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In Bavaria and Baden-Württemberg, the roof ridge is considered the so-called zero point when the mast is guided through the roof. Thus, with a roof height of 10m, a 25m high ANTARIS small wind turbine would be procedure-free.

In Baden-Württemberg, small wind turbines must generally be subject to a building permit , especially if the turbine exceeds a height of 15 meters or the output is more than 1 kW. In some cases, smaller installations may also be subject to simplified permitting procedures . In addition, environmental and nature conservation assessments are required if the wind turbine is erected in a nature reserve or near flora-fauna-habitat areas (FFH).

In Bavaria, a small wind turbine up to a total height of 15m (repeller above) is procedure-free.

In Bavaria and BW, the roof ridge is considered a so-called zero point when the mast is routed through the roof. Thus, with a roof height of 10m, a 25m high ANTARIS small wind turbine would be procedure-free.

In addition, a building permit is required, and nature conservation authorities play a central role in assessing environmental impact. In addition, there are additional regulations in some regions that restrict or complicate the installation of wind turbines, especially in mountainous areas and nature reserves.

In North Rhine-Westphalia, wind turbines with a height of more than 10 meters must also receive a building permit from the responsible building authority. The immission control test is particularly important here in order to check the effects of noise and shadow impact. Nature conservation audits are often necessary in NRW, especially if the wind turbine is to be installed in a nature park or protected area.

In Hesse, a building permit is usually required for small wind turbines. Depending on the region, different requirements must be taken into account with regard to noise measurement and shadow impact . In more rural areas, permitting practices tend to be less stringent, but environmental assessments must also be provided if the wind turbine is installed in a sensitive area.

In Lower Saxony, a small wind turbine up to a total height of 15m (repeller above) is procedure-free.

The same requirements apply here as in many other federal states, but the approval practice for wind turbines is often less restrictive here, as the state offers great potential for wind power use.

Small wind turbines that are less than 20 meters high can often obtain a simplified building permit . However, if the wind turbine is erected in a nature reserve or near agricultural land, environmental and nature conservation assessments are necessary.

In Saxony, all wind turbines that reach a height of more than 10 meters must apply for a building permit. In addition, an immission control test is required in many cases, especially in urban areas. There are special regulations for the use of wind in nature reserves and in mountainous areas.

Brandenburg has very generous regulations for the use of wind power in many rural regions. A building permit is required here, but there are many areas where additional nature conservation assessments are not required due to lower potential for conflict. However, strict approval processes are required in nature reserves.

In Mecklenburg-Western Pomerania, wind turbines that exceed a certain size must also be approved. Approval is granted by the building supervisory authority, and expert opinions on noise, shadows and nature conservation aspects must be submitted. In areas of special nature conservation value, additional requirements must be observed.

In the big cities such as Berlin and Hamburg, the permit requirements tend to be stricter. Often, both immission control reports and bird protection reports are required. Small wind turbines in urban areas must meet the requirements for sound insulation and visual protection. In urban environments, they are less common, but still possible if the legal requirements are met.

In Schleswig-Holstein, a small wind turbine up to a total height of 15m (repeller above) is procedure-free.

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