A permit from the grid operator is not necessary as long as the power of the wind turbine is less than 800 W.
As the construction of a wind turbine constitutes a structural modification, you should in any case enquire with your municipality as to whether a building permit is necessary, especially if it is a free-standing turbine. For freestanding installations, you should also find out beforehand whether your desired installation site lies on building land or, in some circumstances, in a green zone. In these cases, a permit from the Ministry of the Environment is mandatory.
In addition, it is important to ensure that the wind turbine does not exceed the maximum permissible construction height prescribed by the municipality, insofar as no exceptions are provided for technical devices.
