Annual Report 2008 Conferences and Trade Fairs in 2009 with Fraunhofer ISE participation - 14. Symposium Licht und Architektur, Achievements and Results Kloster Banz, Bad Staffelstein, 12.–13.2.2009 - 24. Symposium Photovoltaische Solarenergie, Kloster Banz, Bad Staffelstein 4.–6.3.2009 - Hannover Messe, Stand Fraunhofer-Allianz Energie, Hannover, 20.–24.4.2009 - 19. Symposium Thermische Solarenergie, Kloster Banz, Bad Staffelstein, 6.–8.5.2009 - Intersolar, München, 27.–29.5.2009 - Intersolar North America, San Francisco, USA, 14.–16.7.2009 - 3rd Heat Powered Cycles Conference, Berlin, 7.–9.9.2009 - 15th International SolarPACES Symposium, Berlin, 15.–18.9.2009 - 24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, 21.–25.9.2009 - f-cell Forum, Stuttgart, 28.–29.9.2009 - 3rd International Conference on Solar Air-Conditioning, Palermo, Italien, 30.9.–2.10.2009 - Solar Summits Freiburg: Solar Buildings, Freiburg, 14.–16.10.2009 Annual Report Achievements2008 and Results Fraunhofer Institute for Solar Energy Systems ISE Heidenhofstr. 2 79110 Freiburg Germany Tel. +49 (0) 7 61/45 88-0 Fax. +49 (0) 7 61/45 88-90 00 [email protected] www.ise.fraunhofer.de Fraunhofer Institute for Solar Energy Systems ISE The “Solar Summits Freiburg” will be held for the second time from 14th to 16th October, 2009. This time, the scientific conference will address the topic of “Solar Building”. Leading represen- tatives from science and industry will present the latest techno logical developments from solar energy research, as well as innovative building concepts and project ideas from the solar and energy-efficient building sectors. Fraunhofer ISE is responsible for the scien tific programme of the conference. With its numerous, high-quality lectures and discussions, the conference will offer a comprehensive overview of the diverse applications of solar technology in buildings. Further information including registration details can be found under www.solar-summits.com The Fraunhofer Institute for Solar Energy Systems ISE is committed to promoting energy supply systems which are sustainable, economic, safe and socially just. It creates technological foundations for supplying energy efficiently and on an environmentally sound basis in industrialised, threshold and developing countries. To this purpose, the Institute develops materials, components, systems and processes for the following business areas: energy-efficient buildings and technical building components, applied optics and functional surfaces, silicon photovoltaics, alternative photovoltaic technology, renewable power generation and hydro- gen technology. Beyond the solar sector, it also has expertise on display technology, lighting technology, water purification and electromobility. With activities extending well beyond fundamental scientific research, the Institute is engaged in the development of production technology and proto-­­ types, the construction of demonstration systems and the operation of testing centres. The Institute plans, advises, tests and provides know-how and technical facilities as services. Fraunhofer ISE has been certified according to DIN EN ISO 9001:2000 since March, 2001. Table of Contents Foreword 6 Organisational Structure 8 The Institute in Brief 10 R & D Highlights of 2008 12 Professorships, Awards and Prizes 13 Board of Trustees 14 Energy-Efficient Buildings and Applied Optics and Technical Building Components 16 Functional Surfaces 32 - Energy Supply Units for Residential - High-T-Resistant Absorber Coating Buildings (heat pumps, micro-CHP) 20 for Fresnel Collectors 36 - Component Development for New - Gasochromic Façade Systems 37 and Established Heat Pump Concepts 21 - Optical Nanostructures - Low-Exergy Surface Cooling Systems for Photovoltaics 38 with Phase Change Materials (PCM) 22 - Optimisation of Optics for - Research on Solar Cooling accompanying Concentrator Photovoltaics 40 the “Solarthermie2000plus” Funding Programme 23 - Evaluation Methods for Building Envelopes 24 - Optical Simulation of Solar Collectors with Reflectors 25 - New Concepts for Solar Air Collectors 26 - “inHaus2” Research Centre for Non- Residential Buildings in Duisburg 27 - Low-Exergy Concepts to Supply Buildings with Energy Efficiently 28 - Quantifying Visual Comfort under Daylight Conditions 29 - Polymer Materials for Solar Thermal Applications 30 - Measurement and Analysis of a Building Clad with a Composite Vacuum-Insulation Panel (VIP) System 31 2 –Fraunhofer ISE Annual Report 2008 Silicon Photovoltaics 42 Alternative Photovoltaic Technology 62 - SIMTEC – Silicon Material Technology - III-V Multi-Junction Solar Cells and Evaluation Centre 46 with Efficiency Values > 41 % 66 - Work towards Cost-Effective - ConTEC – Concentrator Technology Epitaxial Thin-Film Solar Cells 48 and Evaluation Centre 67 - Screen-Printed Solar Cells with - Investigation of the Long-Term Thermally Stable Back-Surface Stability of Organic Solar Cells 68 Passivation 49 - Dye Solar Cells Progressing - Laser Ablation Processes for towards Market Introduction 69 Industrial Solar Cell Production 50 - Inkjet Technology to Structure Highly Efficient Industrial Solar Cells 51 - Wet-Chemical Processing Technology 52 - Single-Wafer Tracking in Solar Cell Production 53 - Microscopic Analysis of Silicon Materials 54 - Hot Spots at Reverse Breakdown Points in Defect-Rich Silicon Solar Cells 55 - High-Efficiency Solar Cells of n-type Silicon 56 - High-Efficiency Solar Cells with Printed Contacts 57 - Application of Laser Chemical Processing (LCP) for p-type Laser Doping 58 - Precise Connection Technology for Solar Cells 59 - The “Solar Valley Mitteldeutschland” project in the Federal Cluster of Excellence Programme 60 - The Fraunhofer Centre for Silicon Photovoltaics CSP 61 Fraunhofer ISE Annual Report 2008–3 Renewable Power Generation 70 Hydrogen Technology 86 - New Generation of Photovoltaically - Fully Automated, Portable 300 Wel Powered Reverse-Osmosis Reformer/Fuel Cell System 90 Desalination Plants 74 - Fully Automatic Pyrolysis System for - Lithium Batteries for Plug-In Hybrid High-Temperature PEM Fuel Cell 92 Vehicles and Stationary Applications 75 - Direct Generation of Electricity - Modelling and Development of Control from Ethanol 93 Strategies for Redox-Flow Batteries 76 - System Simulation of Miniature - Characterisation of Photovoltaic Fuel Cell/Battery Hybrid Systems 94 LED Lamps 77 - Kinetic Investigations of - Smart Metering System with Feedback on Direct Ethanol Fuel Cells 95 Consumption, Costs and CO2 Emission 78 - Low-Cost – High-Tech: Miniature - VIRTPLANT – Optimisation of Distributed Fuel Cells Approaching Series Production 96 Power Plants in Freiburg 79 - Redox-Flow Batteries – Electric Storage - New Simulation Models for Systems for Regenerative Energy 97 Optimised Yield Forecasts 80 - Mutual Shading in Tracking Photovoltaic Plants 81 - Power Quality Functions of PV Inverters 82 - Reliability and Durability of Photovoltaic Modules 83 - Comparison of Concepts for Solar-Thermal Power Plants 84 4 –Fraunhofer ISE Annual Report 2008 Facts and Figures Service Units 98 Visiting Scientists 108 - VDE-Fraunhofer ISE Test Centre for Participation in National Photovoltaics (TZPV) 102 and International Organisations 108 - Quality Assurance for PV Systems 103 - Calibration of Solar Cells and Congresses, Conferences Modules (CalLab) 103 and Seminars 110 - Characterisation and Qualification Testing of Electric Components 104 Lecture Courses and Seminars 111 - Measurement and Testing of Ventilation Equipment and Heat Pumps 104 Trade Fairs and Exhibitions 112 - Testing Centre for Thermal Solar Systems (PZTS) 105 Doctoral Theses 112 - Measurement of Façades and Transparent Components (TOPLAB) 106 Patent Applications 113 Patents Granted 114 Press Releases 115 Publications in Reviewed Journals 116 Books and Contributions to Books 119 Lectures 120 Fraunhofer ISE Annual Report 2008–5 The entire year 2008 brought Fraunhofer ISE a series of inaugurations. Among them, the new Silicon Material Technology and Evaluation Centre SIMTEC has special prominence. Here, we have established a complete wafer-process- ing line – from crystallisation through sawing to cleaning of the wafers. Above all, our development work on alternative (“dirty”) silicon for solar cells will be concentrated in SIMTEC. This topic has become particularly significant due to the commercial introduction of purified or „upgraded“ metallurgical grade (umg) silicon this year. The new VDE-Fraunhofer ISE Test Centre for Photovoltaics (TZPV), which we operate jointly 2008 was by far the most successful year to with VDE, was able to move into new labora- date for Fraunhofer ISE. I would like to express tories in autumn, allowing it to double its my admiration and sincere gratitude to all testing capacity. The close co-operation with colleagues for this achievement. the industry in all of our testing centres (see page 99 ff) is of great benefit both to our indus- With a total budget for 2008 (including invest- trial partners and to Fraunhofer ISE. In addition ments) that exceeded 50 million euros for the to pure testing services, we are able to offer first time, our Institute experienced an increase knowledge-based advice as a result of our of 20 percent compared to 2007. Only 12 per- research work in the relevant technologies. cent of the income was from Fraunhofer base funding. The staff numbers have increased even In future, the work of Fraunhofer ISE will expand more rapidly – from over 600 to more than 800 beyond