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 #24 / 24.10.2018

Joint Research by Fraunhofer ISE and Heraeus for High-performance Solar Modules: Novel Cell Connector Increases Power by 1.9 W

The Fraunhofer Institute for Solar Energy Systems ISE and Heraeus are researching and optimizing novel, selectively coated cell connectors in a joint research project. The Selectively Coated Ribbon (SCRTM) cell connector achieves an average gain of 1.9 W in conventional 60-cell solar modules.


Press Release #23 / 11.10.2018

Chillventa 2018: Fraunhofer ISE Puts Focus on Heat Pumps

At the Chillventa, the international trade fair for cooling, air-conditioning, ventilation and heat pumps, the Fraunhofer Institute for Solar Energy Systems ISE focuses on the potential and the current challenges facing heat pumps in a special presentation.


Press Release #22 / 21.9.2018

Fraunhofer ISE with over 60 Contributions at the European PV Solar Energy Conference and Exhibition

Europe is leading worldwide in PV research and development as demonstrated by the 35th European PV Solar Energy Conference and Exhibition EU PVSEC, held this year in Brussels from 24-28 September 2018. 


Press Release #20 / 4.9.2018

Artificial Intelligence Used to Economically and Energetically Control Heating Systems

Fraunhofer ISE developed self-learning artificial neural networks (ANN) for controlling solar thermal heating systems in the project “ANNsolar – Neural Networks for the Use in Solar Thermal Systems.”

News and Events


MinWaterCSP Provides Technical Solutions for Efficient Water Use in CSP Plants

The international research and development project MinWaterCSP addresses the challenge of reducing the water consumption of CSP plants and improving thermal cycle efficiencies of Concentrated Solar Power (CSP) plants. After three years of work, 13 partners from 6 different EU and non-EU countries have developed new technologies for reducing water consumed for cooling and mirror cleaning. During the 2nd International Conference on the “Reduction of Water consumption in CSP plants” in Stellenbosch, South Africa (7-8 November 2018), the consortium presents its final results.
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Living Spaces of the Future: digital - sustainable - smart

Digitization, climate change, scarcity of resources and housing shortages - these trends call for society, business and research alike to change their ways. The construction industry also has to develop innovative and sustainable solutions to meet the constantly growing demands placed on buildings. It is becoming increasingly important to think in cross-industry terms and act via networks. The member institutes of the Fraunhofer Building Innovation Alliance are working continuously on interdisciplinary solutions and systems to actively shape the "living spaces of the future". With its special show at BAU 2019, Hall C2, Booth 528, the Fraunhofer alliance will be presenting innovative products and system solutions from its construction research.
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Sustaining Photovoltaics Production in Europe – Becquerel Prize Recipients Appeal to Decision Makers

Over the past decades, the renewable generation of electricity by photovoltaic solar energy (PV) has come down in costs dramatically and is now economically competitive with conventional generation using fossil fuels or nuclear reactors in an increasing number of markets. Convinced that solar electricity will play a dominant role in the energy supply of 2050 and given the leading role held by European research institutes in the development of PV technology, awardees of the Becquerel Prize collectively drew up a resolution. At the largest European photovoltaic conference, the 35th EU PVSEC in Brussels, the award-winning European scientists collectively expressed their concern that the European photovoltaic industry is threatened to be lost due to the strong competition from Asia. In particular, this pertains to the cell and module production, which makes up a large part of the value chain. This loss presents a strategic risk to the future electricity supply of Europe.
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Workshop on PV Module Reliability

The Fraunhofer Institute for Solar Energy Systems ISE and the University of Ljubljana, Slovenia, invite to the 2018 SOPHIA workshop »PV Module Reliability« from September 4 to 5 in Ljubljana, Slovenia. The workshop will feature reliability aspects in connection with new challenges imposed by novel components of PV modules, presently observed failure modes and the further development of suitable test cycles towards service life testing. The workshop will be embedded in a EUROREG workshop which is intended to provide a forum of global trends and current challenges on photovoltaics and nanophotonics in the fields of research, industry and market.
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VDE Tec Summit

Berlin, Germany / 11/20/2018 - 11/21/2018

MRS Fall Meeting & Exhibit

Boston, USA / 11/25/2018 - 11/30/2018

BAU Munich

Munich, Germany / 01/14/2019 - 01/19/2019

PowerSkin Conference 2019

Munich, Germany / 01/17/2019


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:


Collaboration Cluster for Photovoltaic Silicon Material Characterization

The »Collaboration Cluster for Photovoltaic Silicon Material Characterization« is a partnerhship between Fraunhofer ISE, the Australian National University (ANU) and the University of New South Wales (UNSW). The Collaboration Cluster for Photovoltaic Silicon Material Characterization is aiming for a strong partnership of the Fraunhofer ISE with the Universities in Australia, the Australian National University (ANU) [...]
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Worldwide innovation: A venetian blind that supplies solar thermal energy

A newly developed solar thermal venetian blind uses the heat generated by solar radiation and feeds it via heat pipes to the hot water storage tank of the building. … When you think of solar thermal energy, you think of “black rectangles on the roof”. To date, this has been one barrier to the widespread [...]
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Building bridges between India and Germany: One year as a Chancellor Fellow

It is not every day you meet the Federal Chancellor of Germany. However, for the current German Chancellor’s Fellows of the Alexander von Humboldt Foundation, this visit is on program every year. Recently, as the current German Chancellor Fellow and Guest Scientist at Fraunhofer ISE, I got an opportunity to meet Dr. Angela Merkel. Every [...]
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Episode 05: An Espresso with… Prof. Christoph Reinhart

Professor Christoph Reinhart came to Fraunhofer ISE as the winner of the Fraunhofer Bessel Research Award of the Humboldt Foundation for a research stay. He works as a building scientist and architectural educator at the Massachusetts Institute of Technology (MIT), where he focuses on sustainable building design and environmental modeling. For the series “An Espresso [...]
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