Site factors and analyses for wind turbines - the key to efficiency

The location is one of the most decisive factors for the efficiency and profitability of a wind turbine. In this article, you will learn which site characteristics influence the performance, how a site analysis is carried out and which ecological and economic considerations play a role in the process.

Important location factors for wind turbines

• Wind speed: The average wind speed is the most important factor for energy generation. High and constant wind speeds maximise the energy yield. Locations with an average wind speed of at least 6 m/s are considered ideal.
• Height and topography: Open and elevated locations that are free of obstacles such as trees, buildings or hills are particularly suitable. They generate less turbulence and enable a uniform air flow, which increases the efficiency of the system.
• Ground conditions: A stable base is necessary to securely anchor the foundations of the wind turbine. The ground should be suitable both for the construction phase and for long-term stability.
• Infrastructure: A good connection to the power grid reduces energy losses and lowers costs. Transport routes for delivering components and carrying out maintenance work are also very important.
• Ecological and social factors: The impact on the local environment and acceptance by the population play an important role. A site that protects flora and fauna and is supported by the community is more sustainable in the long term.

Carrying out a location analysis

A thorough location analysis includes:

• Measurement of wind speed: Wind speeds are recorded over a longer period of time using wind measurement masts or LIDAR systems in order to calculate the energy potential of the site.
• Ecological studies: These assess possible impacts on the local flora and fauna. The protection of birds and bats is particularly important.
• Social surveys: Surveys and information events can be organised to ensure acceptance in the community.

Ecological impacts and protective measures

Wind turbines can have a negative impact on local wildlife, especially on:

• Birds and bats that may be endangered by rotor blades.
• Flora and fauna, due to soil sealing and construction work.

Protective measures such as adjusting operating times or using site-specific technologies (e.g. bird protection systems) can minimise these effects. In many countries, environmental assessments are mandatory prior to installation in order to minimise negative impacts.

Economic factors in the choice of location

The choice of location also has a significant economic impact:

• Installation and operating costs: Locations with good wind availability and short distances to the power grid are often more cost-effective.
• Support programmes and subsidies: Many countries offer financial incentives to reduce investment costs and promote the expansion of wind energy.

An economically optimised location combines high energy yield with low operating costs and short transport routes.

Why a thorough location analysis is important?

• Maximum efficiency: An optimal location ensures a high energy yield.
• Environmental friendliness: Careful analysis protects the environment and minimises negative effects.
• Economic efficiency: Well-chosen locations reduce costs and make wind energy economically attractive.

Find out how location factors and analyses have a decisive influence on the performance of wind turbines!