BUFFALO, N.Y. -- Federal prosecutors say top executives at LPCiminelli went to great lengths to ensure they would win the lucrative contract to build a factory for SolarCity at Riverbend.

Just how lucrative?

State officials refuse to say how much the company is being paid. But Investigative Post has calculated, based on interviews and public records, that LPCiminelli’s fee for the project works out to between $20 million and $22 million.

Read the complete story here at InvestigativePost.org and watch the video above for details.