Researchers of Karlsruhe Institute of Technology (KIT) have developed a novel monitoring and analysis tool for electrical power grids: The EDR – Electrical Data Recorder continuously scans grid voltage and load currents with high precision and high resolution. While power generation from renewable sources by decentralized producers is increasing, the EDR will provide deeper insight into real systems processes in the future. The data measured will enhance the quality of simulations and enable reliable control of future smart grids.