Owners of balcony power plants are currently obliged to register their system twice: with their network operator and at the Federal Network Agency in the market data register. Please note: Failure to register a mini solar system in the Market Data Register constitutes an administrative offence that can be can be punished with a fine, even if in practice this It's rare, but registration is still a good idea.
For owners of balcony power plants, registration is in the market master data register is important to record the solar energy generated to be able to bill correctly, especially when excess electricity to be fed into the public grid. Registration with the Network operator has the advantage that it automatically checks whether a Replacement of the electricity meter is necessary.

The funding program:

The program supports the installation of small-scale renewable energy systems on residential balconies, primarily solar panels or wind turbines. These systems are crucial for promoting sustainability in urban areas by reducing dependence on fossil fuels and encouraging residents to use renewable energy.