Banking on a homegrown, high-tech solar cell system, GreenField Solar Corp. is positioned for a fast-paced growth. Founder Bernie Sater, a former NASA Glenn Researcher Center scientist, invented the solar cell technology behind the company's StarGen Concentrated PV system. This heavy-duty, innovative system captures the sun's rays to produce electricity and thermal energy for high use customers including utilities and other large, commercial companies. Founded in 2008, GreenField is the convergence of two earlier companies: PhotoVolt and Greenfield Steam and Electric. The company's two initial facilities were in North Ridgeville, Ohio, and at the NASA Glenn Research Center in Cleveland. It opened a new Oberlin headquarters and fabrication center in early 2010. The company had 20 employees in early 2010, but expected big gains through increased commercialization of its product.