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.

more info

Solar Thermal Technology

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

more info

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.

more info

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.

more info

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.

more info

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 1150, is the largest solar research institute in Europe.

Current Press Releases


Press Release #19 / 24.10.2017

VDE Renewables, Fraunhofer ISE, ERI@N launch global initiative for energy storage at the Asia Clean Energy Summit in Singapore

The VDE Global Energy Storage Competence Cluster will serve the international cleantech sector along the entire value chain and features VDE Prime Labs in Singapore, Germany and the USA. 


Press Release #18 / 4.10.2017

Center for High-Efficiency Solar Cells – Cornerstone laid for a new laboratory building at Fraunhofer ISE

The cornerstone of a new building with a clean room equipped to handle the latest technological challenges was laid on October 4, 2017 in Freiburg.


Press Release #17 / 26.9.2017

International Intercomparison of PV Modules Reaffirms Measurement Precision of the CalLab PV Modules

At 1.3 percent measurement precision, the accredited calibration laboratory of the Fraunhofer Institute for Solar Energy Systems ISE achieved a record value.


Press Release #16 / 25.9.2017

Fraunhofer ISE Pushes World Record for Multicrystalline Silicon Solar Cells to 22.3 Percent

Fraunhofer ISE has now exceeded its own world record for multicrystalline solar cells. The record cell converts 22.3 percent of the incident sunlight into electricity.

News and Events


Free Demo Version of Analysis Software SmartCalc.CTM Available

The software SmartCalc.CTM, developed by Fraunhofer ISE to efficiently optimize photovoltaic modules, is now available as a free demo version. The software analyzes the cell-to-module losses (CTM) based on the material parameters and measurement data.

Read more


The German Chancellor Fellow Kumar Abhishek Spends Year Researching at Fraunhofer ISE

Since the beginning of November, Kumar Abhishek is working as a guest scientist at the Fraunhofer Institute for Solar Energy Systems ISE as a German Chancellor Fellowship from the Alexander von Humboldt-Stiftung. Gerhard Stryi-Hipp, the mentor of the young energy process engineer from India, met Kumar several years ago during a research project in India. “Kumar Abhishek worked both in an Indian company that cooperates with Fraunhofer as well as in the Indian Ministry for Renewable Energy. His fellowship is not only a chance for him personally but also for Fraunhofer ISE. He is a perfect candidate for strengthening the existing contacts and working relationships of the Institute with Indian partners,” explains Gerhard Stryi-Hipp, Group Leader of Group Leader of Smart Energy Cities, Quarter Concepts and Heat Grids at Fraunhofer ISE.

Read more


International young talents visit Fraunhofer ISE

Leading young scientists from 21 countries visited the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg on October 17. The 25 winners of the "Green Talents Award" were informed about the research interests of Fraunhofer ISE and the Institute for Sustainable Technical Systems at the University of Freiburg. The group visited laboratories and the university campus, and met with Fraunhofer ISE scientists.

Read more


Fraunhofer ISE receives two EU PVSEC awards

The Fraunhofer Institute for Solar Energy Systems won two awards as part of the 33rd European PV Solar Energy Conference and Exhibition (EU PVSEC), the world’s largest conference dedicated to the topic of photovoltaics.

Read more


27th International Photovoltaic Science and Engineering Conference

Otsu, Japan / 11/12/2017 - 11/17/2017


8th Back Contact WORKSHOP

Freiburg, Germany / 11/21/2017 - 11/22/2017

9th PV Performance Modeling and Monitoring Workshop

Solar Research Institute of HIT, Weihai, China / 12/05/2017 - 12/06/2017


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:


Episode 03: An Espresso with… SOLAR-TRAIN scholars

In our series “An Espresso with …” we regularly carry out interviews with engaging people from the field of renewable energy. In this episode we welcomed three young scientists at our coffeetable. Ismail Kaaya, Djamel Mansour and Amantin-Panos Mehilli are scholars of the EU Horizon 2020 research project “SOLAR-TRAIN“. They reported on their initial experience […]

Read more


Photovoltaics – the ordinary madness

SolarWorld is only the latest bankrupt PV manufacturer in Germany. Many now wonder: What is the matter with photovoltaics in Germany and what is next? When trying to answer these questions, we have to look at three sectors: Politics, economy and technology. In the technical and economic sector, photovoltaics (PV) is on a triumphal march […]

Read more


Fully accredited and accepted worldwide: Solar collectors from all over the world are being tested in the TestLab Solar Thermal Systems at Fraunhofer ISE in Freiburg

The basic principle of solar-thermal collectors is simple. All utilize sunlight to warm up a heat transfer medium and thereby make heat energy available. Some supply households in our latitudes with warm water and solar thermal heating. Other technological variants are located in the sun belt of the earth. Those feed power turbines with water […]

Read more


Silicon PV in Freiburg – Interview with Dr. Ralf Preu, Ph.D.

The Silicon PV – International Conference on Crystalline Silicon Photovoltaics came back to Freiburg from 03rd to 5th of April where it began in 2011. The conference series was founded with the goal of offering an outstanding high-class scientific program on advanced technologies, materials and concepts for crystalline silicon solar cells and modules. This year, […]

Read more