Germany’s Federal Network Agency has proposed new rules that would grant bidirectional charging for electric vehicles the same regulatory treatment as stationary battery storage, a step aimed at enabling cars to feed electricity back into the grid or household systems under an integrated framework.
The draft regulation, titled “Market Integration of Storage and Charging Points” (MiSpeL), is designed to open market access for both fixed and mobile storage units. Under the framework, EV charging points with bidirectional capability would be treated like home batteries, making them eligible for grid feed-in and remuneration schemes.
The plan is intended to increase flexibility in the electricity system by allowing both EVs and stationary batteries to store power during periods of high renewable generation and lower prices, then discharge when supply is tight and prices are higher. Klaus Müller, President of the Federal Network Agency, said the move lays the foundation for greater flexibility in storage systems and marks an important step for bidirectional charging.
The draft also addresses use cases where EVs feed power back into the grid after charging at a different location, such as a workplace. If the annual feed-in at a charging point exceeds the electricity charged there, the surplus will be recorded as imported third-party electricity.
Provisions are included to ensure operators remain eligible for subsidies under Germany’s Renewable Energy Sources Act (EEG) and reduced levies under the Energy Financing Act (EnFG), even when stored electricity mixes grid and renewable power. Two approaches are outlined: a precise calculation method for larger PV systems and a simplified allocation for smaller solar installations.
The agency will present key points of the MiSpeL rules at a workshop on Oct. 1, where companies, grid operators, metering operators and industry associations will be invited to provide input as part of a consultation process.
Source: bundesnetzagentur.de
