Five Vestas wind turbines with a total rated capacity of 31 MW
New transformer station successfully connected for the first time on April 11, 2025
Oberkirch, Germany, 05/08/2025 – The Höringhausen wind farm, a joint project between Koehler Renewable Energy and Qair, is starting its next stage of construction after a brief winter break. Among other things, the project is raising the bar when it comes to teamwork and sustainable power generation and delivery.
A solid partnership and a shared passion for green progress
From the get-go, the project has reflected close cooperation between equals, with trust characterizing every step of the way. Both companies are bringing their full expertise, capacity for innovation, and passion for renewable energies to the table. “Our teamwork with Qair has been consistently characterized by mutual respect, openness, and an absolute determination to make an important contribution to decarbonizing the power sector together,” underscores Nicolas Christoph, the head of the Wind Power, Solar, Hydro & Business Development Division at Koehler Renewable Energy. Qair Project Manager Stefan Ziegler adds: “This project shows how collaborative action and a shared vision can drive the energy transition forward in concrete ways. Needless to say, we’re tremendously proud of making this flagship project a reality together with Koehler Renewable Energy.”
Technical highlights and project progress
The Höringhausen wind farm project consists of two subprojects: Four of the turbines belong to the “Langer Wald” wind farm, while another one is part of the “Waldeck” project area. The five state-of-theart Vestas V162 wind turbines will have a total ratedcapacity of 31 megawatts. More specifically, each one has a rated capacity of 6.2 MW, a hub height of 166 meters, and a tip height of 247 meters. The foundations and the first 83 meters of the concrete towers were already erected last year. And work is going full speed ahead once again since the beginning of April: The first tower sections and rotor blades have been successfully delivered, and construction continues to march apace. All five wind turbines are expected to be completed by the end of June 2025 and scheduled to be commissioned and go online at the start of August.
Another important milestone was reached on April 11, 2025: The 80 MVA transformer at the new transformer station has successfully undergone its initial connection, which marks an important step in the process of connecting the wind farm to the grid in the future.
Shaping the future together with excitement around the energy transition
The Höringhausen project is much more than just erecting a few wind turbines: It stands for real change, incredible innovation, and the firm belief that the energy transition can only be achieved if we all pull together. Qair and Koehler Renewable Energy are bundling together their respective strengths in order to make a sustainable contribution to society, the environment, and the region. Accordingly, the two partners are betting on transparency, dialogue, and a long-term focus – all while showing how working together as equal stakeholders creates real excitement about green energy.
About Qair Deutschland GmbH
Qair Deutschland is an independent project developer, operator, and owner of renewable energy plants and facilities. As part of the European Qair Group with headquarters in Paris, the company is engaged in the development, financing, construction, and operation of wind and solar farms and battery energy storage facilities in Germany throughout their entire lifecycle – from planning through removal. With sites in Munich and Leipzig, Qair Deutschland is committed to sustainable energy generation and delivery, and accordingly maintains cooperative partnerships with communities, landowners, and residents.
For more information, please visit: https://deutschland.qair.energy
About Koehler Renewable Energy
Koehler Renewable Energy has been a subsidiary of the Koehler Group since 2012, with its headquarters in Oberkirch in Southwest Germany. The company is helping to shape the energy transition both in Germany and abroad in a sustainable manner. In collaboration with business partners, numerous projects in the fields of biomass cogeneration, onshore wind power, photovoltaics, and hydropower have already been implemented. There is also a focus on new energy technologies. The experts at Koehler Renewable Energy manage all stages of the value chain: acquisition, planning, development, and smooth long-term operation of installations.
Find more information at: https://www.koehlerrenewableenergy.com
About the Koehler Group
The Koehler Group was founded in 1807 and has been family-run from that moment to the present day. The group’s core business activity lies in the development and production of high-quality specialty paper. This includes—among others—thermal paper, playing card board, beverage coasters, fine paper, carbonless paper, recycled paper, decor paper, wood pulp board, sublimation paper, and also innovative specialty paper for the packaging industry. In Germany, the Koehler Group employs around 2,500 people across five production sites, with three additional sites in the USA. The group operates internationally, with an export share of around 70% in 2023, and brings in an annual turnover of around 1.1 billion euros.
As an energy-intensive company, Koehler invests in renewable energy projects such as wind energy, hydropower, photovoltaics, and biomass with its Koehler Renewable Energy business unit. The Koehler Group has set a goal of producing more energy from renewable sources by 2030 than is required for its paper production operations.
With its Koehler Innovative Solutions division, the Koehler Group is collaborating with start-ups to promote innovations in the core business segments “paper” and “renewable energy”.
Find more information at: https://www.koehler.com
Your contact person:
Alexander M. Stöckle
Koehler Group press contact
Phone: +49 7802 81-4749
E-mail: [email protected]
