http://www.ecofriendnews.com/Latest environmental technology, recycling and renewable energy newsenEco Friend News PortalEco Friend News Portalhttp://www.ecofriendnews.com/environmental_article9226.htmlFri, 26 Jun 2009 00:00:00 GMTPolycrystalline silicon is the key component and essential raw material used to produce 90 percent of the photovoltaic (PV) solar cells currently being manufactured. The Toledo and Northwest Ohio area's involvement in solar energy production took another major step forward with the announcement of plans to develop North America's most advanced polycrystalline silicon (c-Si) production facility