Der Bundestag hat überraschend eine wichtige Entscheidung zur bisherigen Mehrfach-Belastung von Strom beim bidirektionalen Laden getroffen. Die Netzentgelte

Der Bundestag hat überraschend eine wichtige Entscheidung zur bisherigen Mehrfach-Belastung von Strom beim bidirektionalen Laden getroffen. Die Netzentgelte

What can we learn from this fruit about bidirectional charging of electric cars? It is when they are exposed to volatility that they fully reveal their flavour. In Germany, the energy regulator Bundesnetzagentur has proposed a plan to integrate residential energy storage and bidirectional EV charging more effectively into the energy market. Currently, the PV feed-in tariff and associated regulations pose an obstacle to storing both locally generated energy and grid electricity for later use, including feed-in back to the grid. The 'MiSpeL' proposal is now open for consultation. It provides two pathways for the administrative separation of the two types of electricity sources, ensuring that home batteries and V2G-equipped cars can use both types and can be effectively integrated into the energy market. This enables applications that go beyond behind-the-meter use cases (primarily owner-only benefits) and allows system-interactive charging and discharging. This enables wider benefits for both the user and the system. This proposal is aptly named after the 'Mispel', the German name for the medlar tree (Mespilus germanica). A fruit that only reveals its full flavour after exposure to volatility: grown in the sun, seasoned by frost. Also one of the few indigenous fruits available in winter. A tree that is regaining popularity in permaculture (food forests) as a reliable, low-maintenance addition. These are all desirable characteristics for stationary and mobile (V2G) batteries: made truly useful by exposure to price volatility, a welcome addition when other energy sources are unavailable, and able to realise their full potential in low-maintenance, set-and-forget mode. This 'MiSpeL' change is necessary due to the specifics of the German PV feed-in tariff, but its approach may also be relevant in other European countries. It is one of many building blocks that are also discussed in a new report by FfE (and project partners), authored by Patrick Vollmuth, Valerie Ziemsky and Vincenz Regener. Although focused on the German regulatory environment, it is certainly also instructive for other European countries. What stands in the way of scaling bidirectional charging of EVs? What solutions are known, and what benefits do they unlock? And also: who should take action, and when? That is a particularly welcome order in the multitude of necessary actions. Some short-term actions can now be taken to enable progress, while other challenges can be addressed later (e.g. pruning regulation), on the right scale. But now might be the time to plant those seeds. How bidirectional charging can unfold its full potential – as a valuable addition for users, for the energy system, for the local network – is also a question there. Exposing it to the appropriate degree of volatility – market, local network – is part of the answer in every area.

Der Bundestag hat überraschend eine wichtige Entscheidung zur bisherigen Mehrfach-Belastung von Strom beim bidirektionalen Laden getroffen. Die Netzentgelte