Challenges and recommendations for a quick and cost-effective integration of charging infrastructure into the power grid

Electrifying road transport is crucial to reduce transport emissions and to help meet climate goals. Building out charging infrastructure and its local power grid connections remains one of the main bottlenecks in accelerating electrification of passenger cars, as well as delivery and long-haul transportation of goods. This joint paper by Agora Energiewende, Agora Verkehrswende and RAP reviews key use cases for electrification: EV home charging, charging of regional delivery trucks, and charging along highways for electric long-haul trucks. It identifies case by case barriers and solutions for electrification in the German context. 

The paper also offers key recommendations to prepare power grids facilitating optimal grid integration of both electric passenger cars and trucks. These include:

  • Making hosting capacity maps available for power grids to support planning of charging infrastructure;
  • Accelerating and streamlining grid connection procedures for new connection requests, e.g. for charging hubs; and
  • Introducing time-varying network tariffs including for mid- and high-voltage grids to reinforce price signals, helping consumers to charge at optimal times. 

Challenges for power grids are manifold considering the need for road transport electrification, especially for heavy duty trucks with larger batteries. While at the same time, other sectors such as heating and industry are electrifying, too. Early and holistic planning that enable power grids to serve these electrification needs, and smartening consumption via price signals, is the key to successful road transport electrification. Optimised charging will reduce cost of the energy transition, and the transition to clean transport overall. 

Please note: this paper is in German. 

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