The most important reason for the faltering expansion of wind energy is that too few areas have been designated and secured in spatial planning. In addition, some German regions (Länder) have set distances between wind turbines and residential areas that cannot be justified in terms of protecting residents. The lack of standards in nature conservation and species protection leads to legal uncertainties. In general, the planning and approval procedures for wind turbines are error-prone and lengthy. Regions in which wind energy is used also benefit too little from the energy transition. This has an impact on local acceptance. There is also a need for change in the area of funding.
This English-language publication summarises a more comprehensive German-language statement on the expansion of onshore wind energy in Germany published in February 2022.