Press Releases 2021

Cancel
  • Press Release #18 / 2021

    Project PV-Live: New solar irradiance data set published

    August 04, 2021

    Reliable projections and forecasts of photovoltaic generation are becoming more and more important to maintain a stable power grid and for solar energy trading on the electric power exchange. To improve such projections, the Fraunhofer Institute for Solar Energy Systems ISE and the transmission system operator TransnetBW have set up a network of measurement stations which record the current irradiance conditions in the control area on a minute-by-minute basis. These data are also extremely valuable for research in solar energy meteorology. The project partners have released the first quality-controlled data sets, thus making measurement data since September 2020, now publicly available.

    more info
  • The Fraunhofer Institute for Solar Energy Systems ISE, supported by PSE Projects GmbH, has been publishing the PV Report on a regular basis for the past decade. The report contains a compilation of the most important facts on photovoltaics (PV) in Germany, the European Union and worldwide, documenting, in particular, the development of the photovoltaic market, solar cell and module efficiency as well as the prices over the last decades. The latest edition is freely available on the Fraunhofer ISE website as of today.

    more info
  • The Fraunhofer Institute for Solar Energy Systems ISE just presented the data on the net electricity generation for the public power supply for the first half of 2021 from the Energy Charts data platform. At 47.9 percent, the share of renewables in the electricity mix coming out of the socket was much lower than in the first half of 2020 (55.8 percent). In the first six months of 2021, solar and wind fed a total of 87.3 terawatt hours (TWh) into the public grid, compared with 102.9 TWh within the same time period in 2020. This was mostly due to the large drop in wind power, which declined by 20.5 percent compared to 2020. In contrast, the share of net electricity generation in the public power supply from brown coal (+37.6 percent), hard coal (+38.9 percent), gas (+18.6 percent), hydropower (+15.9) and nuclear power (+7.1 percent) all increased.

    more info
  • Example of a possible system design for floating PV.
    © Fraunhofer ISE

    Floating photovoltaic power plants can contribute to the expansion of renewable energy without taking up land. The Fraunhofer Institute for Solar Energy Systems ISE, RWE Renewables and the Brandenburg University of Technology Cottbus-Senftenberg (BTU) are working together to further develop this innovative technology with other partners. In the joint research project PV2Float, the partners are to test several floating PV systems with different structure designs under real conditions over a three-year period. An Evaluation for a suitable open pit lake for the implementation is currently ongoing.

    more info
  • © Fraunhofer ENIQ

    Fraunhofer Energy Research has a new location: the showroom "ENIQ - Energy Intelligence by Fraunhofer" located on the EUREF campus in Berlin. The facility functions as an interactive platform to serve the transfer of knowledge. Stake-holders from business, politics and society can discuss relevant topics with sci-entists, initiate projects and create innovations. Event formats for different tar-get groups are complemented by an exhibition area where innovative demon-strators and exhibits from Fraunhofer Energy Research are on display.

    more info
  • 68.9 Prozent Rekordzelle
    © Fraunhofer ISE / Foto: Henning Helmers

    In addition to the classical applications for solar cells on roofs and open spaces, photovoltaic devices can also be used with laser light for efficient power transmission. At the 48th IEEE Photovoltaic Specialists Conference, researchers from the Fraunhofer Institute for Solar Energy Systems ISE recently presented how they were able to achieve a record conversion efficiency of 68.9% with a photovoltaic cell under monochromatic laser light. For this, the research team used a very thin photovoltaic cell made of gallium arsenide and applied a highly reflective, conductive mirror on the backside.

    more info
  • Stromgestehungskosten für erneuerbare Energien und konventionelle Kraftwerke an Standorten in Deutschland im Jahr 2021
    © Fraunhofer ISE

    Researchers at the Fraunhofer Institute for Solar Energy Systems ISE have presented the newest edition of their study on the levelized cost of electricity (LCOE) of renewable power plants. The fifth edition of the study analyzes the current costs and forecasts the future cost development up to 2040 based on technology-specific learning rates and market scenarios. "Wind and solar power plants in Germany have significantly lower LCOE costs than conventional power plants. Due to the rising price of CO2 certificates, the cost competitiveness of even existing coal and gas-fired plants will further decrease in the coming years," says project head Dr. Christoph Kost.

    more info
  • In a brief study, scientists in the Energy Systems Analysis department at Fraunhofer ISE recently evaluated the data of photovoltaic systems registered in the Market Master Data Register (MaStR) and the master data set for subsidized systems. An important finding of the analyses is that the largest growth in PV capacity is taking place in the sector of rooftop PV systems larger than 100 kW. This sector accounts for 38 % of new PV systems. Also interesting is that 22 % of the newly installed PV systems are oriented to the west, east or east-west, and 19 % of these systems have tilt angles smaller than 20 degrees.

    more info
  • Hybrid modules city hall Freiburg
    © Fraunhofer ISE

    After completion in 2017, the city administration building "Rathaus im Stühlinger" in Freiburg was measured and analyzed in detail during the first years of operation. The good news is that the targets set in the planning phase agree with the actual consumption data to a large extent. The building and the building systems are highly efficient. In a yearly balance, the total energy consumption for the building conditioning (heating, ventilation, lighting, domestic hot water heating) is met almost entirely by the renewable energy produced onsite. Thus, the goal of achieving a net zero energy building has been achieved.

    more info
  • JOINT PRESS RELEASE BY FRAUNHOFER ISE, ÖKO-INSTITUT AND HAMBURG INSTITUT / 2021

    How the Building Sector Can Achieve Its Climate Targets After All

    May 11, 2021

    With the currently adopted climate protection measures, Germany will neither achieve its previous, nor the more stringent European, climate protection targets in the building sector by 2050. Two roadmaps from the Fraunhofer Institute for Solar Energy Systems ISE, the Öko-Institute and the Hamburg Institute show how this achievement, however, can be made possible. The research team presents the adequate measures and policy instruments with which decentralized heat generation no longer emits carbon dioxide, final energy consumption can be reduced, and heat grids can be expanded. The analyses and the roadmaps underline the great urgency with which policymakers must act: Most of the instruments should be introduced and implemented before 2025. The research results, including the detailed analysis and roadmaps, are presented in the study "The Systemic Challenge of the Heat Transition" which was commissioned by the German Federal Environment Agency.

    more info