Lessons Learned from Field Test Data of a Robust Smart Grid Concept

The future energy system needs to be reliable, affordable for all parties, and capable of integrating fluctuating renewable energy sources into the grid. In this work we present first field test results of a resilient Smart Grid concept using dynamic tariff rates for end customers. The tariff system is based on the course of the EPEX Day-Ahead electricity price. Ripple control was used as a robust and reliable communication system. This work focuses on three main aspects: the reliability of the communication system, the financial advantages for the end-customers, and the load shifting potential given by the external incentive signals. Results show that ripple control is an adequate communication system for sending tariff information signals to the end customers. A financial benefit for all field test participants was achieved by implementing the dynamic tariff system. We show that during the field test period, the Prosumers changed their energy consumption behavior when stimulated by the external incentives.