Success of Wind Power Depends on Durability of Turbines Protected by DuPont Innovations


DuPont(TM) Nomex® and Voltatex® Help Extend Equipment Life Vital to Practical Development of Wind Power

WILMINGTON, Del., April 15 / - Wind provided more electricity than several other alternative energy sources in 2007 - approximately 1 percent of the global supply. By 2020, experts predict that wind will generate about 12 percent of world electricity needs, but the reliability of generating equipment is essential to the success of the rapidly growing wind power industry.

DuPont (NYSE:DD) is providing key solutions to the wind industry. DuPont(TM) Voltatex® resin, a coating originally developed nearly 60 years ago to protect electrical systems in armored military vehicles, insulates key components of wind generators from damaging heat, extending their life. In certain high-heat situations, Voltatex® is used in combination with DuPont(TM) Nomex® paper and pressboard for additional thermal protection.

As vast arrays of wind turbines, popularly known as "windmills," appear around the world, keeping them running reliably for years - and even decades - is expected to become a huge issue. With some turbines perched atop 400- foot towers, many in remote terrain or far at sea, durability and reliability of the units will be paramount concerns. Future wind power installations, or "wind farms," could contain hundreds of power generating towers.

"One of the best ways to protect these turbines and minimize maintenance is to encapsulate the key components of the generator that protect them from the extreme heat inherent in the generation of electricity," said Arthur Boxman, global business manager for DuPont electrical insulation systems. "Our products were designed specifically to contribute to the sustainability of the wind industry. It is worth noting that up to 25 percent of their content consists of renewable materials."

The newest version of Voltatex® is solvent free, eliminating environmental emissions associated with heat curing. The new material is cured with ultraviolet light.

"Like other natural resources, sustained, dependable wind isn't always found in the most convenient places," Boxman said. "So, as electricity producers go where the wind is, it's gratifying that we are able to adapt an existing, proven DuPont technology to help make this truly inexhaustible power source a practical reality."

DuPont - one of the first companies to publicly establish environmental goals 18 years ago - has broadened its sustainability commitments beyond internal footprint reduction to include market-driven targets for both revenue and research and development investment. The goals are tied directly to business growth, specifically to the development of safer and environmentally improved new products for key global markets, such as wind power.

DuPont is a science company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture, nutrition, electronics, communications, safety and protection, home and construction, transportation and apparel.

First Call Analyst: Carl Lukach
FCMN Contact: marie.l.beletti-2@usa.dupont.com

Source: DuPont

CONTACT: Rick Straitman of DuPont, +1-302-999-5226, +1-302-540-7487
(mobile), richard.a.straitman@usa.dupont.com

Web site: http://dupont.com/

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