Sensor Node (image) Fraunhofer-Gesellschaft Share Print E-Mail Caption Autonomously powered sensor nodes can detect reserves in the electrical grid, thus enabling significant transmission capacity increases. Credit Fraunhofer IZM Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.