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Material innovations make wind power more efficient
Reinventing the wheel
One thing is clear: Wind power is one of the most sustainable technologies in power generation and is experiencing enormous growth rates worldwide for good reasons. But it is equally clear that it is still a long way off achieving the efficiency of conventional energy sources. Covestro helps plant operators to catch up with the economic efficiency of conventional energies and thus make even better use of the power of the wind for the benefit of society as a whole - with innovative materials that push the limits of what is possible in the various components of a wind turbine.
"Theoretically, the power of the wind could cover today’s global energy demand."
Source: Wikipedia

Quicker manufacture meets longer life

Polyurethane composite materials in plant construction

The wind energy capacity installed worldwide today is more than 70 times higher than it was 20 years ago. Nevertheless, the full potential of the unique resource that is wind is far from being exhausted. To come closer to achieving this goal, wind turbines will in future have to convince not only environmentally but also economically. Covestro has developed a special polyurethane resin for this purpose, which is used in conjunction with glass fiber fabrics to create new composite materials. They open up new opportunities for manufacturers and plant operators in terms of efficiency and promote the further expansion of wind energy.

For example: Compared to conventional epoxy resins, infusion resin systems made of polyurethane have improved flow and curing properties. This shortens the production cycles of wind rotor blades and results in lower investment costs for plant owners - a decisive prerequisite for long-term decreases in energy prices, from which society as a whole will benefit. Another advantage is that in addition to faster production, the polyurethane components are characterized by very low fatigue. This ensures smooth operation over the long term.

Polyurethane convinces in practice
Cooperation with SAERTEX and HÜBERS
Covestro has demonstrated that polyurethane (PU) can play an increasingly important role in the future of wind energy thanks to a successful cooperation with its partners SAERTEX and HÜBERS. At the renowned German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR), a 45-meter-long spar cap was created with the aid of our PU infusion resin. Learn more about this groundbreaking project in our video!
Certification for the Chinese market

The production of more efficient rotor blades based on a PU glass fiber composite has now taken a decisive step forward. Recently, this innovative Covestro technology was approved for the Chinese market by achieving DNV GL certification. DNV GL is an internationally recognized industry standard for the safety, reliability and performance of wind turbines.

China is one of the most important drivers of the global development of wind power technologies: by 2020, the government wants to increase the capacity for generating wind power to 210 gigawatts. Today, China already has the highest capacity for wind power generation in the world. In 2016, 43 percent of all new plants were built in China. Covestro's PU technology certification puts Covestro in an excellent position to help shape the wind power boom in China.

More information

Baydur® for fast production and better performance

Press release on the next generation of wind turbines

Press release on DNV GL certification

"Wind power is a core element of Covestro’s sustainability concept. Various products and their advantages therefore are combined in Covestro’s wind power portfolio."
Kim Klausen, global coordinator of Covestro’s wind power activities

One less layer for greater efficiency

Corrosion protection with Pasquick™
Wind Power

The profitability of a wind power turbine is determined to a great extent by the maintenance it requires. One critical aspect in this connection is the corrosion protection of the enormous steel towers that bear the rotors. Covestro offers a new outlook to wind farm owners and corrosion protection service providers. What motivates us most in this field is a simple thought: The best kind of maintenance is none at all.

Pasquick™ is the name of our revolutionary polyaspartic coating technology, which fulfills all prerequisites for the long-term, maintenance-free operation of wind turbines. One special plus is the highly efficient application of coatings incorporating Pasquick™, because it provides the same high-level protection as conventional multi-coat PU systems, but with one less coat.

  • Fewer coats means less work. The savings can potentially add up to as much as 5 to 10 percent for an entire coating process. That provides relief to plant operators and makes Pasquick™ particularly interesting for public infrastructure projects with tight budgets.

  • As a worldwide leading supplier of polymer solutions in the chemical industry, Covestro offers a tried and tested solution. In over 15 years of practical application, the technology has demonstrated that its performance is on par with conventional, multi-coat systems. That is particularly important for offshore wind farms, which must withstand extreme winds and continuous exposure to salt water.

  • Our polyaspartic corrosion protection fulfills all the requirements defined in the relevant standard ISO 12944. Pasquick™ is a milestone on the way to new industrial standards that will ensure greater efficiency in future coating projects.

More information

Case Study: Innovative coating technology for wind energy towers

The steel towers supporting modern wind turbines can be up to 120 meters tall. Effective corrosion protection for these giants is a must.

Thinking outside the box – together

How Covestro works

Advancing wind power around the globe is a task that affects us all. It can only be mastered if diverse stakeholders in society join forces to champion it. Covestro collaborates closely with industrial partners and research institutions worldwide to pave the way for technological innovations. Our aim is to question outdated processes and explore new horizons together with our partners.

Our most important projects
  • In the area of polyurethane-based rotor blades, Covestro works closely with process technology specialist HÜBERS, glass fiber manufacturer SAERTEX and Chongqing Polycomp International Corp. Projects are also in the planning with leading rotor blade developer WINDnovation Engineering Solutions in Berlin.

  • Partners for the actual fabrication and testing of components include the German Aerospace Center (DLR) and the FRP Research Institute in Shanghai.

  • For our Pasquick™ corrosion protection technology, we collaborate with coatings manufacturer Hempel and other companies.

  • Our researchers attend congresses and panel events to maintain an active exchange with their international colleagues, such as the China Summit Forum 2016 for International Wind Power Composite Materials in Zhejiang.

A hot spot for wind power innovations

All wind energy activities are coordinated by our Center of Excellence for Wind Power in Otterup, Denmark. Denmark was not chosen at random to be the site of this high-tech research center: The Scandinavian country for decades has been a pioneer in the cost-efficient development of wind energy, making it the right place for an innovative force on the international wind energy scene like Covestro.

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Wind power is just one of the areas in which Covestro is pushing the boundaries of possibility. Follow the links and discover more about our commitment to a brighter world!

Covestro materials open new horizons – in the air and on the ground.

Polycarbonates from Covestro take the design and efficiency of motor vehicles to a whole new level.
Covestro is transforming the climate killer CO2 into a useful raw material.
An overview of all highlight stories.