Chief Financial Officer W.G. Stover from the bankrupt solar energy company Solyndra refuses to answer questions as he appears before the House Energy Commitee's Oversight and Investigations Subcommittee on Sept. 23 2011. (AP Photo/J. Scott Applewhite)

Photo by: J. Scott Applewhite

Chief Financial Officer W.G. Stover from the bankrupt solar energy company Solyndra refuses to answer questions as he appears before the House Energy Commitee's Oversight and Investigations Subcommittee on Sept. 23 2011. (AP Photo/J. Scott Applewhite)