Diehl Metering supported Garbsen in implementing a future-proof IoT network that makes the city a sustainable and smart city.. Diehl Metering first assisted in choosing the most suitable IoT technology through an independent IoT technology training, then in collaborative network planning, and finally in implementing the entire network installation. The choice of the mioty® technology was made, since it ensure a secure and long-lasting network for different smart city use-cases.