DuPont, Yingli Green Energy in $100 million solar energy pact

US chemical giant E.I. DuPont de Nemours (DuPont) and the Chinese subsidiary of Yingli Green Energy Holding Co. Ltd. yesterday agreed on a $100-million deal that extends their partnership in solar-energy.

Following the January 2011 research, development and extension collaboration between DuPont Photovoltaic Solutions and Yingli, solar-products maker Yingli will purchase photovoltaic materials worth $100 million from DuPont.

Yingli will buy DuPont's 'Solamet photovoltaic metallisation pastes for solar modules and protective backsheet made with Dupont's Tedlar polyvinyl fluoride film.

The agreement is designed to extend DuPont and Yingli's commercial relationships and material supply availability.

Earlier this month, the Wilmington, Delaware- based company reached a similar deal with Suntech Power Holdings, the world's largest solar panel maker.

''This agreement expands a current commercial relationship between DuPont and Yingli into a more strategic relationship with long-term benefit to both companies, and to end users of solar energy,'' said David Miller, president, DuPont Electronics & Communications.