Abstract:

Smart charging of electric vehicles is a promising concept for solving the challenges faced by connecting mobility and electricity within the context of the ongoing sustainable energy transition. It allows cost savings for expanding and operating the power grid and more efficient use of renewable energies. However, the broad implementation of smart charging requires further work on technical and regulatory issues and further development of standards, especially an end-to-end consistency of the control signals. A fully automated process, customizable services, and flexible tariffs would facilitate wider market penetration. The novelty of this paper is the consensus of German pilot projects funded within the German programme “Elektro-Mobil” on the communication channel between all stakeholders for the use cases of smart charging based on market price incentives. Within this consensus, the projects have illustrated how specific standards can facilitate the communication between smart charging stakeholders, become a reality in the pilot projects, and should be applied to further use cases in the low-voltage network. On this basis, the standards can be adjusted to ensure that the control signals are constant from the start of the control process to the finish. In an advanced Edition, solutions for prioritizing and orchestrating the different control signals could be designed.