Peter Lynch, a New York-based solar energy analyst, told ABC News it took only a cursory glance through Solyndra's prospectus to see there was a problem with their numbers.
"It's very difficult to perceive a company with a model that says, well, I can build something for six dollars and sell it for three dollars," Lynch said. "Those numbers don't generally work. You don't want to lose three dollars for every unit you make."
In 2008, Solyndra, then just three years old, pushed ahead with its application for government backing to build a new plant to produce its unique solar panels. An outside rating agency, Fitch, gave Solyndra a B+ credit rating that August. Two months earlier, in June 2008, Dun & Bradstreet issued a credit appraisal of the company. Its assessment: "Fair."
Those are not top-of-the-line scores, Fitch Ratings spokeswoman Cindy Stoller told the Center for Public Integrity's iWatch News, which has been investigating the deal in partnership with ABC News since March. She could not discuss the Solyndra review specifically, but said of a B+ rating: "It's a non-investment grade rating." She provided a company ratings definition, showing that B+ falls between a "highly speculative" B and "speculative" BB.
Asked about those ratings, and how significantly the department viewed the risk, Energy officials said Monday the department conducted "extensive due diligence" on the application, which included consideration of the Fitch rating.
"We believed the rating, which is used to inform our analysis of potential risks associated with the loan, was appropriate for the size, scale and innovative nature of the project and was consistent with the ratings of other innovative start-up companies," said Damien LaVera, an Energy Department spokesman.
"The Department conducted exhaustive reviews of Solyndra's technology and business model prior to approving their loan guarantee application," LaVera said. "Sophisticated, professional private investors, who put more than $1 billion of their own money behind Solyndra, came to the same conclusion as the Department: that Solyndra was an extremely promising company with innovative technology and a very good investment."