A California solar panel manufacturer that received a half-billion dollar loan from the federal government has been unable to attract much interest from potential buyers to take over its operations.

Instead, Solyndra is looking at a piecemeal sale of its assets, with separate auctions for its machinery and equipment, real estate and intellectual property.

Solyndra LLC officials told a U.S. bankruptcy trustee Tuesday that no qualified bidders have come forward for the whole company.

Solyndra's chief restructuring officer says a handful of potential bidders are still conducting due diligence, but he would be surprised if one came forward with a reasonable offer to take over Solyndra.

Fremont, Calif.-based Solyndra was once touted by the Obama administration as a "green jobs" creator.