Facts4Wind: Analysis of Wind Resources and Environmental Factors in Relation to Public Acceptance of Wind Energy Expansion

At a glance

• Facts4Wind investigates how the current and future expansion of wind energy in Germany (onshore and offshore) affects wind resources, weather and climate.
• The results are to be specifically tailored for public information and permitting processes, as well as for the general public.
• Fraunhofer IWES is the project coordinator. From a technical perspective, Fraunhofer IWES uses mesoscale models to investigate the large-scale effects of onshore and offshore wind energy expansion in Germany on weather and environmental parameters and analyzes wind resources and high-altitude wind potential, including their economic viability. Other focuses are model benchmarking and the derivation of recommendations for action.

The challenge

Significantly increased expansion targets for wind energy are leading to more public participation and permitting processes. For the climatic conditions in Germany, there is currently a lack of reliable, consistent analyses of the effects of wind farms in terms of

- temperature, humidity, precipitation,
- wind resources at higher altitudes,
- effects of technical concepts (low-induction rotors, direction of rotation).

The solution

The Facts4Wind research project combines measurement campaigns, high-resolution large eddy simulations (LES), and long-term mesoscale modeling to systematically investigate and clearly present environmental impacts and wind resources.

The added value

Facts4Wind compiles reliable, Germany-specific data on the environmental and resource impacts of wind farms, which can help objectify and accelerate permitting and public participation processes. For policymakers and public administration, the project aims to establish a foundation for evidence-based decisions regarding environmentally sustainable site designation and expansion planning. Additionally, it seeks to provide greater planning and investment certainty for the business sector, for example through realistic assessments of technical concepts such as low-induction rotors. The findings will be presented in a way that is easily understandable to the general public and are expected to lead to greater acceptance of wind energy in Germany.