Nordhausen 2018
  • Münter, S.; Wesselak, V; Voswinckel, V; Gerstenberg, L: Investigation of degradation mechanisms on bifacial photovoltaic modules. Conference proceedings RET.Con 2018, pp. 80-86, Nordhausen 2018
  • Rathje, R.M.; Link, T.; Senge, C.: Development of a plastic scroll expander for low-temperature ORC systems. 25th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2018
  • Wesselak, V.; Klumpp, F.: Possibilities and limits of energy scenarios at state level - the example of Thuringia. 25th Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2018
  • Schabbach, T.; Leibbrandt, P.; Dölz, M.; Brauer, M.: Sonnenkollektoren in den DDR. Historical classification - collector design and collector performance. Symposium Solar Thermal Energy 2018, Bad Staffelstein 2018
  • Schabbach, T.; Leibbrandt, P.; Dölz, M.; Rhein, M.; Kemter, R.: Performance, suitability for use and costs of the glass-only collector - results. Symposium Solar Thermal Energy 2018, Bad Staffelstein 2018
  • Leibbrandt, P.; Schabbach, T.; Dölz, M.; Rhein, M.: Investigation results on flow and heat transfer in the all-glass collector. Symposium Solar Thermal Energy 2018, Bad Staffelstein 2018
  • Leibbrandt, P.; Schabbach, T.; Dölz, M.; Rhein, M.: EXPERIMENTAL AND CFD OPTIMIZATION ON FLOW AND HEAT TRANSFER TO A SOLAR FLAT-PLATE GLASS COLLECTOR. Solar World Congress 2017, Abu Dhabi, 2017
  • Voswinckel, S.; Wesselak, V.; Münter, S.; Gerstenberg, L.: Correlation of Leakage Current Pathways and Potential Induced Degradation of CIGS Thin Film Solar Modules. Solar World Congress 2017, Abu Dhabi, 2017
  • Boulhidja, S.; Mellit, A.; Voswinckel, S.: Potential-Induced Degradation test on CIGS photovoltaic modules. 5th International Conference on Electrical Engineering - ICEE 2017, Boumerdes/ Algeria, 2017
  • Münter, S.; Wesselak, V.; Voswinckel, S.; Gerstenberg, L.; Shading Effects of the Mounting Structure of Bifacial PV Modules and Impact to the Bypass Diode Lifetime. Proceedings of the 33rd European Photovoltaic Solar Energy Conference and Exhibition, Amsterdam 2017
  • Haller, J.; Link, T.:An Efficient Zero-Emission Process for Stationary Conversion of Hydrogen and Oxygen in Internal Combustion Engines. 7th World Hydrogen Technology Convention, Prague 2017
  • Rhein, M.; Schabbach, S.; Dölz, M.; Leibbrandt, P.: Resistance of glass constructions with fluid guiding structure against mechanical loads. 27th OTTI Symposium Thermal Solar Energy, Bad Staffelstein 2017
  • Leibbrandt, P.; Schabbach, S.; Dölz, M.; Rhein, M.: Experimental and numerical investigations on the full volumetric flow of insulating glass collectors. 27th OTTI Symposium Thermal Solar Energy, Bad Staffelstein 2017
  • Leibbrandt, P.; Schabbach, S.; Dölz, M.; Rhein, M.: Experimental and CFD investigations on full volumetric flow to a solar flat-plate glass collector. 11th ISES EuroSun, Palma 2016
  • Quandt, Brit M.; Rossi, René M.; Bona, Gian-Luca; Lustermann, Birgit; Boesel, Luciano F.: Modelling the bend out-coupling of melt-spun polymer optical fibres. POF Plastic Optical Fibre; Jul/Aug2016, Vol. 26 Issue 4, p84
  • Haller, J.; Link, T. : Development of an efficient emission-free H2-O2 combustion engine for stationary application . XXIII Symposium Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2016
  • Voswinckel, S.; Wesselak, V; Münter, S.; Schmidt, C. : Characterisation of bifacial PV modules. XXIII Energy Symposium, Stralsund 2016
  • Dölz, M.; Schabbach T.; Leibbrandt P.; Rhein, M.: Low-cost collector test rig for quasi-dynamic measurements in the high-temperature range. 26th OTTI Symposium Thermal Solar Energy, Bad Staffelstein 2016
  • Leibbrandt, P.; Schabbach, S.; Dölz, M.; Rhein, M.: CFD investigations on convective heat losses in gaps between panes with large aspect ratio. 26th OTTI Symposium Thermal Solar Energy, Bad Staffelstein 2016
  • Haller, J.; Link, T.: A Novel High Efficient Zero-Emission Process for Stationary Internal Combustion Engines Utilising Hydrogen and Oxygen - A Thermodynamic Concept. Hydrogen Days - 7th International Conference on Hydrogen Technologies, Prague 2016
  • B. Lustermann, M. Viehmann, E. Manske: Modeling of Tubular Optical Fibers using the Example of an Optical-electrical Combination Conductor, in: C.-A. Bunge, R. Kruglov (Ed.): POF Simulation beyond Data Transmission, Summary of the 3rd International POF Modelling Workshop 2015, BoD - Books on Demand, 2015
  • Voswinckel, S.; Wesselak, V.; Fokuhl, E.; Schmidt, C.; Watzlawik, K.: Dos and Don'ts of Leakage Current Measurement. Proceedings of the 30th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg 2015
  • Fokuhl, E.; Wesselak, V.; Voswinckel, S.; Manz, P.; Trautmann, B.; Schmidt, C.: Investigation of the Micro-Climate of microcrystalline Silicon-Modules and CIGS-Modules and its Impact on Potential-Induced Degradation. Proceedings of the 30th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg 2015
  • Haenecke, M.; Link, T.: FEM simulation of a CFRP bicycle frame with ANSYS Composite PrepPost. ANSYS Conference & 32nd CADFEM Users' Meeting, Bremen 2015
  • Haller, J.; Link, T.: Simulation of a stationary H2-O2 combustion engine with combined gas and vapour process in ANSYS CFX. ANSYS Conference & 32nd CADFEM Users' Meeting, Bremen 2015
  • Fischer, J.; Rübesamen, D.: Energetic utilisation of biogenic residues - Investigation of the processing and combustion properties using the example of horse manure pellets. 9th Rostock Bioenergy Forum, Rostock 2015
  • Carow, J.R.; Link, T.; Rathje, R.M.: Numerical and Experimental Performance Study on a Diaphragm Expander for Application in Small Scale Organic Rankine Cycles. EUBCE 2015 - 23rd European Biomass Conference & Exhibition, Vienna 2015
  • Fokuhl, E.; Wesselak, V.; Manz, P.; Voswinckel, S.; Trautmann, B.; Schmidt, C.: Characteristic curve simulation and parameter determination for system-degraded CIGS thin-film photovoltaic modules. XXI Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2014
  • Voswinckel, S.; Wesselak, V.; Manz, P.; Fokuhl, E.; Trautmann, B.; Schmidt, C.: System-related degradation mechanisms of thin-film photovoltaic modules. XXI Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2014
  • Wesselak, V.; Fischer, J.; Link, T.; Schabbach, T.; Scholz, S.: 5 theses for a sustainable energy policy. XXI Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2014
  • Haller, J.; Link, T.: Combined gas and vapour process in the emission-free H2-O2 combustion engine - initial test results. XXI Symposium on the Utilisation of Renewable Energy Sources and Hydrogen Technology, Stralsund 2014
  • Carow, J.R.: Investigation of the flow through a membrane motor in ANSYS CFX with fluid-structure interaction. 9th Thuringian ANSYS University Day, Ilmenau 2014
  • Manz, P.; Wesselak, V.; Voswinckel, S.; Fokuhl, E.; Trautmann, B.; Schmidt, C.: LEAKAGE CURRENT PATHWAYS AND MAGNITUDES IN CORRELATION TO PID OF CIGS THIN FILM MODULES. Proceedings of the 29th European Photovoltaic Solar Energy Conference and Exhibition, Amsterdam 2014
  • Trautmann, B.; Wesselak, V.; Manz, P.; Voswinckel, S.; Fokuhl, E.; Schmidt, C.: Leakage Currents Behaviour of µc-Si PV-Modules Regarding Temperature and Relative Humidity. Proceedings of the 29th European Photovoltaic Solar Energy Conference and Exhibition, Amsterdam 2014
  • Leibbrandt, P.; Schabbach, T.: Solarthermie in der Wohnungswirtschaft, Technik - Auslegungsgrundsätze - Wirtschaftlichkeit. vtw.-Workshop Solarthermie in der Wohnungswirtschaft, Erfurt 2014
  • Leibbrandt, P.; Schabbach, S.; Weber, K.: Flat-plate collectors made of glass - initial test results. 24th OTTI Symposium on Thermal Solar Energy, Bad Staffelstein 2014
  • Carow, J.R.; Link, T.: Gas Flow through a Diaphragm Expander: Fluid-Structure Interaction in ANSYS CFX. ANSYS Conference & 32nd CADFEM Users' Meeting 2014, Nuremberg 2014
  • Schmidt, S.; Manz, P.; Voswinckel, S.; Wesselak, V.: Continuous power measurement at the free-field test stand for system-related degradation mechanisms. 29th OTTI Symposium Photovoltaic Solar Energy, Bad Staffelstein 2014
  • Leibbrandt, P.: Fluid distribution and investigation of heat transfer on a new type of solar flat-plate collector. STAR Global Conference, Vienna 2014
  • B. Lustermann, M. Viehmann, C. Kloß: A simulation model for an optical-electrical combination conductor system, Poster, 56.th IWK TU- Ilmenau, 12-16 September 2011
  • Fischer, J.; Ruff, A.: First results of the Thuringia Renewable Energy Stock and Potential Analysis. 1st Congress Thüringen Erneuer!bar, Weimar 2011
  • Kloß, C.; Viehmann, M.; Lustermann, B.: The optical-electrical combination conductor for arc fault protection. Seminar on arc fault protection in AC and DC networks, Munich 2011
  • Lustermann, B.; Viehmann, M.; Kloß, C.: A simulation model for an optical-electrical combinationconductor system "CONDUS". 56th IWK International Scientific Colloquium, TU Ilmenau, 2011
  • Steinert, P.; Nuschke, M.: Case study on the energy-efficient redesign of listed building complexes. Conference on Renewable Energies, Krakow 2011
  • Wesselak, V.: Photovoltaics. 26th Summer School Renewable Energy, Jülich 2011
  • Wesselak, V.: Photovoltaics. 25th Summer School Renewable Energy, Jülich 2010
  • Wesselak, V.; Steinert, P.; Nuschke, M.: Energieeffizienzmaßnahmen und Einsatz Regenerativer Energien bei Sonderbauten im Denkmalbereich am Beispiel der Leuchtenburg/Thüringen. Nordhausen 2010
  • Schabbach, T.; Wesselak, V.: Energieeffizienz im Strom-, Wärme- und Wasserbereich eines öffentlichen Hallenbades. 2nd Energy Efficiency Workshop. Energy efficiency in SMEs, contributions and experiences on the use of material and energy balances, Weimar 2009
  • Wesselak, V.: Performance Ratio of the floating photovoltaic system Solarpower Ponton I. 5th Nordhäuser Baustofftag, Nordhausen 2009
  • Wesselak, V.: Sustainability vs. development - An overview of 20 years of sustainability discourse. 2nd North Thuringian Education Forum, Nordhausen 2009
  • Fischer, J.: Into the future with Bioenergy - the example of Biogas, German Bioenergy Technologies for Greece. Energy 2008, Athens 2008

Annual reports

Lectures

  • Wesselak, V. Who actually is the Antifa? Lecture series Populism, extremism and the aluminium hat 2, Nordhausen (2023)
  • Wesselak, V.: Schöner Scheitern - ein Jahrzehnt industrienahe PV-Forschung am in.RET. 6th RET.Con, Nordhausen (2023)
  • Wesselak, V.: Energy system modelling for transformation pathways. ZO.RRO II Conference, Erfurt (2023)
  • Wesselak, V.: Heat transition: What impact will the changes have on a municipal utility's electricity and gas sales? TEAG StadtwerkeFachForum, Meinigen (2023)
  • Wesselak, V.: Multiperiodic optimisation of energy systems. 2nd Oberhof Energy Days, Oberhof (2023)
  • Wesselak, V.: Scenarios for the development of Thuringia's energy demand up to 2045, Network Energy Efficiency East Thuringia (NEEO III), Bürgel (2023)
  • Leibbrandt, Pascal: Energy crisis and energy transition - can we manage it? Study of renewable energies in Nordhausen. HSN Insights, Nordhausen (2022)
  • Rathje, R.: Phase-changing pumped-storage power plant - System analysis considering direct contact heat transfer. 5th RET.Con, Nordhausen (2022)
  • Wesselak, V.: The importance of sector coupling for a successful energy transition in Thuringia. Regional network meeting Thuringia of the citizens' dialogue on the electricity grid. online (2022)
  • Wesselak, V.: Thuringia climate-neutral - The results of energy system modelling. Economic Advisory Board IHK Northern Thuringia. Nordhausen (2022)
  • Wesselak, V.: Contribution of hydrogen to the conversion of the energy system in the district and the need to expand renewable energies. Hydrogen Conference - Potentials and limits for the production and use of hydrogen in the Ilm district. Ilmenau (2022)
  • Wesselak, V.: How Thuringia is becoming climate neutral - model calculations and results. Lecture at the Climate Pavilion. Erfurt (2022)
  • Wesselak, V.: Co-operative doctorates - experiences from the engine room. Symposium Quo vadis doctorates at HAWs in Thuringia. Jena (2022)
  • Wesselak, V.: Climate-neutral and cost-effective - How the transformation of Thuringia's energy system can succeed. Day of the engineering sciences. Weimar (2022)
  • Wesselak, V.: Getting out of nuclear, coal and gas - can we do it? Results of energy system modelling for Thuringia. Citizens' information day in the climate pavilion. Erfurt (2022)
  • Wesselak, V.: CO2-free production - What contribution can renewable energies make in Eichsfeld? Workshop "CO2-free production in Eichsfeld". Leinefelde (2022)
  • Wesselak, V.: People and population. Lecture series Populism, extremism and the aluminium hat 2, Nordhausen (2022)
  • Borowski, C.: Waste sources and waste sinks using the example of the research group for the mobilisation of biomass utilisation from secondary raw material sources in Thuringia. Innovation Forum Recycling Region Harz. Clausthal, 29 April 2021.
  • Panda, P.K.: Accelerated ageing of CdTe and cSi PV modules - a technology comparison. Presentation at the 4th RET.Con, Nordhausen 2021
  • Leibbrandt, P.: Renewable Energy Systems (M.Eng.) degree programme. Annual meeting DGS FA University 2021
  • Leibbrandt, P.: Solar thermal energy. How the sun becomes heat. Lecture series "Science and Society in the Climate Pavilion". Nordhausen 2021
  • Link, T.: Alternatives to large-scale storage of electrical energy in battery storage systems Lecture series "Science and Society in the Climate Pavilion". Nordhausen 2021
  • Schabbach, T.: Solar collectors in the GDR. Lecture series "Science and Society in the Climate Pavilion". Nordhausen 2021
  • Wesselak, V.: Thuringia 2040 - How much renewable energy do we need? Guest lecture: Electricity and food from the field next door - Agriphotovoltaics as a building block of the climate transition, Erfurt (online) 2021
  • Wesselak, V.: The future belongs to renewable energies - How much of it does Thuringia need? Guest lecture: Model Future in Dialogue, Großschwabenhausen (online) 2021
  • Wesselak, V.: Climate change and its deniers. Lecture series "Science and Society in the Climate Pavilion". Nordhausen 2021
  • Wesselak, V.: How much wind power does Thuringia need? Lecture series "Science and Society in the Climate Pavilion". Nordhausen 2021
  • Wesselak, V.: The energy system in Thuringia - 100% Renewable in 2040. 5th Thuringian Citizens' Energy Day, Nordhausen 2021
  • Wiese, F.: CO2-reduced heating. Lecture series "Science and Society in the Climate Pavilion". Nordhausen 2021
  • Wesselak, V.: Climate change and its deniers. Duderstadt (online) 2020
  • Wesselak, V.: Thuringia 2040 - How much renewable energy do we need? Guest lecture at a parliamentary evening in the Thuringian state parliament. Erfurt 2020
  • Wesselak, V.: Perspectives for Thuringia on the way to 100% renewable energies. Guest lecture at the annual conference of the BWE Thuringia. Erfurt 2020
  • Wesselak, V.: Thuringia 2040 - How much renewable energy do we need? Citizens' dialogue electricity grid: 1st regional network meeting Thuringia. Erfurt (online) 2020
  • Wesselak, V.: Climate change and its deniers. Eisenach 2020
  • Wesselak, V.: 8 May 1945 - Anniversary of the liberation from fascism. Nordhausen 2020
  • Borowski, C.: Development of an innovative multi-metal separator for the processing of electronic scrap from the post-consumer sector InnoCON 2019, Erfurt 2019
  • Borowski, C.: Possibilities of metal separation and energy saving with the aid of permanent magnets. Annual meeting of the GDMB Technical Committee on Processing, Environmental and Recycling Technology. Mannheim 2019
  • Gerstenberg, L., Oberdorfer, A.: Current research projects at the Institute of Renewable Energy Technology. Long Night of the Sciences, Nordhausen 2019
  • Große, R.: Promotion of heating networks - activities of the federal government, ThEEN Taskforce Heat, Jena 2019
  • Große, R.: Will largely renewable power generation succeed or do we have to prepare for regular blackouts? - A (non-alternative) answer, Long Night of Science, Nordhausen 2019
  • Haenecke, M.: Online Measuring of Dust Cake Thickness on Filter Bags. FILTREX 2019. Berlin 2019
  • Leibbrandt, P.: Theoretical and experimental investigations on the development of a solar thermal glass collector - heat transfer in the gas layer. Working group seminar on solar thermal energy, Kassel 2019
  • Schmidt, C.: Complex systems and turbulence - Why we can predict the course of the stars so well, but not the course of water. Long Night of the Sciences, Nordhausen 2019
  • Voswinckel, S.: Solar panels - is it even worth it? Long Night of the Sciences, Nordhausen 2019
  • Voswinckel, S.: Photovoltaics. Workshop on expansion paths for renewable energies in the landscape, Nentzelsrode 2019
  • Wesselak, V.: Thuringia 2040 - Options and opportunities for action. Thuringia Erneuer!bar, Weimar 2019
  • Wesselak, V.: Energy system Thuringia 2040 - Workshop report. ThEEN Expert Forum Power-to-X, Erfurt 2019
  • Wesselak, V.: Energy System Thuringia 2040, Energy Advisory Board of the TMUEN, Erfurt 2019
  • Wesselak, V.: Storage utilisation in the Thuringian energy system in 2040. EAST conference, Erfurt 2019
  • Wesselak, V.: Energy system Thuringia 2040. ThEGA Forum, Weimar 2019
  • Wesselak, V.: Wind power - fiction and truth. ThEGA Forum, Weimar 2019
  • Wesselak, V.: Climate change and its deniers. VHS Göttingen, Duderstadt 2019
  • Wesselak, V.: Climate change and its deniers. Long Night of the Sciences, Nordhausen 2019
  • Wesselak, V.: Perspectives for Thuringia on the way to 100% renewable energies. 8th Regional Energy Conference Southwest Thuringia, Suhl 2019
  • Wesselak, V.: Thuringia 2050 - How much energy do we need and where should it come from? Conference "Energy transition in Thuringia", Arnstadt 2019
  • Große, R.: Wärmepumpen für bestehende Fernwärmenetze - Möglichkeiten, Grenzen, Stand der Technik und Einsatzbeispiele, lecture at BDEW-Fachtagung: Opportunities and potentials of (district) heat supply, Ettersburg Castle near Weimar 2018
  • Große, R.: Are we still using subsidy instruments or are we already committing subsidy fraud? 19th Annual Conference "Process Engineering and Environmental Protection", Vesser 2018
  • Große, R.: Sektorkopplung Strom - Wärme (Power to Heat) - Erwartungen, Technik und Einsatzbeispiele, lecture in the series "Aktuelle Herausforderungen der Elektrischen Energietechnik" der VDE-Hochschulgruppe der TU Ilmenau, Ilmenau 2018
  • Leibbrandt, P.: From insulating glass window to solar collector. GradLAB, Kassel 2018
  • Schabbach, T.: Solar collectors in the GDR. ThEEN expert forum: Regenerative heat supply, Erfurt 2018
  • Schabbach, T.; Dittes, F.: Nuclear Energy - A Debate. Lecture series "Ethics in the engineering sciences", Nordhausen 2018
  • Wesselak, V.: The need for greater commitment to climate protection. Keynote speech at the ERDF annual conference, Erfurt 2018
  • Wesselak, V.: Thuringia renewable on balance - a possible scenario for 2040. Thüringen Erneuer!bar, Weimar 2018
  • Wesselak, V.: Plagiarism in academia - it's always just the others. Lecture series "Ethics in the engineering sciences", Nordhausen 2018
  • Wesselak, V.: Energiesystem Thüringen 2040. Modelling an energy supply from 100% renewable energy with special consideration of sector coupling. Hearing in the Thuringian state parliament, Erfurt 2018
  • Große, R.: Lowered grid temperatures, a joint task for utilities and customers, presentation at the 6th ThEGA Forum, Weimar 2017
  • Haller, J.; Schmidt, C.: The future world food situation. Long Night of the Future, Nordhausen 2017
  • Leibbrandt, P.: Glass covers in solar thermal energy - hands-on materials testing. Long Night of the Future, Nordhausen 2017
  • Schabbach, T.: Heating support and domestic hot water heating - CO2-free with solar thermal energy. 8th Network Meeting "Energy & Municipality", TheGA - Thuringian Energy and GreenTech Agency, Erfurt 2017
  • Voswinckel, S., Gerstenberg, L., Münter, S.: Damage patterns of photovoltaic modules. Long Night of the Future, Nordhausen 2017
  • Wesselak, V.; Voswinckel, S.: The future of photovoltaics. Long Night of the Future, Nordhausen 2017
  • Wesselak, V.: Encyclopaedia - the dream of knowing the world in a book. Long Night of the Future, Nordhausen 2017
  • Wesselak, V.: Bad thesis made easy. 3rd Science Slam Nordhausen 2017
  • Wesselak, V.: Thomas Müntzer, or: the social sustainability problem of Martin Luther. Lecture series on sustainability, Nordhausen 2017
  • Wesselak, V.: Climate law: Thuringia must come to a decision now. Guest article in the Thüringer Allgemeine from 29/03/2017
  • Leibbrandt, P.: On the way to the all-glass collector - challenges and solutions. 2nd Day of Research, Nordhausen 2015
  • Voswinckel, S.: Solar panels - Is it even worth it? Long Night of the Sciences 2015
  • Leibbrandt, P.: The virtual laboratory - product development with flow simulations. Long Night of the Sciences 2015
  • Leibbrandt, P.: Solar thermal energy - economic applications of a proven technology. Workshop on solar thermal energy for citizen energy cooperatives in Thuringia, Erfurt 2015
  • Leibbrandt, P.: Theoretical and experimental investigations into the development of a solar thermal glass collector. Working group seminar on solar thermal energy, Kassel 2015
  • Carow, J.R.: Investigation of the flow through a membrane motor in ANSYS CFX with fluid-structure interaction. ANSYS Conference & 32nd CADFEM Users' Meeting 2014, Nuremberg 2014
  • Voswinckel, S.: PID investigations on CIGS photovoltaic modules. 3rd workshop of the research group "System-related degradation mechanisms of thin-film photovoltaic modules", Erfurt 2014
  • Trautmann, B.: Degradation of amorphous and microcrystalline photovoltaic modules. 3rd workshop of the research group "System-related degradation mechanisms of thin-film photovoltaic modules", Erfurt 2014
  • Manz, P.: Electroluminescence in thin-film photovoltaic modules. 3rd workshop of the research group "System-related degradation mechanisms of thin-film photovoltaic modules", Erfurt 2014
  • Fokuhl, E.: Determination of the characteristic curve parameters based on measured current-voltage characteristics. 3rd workshop of the research group "System-related degradation mechanisms of thin-film photovoltaic modules", Erfurt 2014
  • Schmidt, C.: Quasi-continuous power measurement to determine the degradation behaviour of thin-film photovoltaic modules. 3rd workshop of the research group "System-related degradation mechanisms of thin-film photovoltaic modules", Erfurt 2014
  • Leibbrandt, P.: The electrical-thermal-hydraulic analogy. 5th Long Night of the Sciences, Nordhausen 2013
  • Voswinckel, S.: System-related degradation mechanisms of photovoltaic modules. 2nd workshop of the research group "System-related degradation mechanisms of thin-film photovoltaic modules", Nordhausen 2013
  • Voswinckel, S.: TCO corrosion and PID effect. ISFH - in.RET Workshop, Hamelin 2013
  • Manz, P.: System-related degradation mechanisms of thin-film photovoltaic modules. Annual conference of the Thuringian industry-related research groups, Ilmenau 2013
  • Voswinckel, S.: System-related degradation mechanisms of thin-film photovoltaic modules. Staff Symposium CiS Erfurt, Erfurt 2013
  • Voswinckel, S.: System-related degradation mechanisms of photovoltaic modules. Workshop of the OptiSolar and PIDSiNx:H research groups, Ilmenau 2013
  • Link, T.: Development of a rotor blade for small to medium power wind turbines. LeiFaK closing event, Schmalkalden, 2012
  • Voswinckel, S.: System-related degradation mechanisms of thin-film photovoltaic modules. Day of Research, Nordhausen 2012
  • Voswinckel, S.: 100% Renewable Energies for Thuringia. Workshop industry-related research groups of the TMWAT, Ilmenau 2012
  • Voswinckel, S.: System-related degradation mechanisms of photovoltaic modules. 1st Workshop Research Group "System-related degradation mechanisms of photovoltaic modules", Erfurt 2012
  • Wesselak, V.: Energetic refurbishment of a half-timbered house. Building culture & demographic change in Eichsfeld, Uder 2012
  • Wesselak, V.: Results from the Thuringian inventory and potential atlas for renewable energies. Day of the Thuringian Housing Industry, Suhl 2012
  • Wesselak, V.: Energy-efficient refurbishment of the housing stock and affordable housing. Housing policy conference - parliamentary group Die Linke, Sömmerda 2012
  • Wesselak, V.: The ongoing topic of the energy transition in Germany. 2nd Southern Harz Economic Meeting, Nordhausen 2012
  • Wesselak, V.: Photovoltaics - Can the expansion targets be met with changed framework conditions? BWK Conference on Renewable Energies in the State of Saxony-Anhalt, Wernigerode 2012
  • Wesselak, V.: Scenarios and concepts for the energy transition in Thuringia. VDE Symposium 2012 Energy transition in Thuringia - Effects on the electricity distribution grids and implementation in device and system technology, Erfurt 2012
  • Wesselak, V.: Regional energy potentials - the energy transition in the region. Duderstadt 2012
  • Wesselak, V.: Decentralised energy supply - possibilities and opportunities in rural areas. Werther 2012
  • Link, T.: Development of a rotor blade for small and medium power wind turbines. NEMO network meeting "Lightweight construction with fibre-reinforced plastics - LeiFaK", 2011
  • Link, T.: Demonstration wind tunnel at Nordhausen University of Applied Sciences. 4th Long Night of Science, FH Nordhausen, 2011
  • Steinert, P.; Nuschke, M.: Energieeffizienz in Nichtwohngebäuden am Beispiel denkmalgeschützter Bausubstanz unter Berücksichtigung des Einsatzes Regenerativer Energieträger. Thuringian Energy Efficiency Workshop, Erfurt 2011
  • Steinert, P.: Presentation of current research projects in the field of thermal energy systems. 4th Long Night of the Sciences. Nordhausen, 2011
  • Voswinckel, S.: Presentation of current research projects in the field of photovoltaics. 4th Long Night of the Sciences. Nordhausen, 2011
  • Wesselak, V.: Basic problems of our energy system - An analysis with future perspectives. 3rd Duderstadt Energy Saving Days, Tiftlingerode 2011
  • Wesselak, V.: Reactor safety and the future of nuclear energy. Geoscientific Colloquium of the FSU Jena, Jena 2011
  • Wesselak, V.: The sustainability process in Thuringia - paths to a sustainability strategy. Final workshop on the consultation process for the Thuringian sustainability strategy, Erfurt 2011
  • Wesselak, V.: Potential analysis of renewable energies in Thuringia. Thuringia Energy Summit, Weimar 2011
  • Wesselak, V.: Architecture and energy - on the energetic refurbishment of the heating plant. BAU.ART, Erfurt 2011
  • Wesselak, V.: Energetic refurbishment of a half-timbered house. 2nd South Lower Saxony Half-Timbered House Day, Osterode 2011
  • Fischer, J.: Renewable energies and visions for the future. Energy Day of E.ON Thüringer Energie AG, Erfurt, 2010
  • Haller, J.; Wesselak, V.: The influence of spectral responsivity on the optimal alignment of PV modules. ISFH Hamelin, 2010
  • Schabbach, T.; Steinert, P.: Thermische Energiespeicher und ihre Umsetzung in Thüringen. 3rd Energy Efficiency Workshop, Erfurt 2010
  • Schabbach, T.: Thermal storage technologies for the efficient utilisation of renewable energies. Workshop on thermal energy storage - First stocktaking in Thuringia. Erfurt 2010
  • Schabbach, T.: Thermal energy storage - stocktaking for Thuringia. Ressourceneffizienz Thüringen / Forum Umweltwirtschaft, Erfurt 2010
  • Steinert, P.: Optimisation of energy efficiency using the example of the Badehaus Nordhausen. Renewable energies in the property industry - from theory to practice, Nordhausen 2010
  • Wesselak, V.: Rentabilität von Photovoltaik-Investitionen nach der EEG-Modifizierung 2010. Erneuerbare Energien in der Immobilienwirtschaft - von der Theorie zur Praxis, Nordhausen 2010
  • Wesselak, V.: Energy-efficient refurbishment of half-timbered houses - a case study. Fachwerk Triennale 2010, Duderstadt 2010
  • Wesselak, V.: Energetic refurbishment of a half-timbered house. 7th Climate Summit of the Rodachthal Initiative, Coburg 2010
  • Wesselak, V.: Goals of the Thuringian sustainability strategy. Lecture at the 10th Ökoprofit award ceremony, Erfurt 2010
  • Wesselak, V.: The future of energy. 13th Jena-Geos colloquium, Jena 2010
  • Wesselak, V.: Sustainable research at universities of applied sciences. Research Day, Jena 2010
  • Wesselak, V.: Energy and climate. Symposium of the Thuringia Sustainability Advisory Board, Nordhausen 2010
  • Dohle, A.: Novel bitumen roof covering with integrated PV cells. 12th Merseburg Solar Day, Merseburg 2009
  • Dohle, A.; Klement, H.: Novel bitumen roof covering with integrated PV cells. Long Night of Science, Nordhausen 2009
  • Fischer, J.: Energiemärkte im Wandel: Perspektiven und Herausforderungen für mittelständische Unternehmen. Nordhäuser Unternehmerverband, Nordhausen 2009
  • Fischer, J.: Promotion and value creation for renewable energies: The example of the Renewable Energies Act, EEG. IHK Erfurt, Erfurt 2009
  • Fischer, J.: Bioenergy: one of the most versatile renewable energies. GTZ seminar, Berlin 2009
  • Fischer, J.: Feeding biogas into the natural gas grid using the example of the Hardegsen/Hevensen biogas plant. Forum Bioenergie in der Metropolregion Hannover-Braunschweig-Hildesheim, Braunschweig 2009
  • Link, T.: Wind turbines. Long Night of the Sciences, Nordhausen 2009
  • Schabbach, T.: Near-surface geothermal energy / geothermal probes / cementation material - influence on efficiency. Solar thermal systems / seasonal storage - requirements and wishes for the storage material. Construction chemistry colloquium, Weimar 2009
  • Schabbach, T.: History of the utilisation of renewable energies. Long Night of the Sciences, Nordhausen 2009
  • Steinert, P.: Optimisation of energy efficiency using the example of the Nordhausen bathhouse. Long Night of the Sciences, Nordhausen 2009
  • Wesselak, V.: Basic problems of the global energy system. E.ON Kommunalgespräche, Bleicherode 2009
  • Wesselak, V.: Energy-efficient refurbishment of half-timbered houses - a case study. Fachwerk Triennale 2009, Wolfhagen 2009
  • Wesselak, V.: The Thuringian Sustainability Council and the Sustainability Strategy in the Free State of Thuringia. Conference of the Ecosocial Forum, Erfurt 2009
  • Wesselak, V.: Hydrogen does not solve energy problems! - On the contribution of hydrogen and fuel cells in a future energy system. Long Night of Science, Nordhausen 2009
  • Fischer, J.: Economic efficiency of refrigeration in biomass plants. Workshop "Cooling from heat" organised by the German Federal Environmental Foundation, Osnabrück 2008
  • Fischer, J.: Plate or tank? Quo vadis bioenergy. 1st Nordhausen Energy Forum, Nordhausen 2008
  • Fischer, J.: Economic viability of bioenergy projects. Conference Bioenergy in Municipalities, Bernburg 2008
  • Wesselak, V.: Regenerative energies, energy efficiency and economic efficiency. XV East Thuringian Environment and Technology Day, Gera 2008