The article reports:
The U.S. Department of Energy awarded Abound Solar a $400 million loan guarantee in December 2010, funds that the then-three-year-old startup said it would use to compete with solar panel industry leader First Solar.
The company spent $535 million in loans guaranteed by the federal government before it failed. The article goes on to explain that Abound Solar was technically behind its competitors in the solar industry. Subsidizing inferior technology does not improve its quality, and it interferes with the ability of the free market to let the best technology prevail.
The best stimulus program would have been to give all taxpayers half of their income tax back! That would have stimulated the economy.