Today, a 3 m diameter hollow concrete sphere has been recovered from the bottom of lake Constance where it had been operated in a 4 week test in a deph of around 100 m. The energy storage and release feature of this novel storage concept could be demonstrated sucessfully, so the principle is now proven experimentally. Currently, the test results are being evaluated to inform and validate the computer models developed by IWES.
Design of the Energiewende
We support industry and politics in all systemic, technical and economical questions concerning the transformation of energy systems.
An important technical step for a new smart grid laboratory at the Electrical Energy Research Center CEPEL in Brazil has been successfully designed by Cepel together with the German Fraunhofer Institutes IWES in Kassel and FOKUS in Berlin.
New solution to optimization problems of demand response
The deployment of demand response in private households poses complex issues in terms of fulfilling both restrictions of the grid and flexibility constraints of the households. Researchers at Fraunhofer IWES have developed stochastic optimizations based on probabilistic forecasts, which consider these restrictions.
Scientists at Fraunhofer IWES in Kassel aim to contribute to further cost reductions in wind energy use. They will present results of an large scale expert survey on future cost reduction potential at the Wind Europe Summit 2016 in Hamburg, the world's largest wind energy event.
Better Forecasting For Solar And Wind Power Generation
The sun does not shine and the wind does not blow with constant intensity. This is a problem for the power grid, where the power supply must always match the power demand. In the EWeLiNE project, Fraunhofer and the German Weather Service have been working to develop better models for forecasting the generation of renewable electricity. Now they have launched a platform for transmission system operators to test the new models live.