From an article in the Business Journal of Milwaukee:

Cardinal Glass Industries will receive a $500,000 loan to help finance an upgrade to the company’s photovoltaic glass production facility in Portage.

Wisconsin Gov. Jim Doyle announced the American Reinvestment and Recovery Act loan Tuesday at the opening of the Cardinal Solar Technologies facility in Mazomanie, a 180,000-square-foot plant that will grind, drill and temper two types of glass for use in photovoltaic solar panels. Another 80,000-square-foot section is planned as part of a second phase of construction.

At full capacity, the Mazomanie plant will produce 64 million square feet of tempered glass annually, Doyle said. The plant employs 54 workers but once it reaches full production, the plant has the potential to add an additional 60 to 70 employees.