ROCKVILLE, MD. — Argan Inc.’s wholly owned subsidiary, Gemma Power Systems — through its wholly-owned subsidiary Gemma Renewable Power LLC — has signed an approximately $51 million EPC contract with Bishop Hill Energy LLC, a wholly owned subsidiary of Invenergy Wind North America LLC, to design and build a 200 MW wind farm in Henry County, Ill. The Bishop Hill wind farm is expected to consist of as many as 134 General Electric wind turbines. Gemma Renewable Power will provide design and construction of roads, foundations, and electrical collection systems in addition to erecting towers, turbines, and blades. The project is anticipated to be completed in late 2011.