Press Releases

The Port of Rotterdam and the Fraunhofer Institute for Solar Energy Systems ISE are working with Australian partners to investigate opportunities for Western Australia to become a world-class producer, user and exporter of renewable hydrogen. Western Australia could provide for a substantial portion of the European demand for hydrogen in 2050. The TrHyHub Study, a collaboration between key stakeholders in Australia, Germany, and the Netherlands, analyzed the critical components that could deliver a supply chain from the Mid West Hydrogen Hub in Oakajee to Germany via the Port of Rotterdam. In the short term, ammonia is the most suitable option, with substantial cost savings to be anticipated in the future.

As part of the "SPHINX" research project, the Fraunhofer Institute for Solar Energy Systems ISE has set up a pilot line for PV roof tiles at Module-TEC in Freiburg. The flexible, automated production allows the project partner Freesuns, a Swiss solar roof manufacturer, to produce its newly developed matrix shingle roof tiles on a pilot scale before moving into mass production. The production line will manufacture a total of 4,000 solar roof tiles using the matrix shingle technology. Since March 2025 the first 800 modules have been produced. Freesuns is currently installing the first roof systems into 5 existing buildings in Switzerland. The new solar roof tiles are on exhibit from May 7 - 9 at Smarter E Europe / Intersolar at the Fraunhofer ISE booth in Hall A1.

Research scientists at the Fraunhofer Institute for Solar Energy Systems ISE have developed a measurement method that allows the performance of back-contacted solar cells to be determined without contact in the production line. Measuring the current-voltage characteristic curve is the most important test in solar cell quality control. Eliminating physical contact with the solar cell saves time and thus allows significantly higher throughput rates in production. It also eliminates mechanical stress on the solar cells during measurement and reduces the maintenance costs of the measuring system. The researchers tested the method for the first time in 2022 and have now successfully transferred it to IBC (interdigitated back contact) cell architectures in a production-related environment.

Wall chargers for charging electric vehicles can be found on more and more homes. But how can the solar power from your own roof be used as smartly as possible? In the “Wallbox Inspektion” project, a consortium consisting of Fraunhofer Institute for Solar Energy Systems ISE, HTW Berlin and ADAC e.V. developed the first test procedure for solar-optimized controlled charging and used it to test wall chargers available on the market. Together with an industry advisory board, a test guideline for unidirectional and solar charging was developed and the test results are quantified in a score that is easy to understand for end users. The intention is to increase transparency for consumers in the wall chargers market and establish a quality standard for the industry. The project was funded by the Federal Ministry for Economic Affairs and Climate Protection.

Reports of UV-induced degradation in TOPCon-based photovoltaic modules are currently a concern for the PV industry. The Fraunhofer Institute for Solar Energy Systems ISE is therefore investigating common test methods for their validity. The latest results of their comparative indoor and outdoor tests show that the currently used UV tests rate the degradation of TOPCon silicon PV modules significantly higher than the actual performance reduction. To achieve more meaningful test results in the laboratory, the PV modules must be stabilized after UV exposure and before performance measurement. This week, the institute presented comprehensive analyses of the recovery dynamics of TOPCon modules at the SiliconPV conference.

A research team from the Fraunhofer Institute for Solar Energy Systems ISE has evaluated over 70,000 power measurements on photovoltaic modules that have been carried out in the institute's calibration laboratory, CalLab PV Modules, since 2012. In the process, the researchers found that since around 2017, the negative discrepancy between the performance data of the PV module manufacturers and the research institute's measurement results has been increasing. Until 2016, more power was measured in the laboratory on average than was promised by the manufacturer. Since then, a negative trend has emerged, particularly in the years 2020 to 2023, leading to an average power reduction of about 1.3 percent. The latest data from 2024 show a slight turnaround.

Baden-Württemberg will not be able to meet its future demand for hydrogen and its derivatives from domestic production alone. The Fraunhofer Institute for Solar Energy Systems ISE has therefore investigated how Baden-Württemberg can be supplied by imports in the future. The researchers analyzed how and at what cost hydrogen and its derivatives methanol and am-monia can be imported via pipelines and waterways. Production in Germany was also considered for comparison purposes. European pipeline transportation is therefore the most cost-effective option. The study was funded by the Baden-Württemberg Ministry for the Environment, Climate Protection and the Energy Sector.

Proton exchange membranes (PEM) are one of the most promising technologies for the production of green hydrogen by electrolysis. To reduce the material and manufacturing costs for PEM electrolyzers, the Fraunhofer Institute for Solar Energy Systems ISE is researching scalable production processes. Now, for the first time, it has succeeded in producing ultra-fine porous transport layers made of titanium using a screen printing process, thereby reducing the cost of catalyst materials. Industry-standard, scalable equipment was used. At the Hannover Messe (March 31 to April 4, Hall 13, C41), the institute will present samples of the optimized microporous transport layer, along with other innovations.

In the future, charging stations along freeways, in parking lots or at logistics centers will have to deliver much more power in a short space of time than they do today. For this reason, new charging stations can no longer simply be connected to the low voltage power grid. In the project "MS-Tankstelle", Fraunhofer ISE and partners from industry therefore developed the medium voltage system technology for fast charging stations that will enable peak loads of several megawatts in the future. The technology, which uses efficient silicon carbide semiconductors and higher voltages, leads to lower material use and lower costs for fast charging stations. At the same time, the system is very efficient and can be flexibly applied to charging stations of different sizes and different vehicle types. A demonstrator of one charging point can be viewed at the Fraunhofer Energy Alliance booth at the E-World from 11-13 February in Essen, Germany (hall 5, D 126).

In Germany, net public electricity generation from renewable energy sources reached a record share of 62.7 percent in 2024. Solar power generation reached a new record of 72.2 terawatt hours in 2024, and the expansion of photovoltaics continued to exceed the federal government's targets. As the share of electricity generation from lignite (-8.4%) and hard coal (-27.6%) continued to fall sharply, the carbon dioxide emissions in the German electricity mix were lower than ever before. The balance of imported electricity rose to 24.9 terawatt hours. These figures are the results of an analysis presented by the Fraunhofer Institute for Solar Energy Systems ISE. The analysis is based on the data available on the platform energy-charts.info.