Aachen expands wind energy – How the city advances its climate goals by 2026

Aachen in the wind: How the city is rethinking wind energy in 2026

Since 2019, the city of Aachen has been addressing the climate emergency and has set a goal to become climate-neutral by 2030. A key step toward this goal is the expansion of wind energy. In April 2026, decisive planning steps were taken in land use planning to designate wind energy areas and accelerate the expansion. However, behind these decisions lies a complex mix of political will, legal planning, and public debate.

Wind energy areas as an acceleration mechanism

Amendment No. 2 to the land use plan AACHEN*2030 provides for the designation of 12 wind energy areas across a total of 5 city districts. These areas – totaling approximately 324.5 hectares – are planned as so-called "acceleration areas" under § 249c of the German Building Code (BauGB). The goal is to simplify the approval process for wind turbines while simultaneously establishing the legal basis for the expansion of wind energy.

The planned areas will allow for the installation of up to 20 wind turbines (WEA), each with a capacity of 4.5 megawatts. This corresponds to an annual electricity production of 225 GWh – approximately 22% of Aachen’s electricity demand in 2024. The associated CO2 savings potential is around 100,000 tons per year, which can significantly advance the city's climate goals.

The areas are also intended for storage facilities, which are also considered privileged projects. This supports not only the expansion of wind energy but also the storage and distribution of renewable electricity.

Public participation and criticism from the population

As is typical for such controversial issues, the planning process was not without resistance. Public participation took place between May 15, 2023, and June 16, 2023, with approximately 90 citizens attending public hearings. In total, 172 statements were submitted by citizens and 37 by authorities.

Criticism from the population primarily focused on the precautionary distances (400 meters), the site selection criteria, and potential effects on the landscape, heritage protection, and the environment. For example, the citizen initiative "BI Horbach" in the district of Richterich called for the designation of areas along traffic axes or outside the city limits to minimize the impact on the urban landscape.

This criticism led to adjustments and withdrawals, such as with the areas SO W11–16. The city of Aachen emphasizes that it actively addressed the concerns of citizens during the statements and hearings and has incorporated some points into the planning.

Procedural delays and legal challenges

The planning process was marked by delays, partly due to legal changes and the clarification of planning and environmental protection aspects. The impact of the Einstein Telescope (ET) on potential wind energy areas was also discussed. In addition, the city had to ensure that the site selection criteria complied with applicable regulations and did not violate any protected zones.

The decision to proceed with the plan was made in April 2019, but public review was not possible until 2026. These delays show how complex such a planning process is in practice – especially in a city like Aachen, which is both culturally and industrially shaped.

Climate protection as a central driver

Wind energy is a central component of Aachen’s Integrated Climate Protection Concept (IKSK). With IKSK 2.0, adopted in 2024, Aachen has committed itself to becoming climate-neutral by 2030. The city is also part of the EU Mission "100 Climate-Neutral and Smart Cities by 2030," thereby embedding itself in a broader European climate protection context.

The environmental assessment of the wind energy areas found no significant negative effects on people and the environment, which supports the planning. Nevertheless, the debate about noise, shadow flicker, and landscape effects remains, particularly among citizen initiatives.

Conclusion: A step in the right direction – with open questions

By designating wind energy areas, Aachen has taken an important step toward achieving its climate goals. The city has consciously chosen a structured and transparent expansion of wind energy – with clear objectives and broad public participation.

Nevertheless, questions remain, particularly regarding the long-term acceptance of the turbines by the population, the impact on the landscape, and the implementation of climate protection goals. Whether the planned 20 wind turbines will actually be built in the coming years depends not least on political will, investors, and the acceptance in the affected districts.

Aachen, however, demonstrates with this decision that it is possible to reconcile climate protection with urban development – even if the path is not always easy.