From an article by Tom Content in the Milwaukee Journal Sentinel:Wisconsin's first solar panel factory has opened in the Menomonee River Valley, on the site of stockyards that contributed to the city's leadership in the meatpacking and processing industries more than 100 years ago.Later this year, solar panels will go up on the roof of the building that replaced the stockyards, and the panels will be made downstairs in Steve Ostrenga's factory.Privately held Helios USA started making robots this month, using an automated production line to build high-efficiency solar panels. The goal: to help put an emerging, 21st-century industry on the map in the state.That's what excited Patrick Shaw of Cudahy about working at the plant, he said during a recent tour of the W. Canal St. factory."I wanted...