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Recommendations published in Germany on Bidirectional Charging

Early 2024, the German Advisory Board of the National Centre for Charging Infrastructure for the implementation of measure 47 of Germany’s Charging Infrastructure Master Plan II published key recommendations for bidirectional charging.

The text below is a translation from German to English by the SCALE consortium, with light modifications, to share the update to a wider audience. The original text is as follows: National Centre for Charging Infrastructure, NOW GmbH [ed.], (2024). It is available in German here.

Position paper: Enabling bidirectional charging without discrimination.
Key recommendations
  • Bidirectional charging will be an interesting additional offer for EV users in the future and should be made available to them simply, safely and without discrimination.
  • It can contribute to sector coupling by providing additional flexibility. Opinions still differ on the future contribution to the energy transition and the economic benefits.
  • Among the various use cases, V2H will also establish itself on the market by 2025. Later, V2G will develop on the market through aggregators/service providers.
  • The members of the advisory board of the National Centre for Charging Infrastructure have the common goal of enabling all use cases in a non-discriminatory and competitive manner.
  • The number of bidirectional vehicles and charging systems available on the market is increasing.
  • However, the systems already available still differ in terms of the use cases they support and, in the absence of standardized system norms, have so far only worked on a priority basis.
  • From a technical perspective, plug & play solution are the aim. This requires a standardized, interoperable and barrier-free system in which the customer can connect different vehicles with different charging devices and easily network them with the energy management system at home.
  • In the next two years (2025/2026), proprietary systems will increasingly develop on the market, while interoperable systems can be expected from 2027/2028.
  • Significant legal and technical hurdles still need to be clarified for all use cases.
  • To this end, industry and politics must work together to adapt and further develop the international technical as well as European and national legal regulations in a timely manner.