Fraunhofer Institute for Solar Energy Systems ISE


Photovoltaic technology is an essential component to transform today’s carbon-based energy system into one with its foundations in renewable and sustainable energy sources.

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Solar Thermal Technology

For the transformation of the thermal energy systems, solar thermal energy is a central component alongside energy efficiency.

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Building Energy Technology

More than 40 % of the end energy demand in most industrial countries is caused by the building sector, thus it has a major role to play in reaching the targets for climate protection.

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Hydrogen Technologies

Hydrogen, produced by electrolysis using electricity from renewable energy sources, can be used according to need across many sectors for a variety of applications; for example, in the sustainable mobility sector for fuel cell vehicles, etc.

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Energy System Technology

Energy system technology, which optimizes the interaction between generators, consumers and their control and addresses the management of energy distribution and storage, is one of the most important areas needing work for the energy transformation.

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R&D for Energy Transition

The Fraunhofer Institute for Solar Energy Systems ISE creates the technological foundations for supplying energy efficiently and on an environmentally sound basis in industrialized, threshold and developing countries. With its research focusing on energy conversion, energy efficiency, energy distribution and energy storage, it contributes to the broad application of new technology.

Fraunhofer ISE develops materials, components, systems and processes in five business areas. In addition to its R&D, the institute offers testing and certification procedures. Furthermore, it features an excellent laboratory infrastructure and is certified according to the quality management standard, DIN EN ISO 9001:2008. Founded in 1981, Fraunhofer ISE, with a staff of 1200, is the largest solar research institute in Europe.

Current Press Releases


Press Release #19 / 10.7.2018

Photovoltaic Technology Evaluation Center PV-TEC Reopens as an Innovation Platform for the PV Industry

After a fire badly damaged the facility last year, the Fraunhofer ISE Photovoltaic Technology Evaluation Center PV-TEC was officially reopened on July 9, 2018.


Press Release #18 / 20.6.2018

Agrophotovoltaics Goes Global: from Chile to Vietnam

Agrophotovoltaics (APV) has already been successfully demonstrated in pilot projects in several European countries. The next step is to establish a proof of concept for the technology in developing and threshold countries. Due to the higher levels of solar radiation in these countries, APV can make better use of its strengths.


Press Release #17 / 18.6.2018

Dispensing Head, BIPV and Novel Battery Storage: Fraunhofer ISE is presenting this and more from June 20-22, 2018 at the Intersolar Europe in Munich

The reseachers of the Fraunhofer ISE will be presenting their newest developments in Hall A1.540.


Press Release #16 / 30.5.2018

New High-Voltage Silicon Carbide Inverter Enables Stabilization of Medium-Voltage Grids

Researchers at the Fraunhofer ISE developed and successfully put into operation a new high-voltage silicon carbide inverter for direct feed-in to the 10 kV medium-voltage grid.

News and Events


New world record for direct solar water-splitting efficiency

Hydrogen will play a central role as a storage medium in sustainable energy systems. An international team of researchers has now succeeded in raising the efficiency of producing hydrogen from direct solar water-splitting to a record 19 per cent. They did so by combining a tandem solar cell of III-V semiconductors with a catalyst of rhodium nanoparticles and a crystalline titanium dioxide coating. Teams from the California Institute of Technology, the University of Cambridge, Technische Universität Ilmenau, and the Fraunhofer Institute for Solar Energy Systems ISE participated in the development work. One part of the experiments took place at the Institute for Solar Fuels in the Helmholtz-Zentrum Berlin.
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Chemiepark Bitterfeld-Wolfen GmbH invests in Fraunhofer ISE Spin Off NexWafe GmbH

Chemiepark Bitterfeld-Wolfen GmbH (CPG), site operator and infrastructure service provider of Chemiepark Bitterfeld-Wolfen, has become a shareholder of NexWafe GmbH. NexWafe GmbH is commercializing a technology developed at Fraunhofer ISE for epitaxial fabrication of silicon wafers for photovoltaics.
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Clean and Green: Fraunhofer ISE at the IFAT Trade Fair

The IFAT, the world’s leading trade fair for water, sewage, waste and raw materials management, is being held in Munich, Germany from May 14 – 18. About 3100 exhibitors and more than 130 000 visitors are expected to attend. The Fraunhofer Institute for Solar Energy Systems ISE is presenting their innovations for clean water at a communal booth together with the Fraunhofer Alliance SysWasser and the Solar Spring GmbH (Hall B2, Booth 215/314).
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Humboldt Award Winner on Research Stay at Fraunhofer ISE

Professor Christoph Reinhart from the Massachusetts Institute of Technology (MIT) is currently spending time at the Fraunhofer Institute for Solar Energy Systems ISE as visiting researcher and award winner of this year’s Fraunhofer-Bessel Research Award of the Humboldt Foundation. He will be spending five weeks at the institute working together with Fraunhofer researchers. During his research stay, Reinhart will be cooperating with scientists at Fraunhofer ISE and other European research institutes to define future-oriented themes and research topics in the areas of building technologies and smart cities.
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EES North America – Electrical Energy Storage North America

San Francisco, USA / 07/10/2018 - 07/12/2018

Battery Tech 2018

– International Conference on Battery and Fuel Cell Technology

London, UK / 09/10/2018 - 09/11/2018


FVA Seminar Introduction to Lithium-Ion Battery Technology

Freiburg / 09/18/2018 - 09/19/2018


 – International Conference on Nanoimprint and Nanoprint Technologies

Braga, Portugal / 09/18/2018 - 09/20/2018


Scientific Blog of Fraunhofer ISE


We want to share our expertise with you. The scientific blog of Fraunhofer ISE  »Innovation4E« offers a platform for information and exchange.

New Articles on Innovation4E:


Printed in-situ Perovskite Solar Cells Save Resources and Can Be Produced Locally

In the past years, the cost of photovoltaics has fallen rapidly. Today the cost of electricity production from solar PV modules has become so low that PV is now cost competitive with fossil fuel energy sources. This became possible through the successful transfer of R&D results to the practice and also due to the fast [...]
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Wire Structure Heat Exchangers: A Better Design for Air Cooled Condensers?

Air cooled condensers for dry heat rejection are generally enlarged on the air side by different kind of fins, such as louvered fins, wavy fins or offset strip fins. These fins are manufactured by metal sheets and connected to the tube walls by a metal-joining process. However the possible surface area enlargement is in the [...]
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Major Event for Innovation: MATS Power Plant Officially Opens in Egypt

At the end of February the MATS power plant (Multipurpose Applications by Thermodynamic Solar) was officially inaugurated in Borg El Arab near Alexandria in Egypt. The solar thermal power plant is the first of its kind and was developed in a project with participants from research centers and industry from Italy, France, UK, Germany and [...]
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Thermal Comfort for Electric Vehicles – Longer driving range for electric vehicles through optimized battery management

What is the ideal operating temperature for electric cars? At what temperature do they perform best? The participants of the European research project JOSPEL are addressing just these questions by assessing the optimization potential of electric vehicles. The project aim is to increase the energy efficiency and range of electric vehicles by applying efficient and [...]
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