It wasn’t just any factory. When it was completed at an estimated cost of $733 million, including proceeds from a $535 million U.S. loan guarantee, it covered 300,000 square feet, the equivalent of five football fields. It had robots that whistled Disney tunes, spa-like showers with liquid-crystal displays of the water temperature, and glass-walled conference rooms.

“The new building is like the Taj Mahal,” John Pierce, 54, a San Jose resident who worked as a facilities manager at Solyndra, said in an interview.

The building, designed to make far more solar panels than Solyndra got orders for, is now shuttered, and U.S. taxpayers may be stuck with it. Solyndra filed for bankruptcy protection on Sept. 6, leaving in its wake investigations by Congress and the Federal Bureau of Investigation and a Republican-fueled political embarrassment for the Obama administration, which issued the loan guarantee. About 1,100 workers lost their jobs.