September 14, 2012—Thin-film solar cell and panel manufacturer Nanosolar Inc. (San Jose, Calif., U.S.A.) has announced another change of executive leadership. Chief executive officer Eugenia Corrales, who joined the company in May 2010, has left the company to pursue other ventures, according to a press release. Nanosolar has appointed Karl Steigele as president and COO. Steigele was previously an international management consultant to Fortune 500 firms including IBM, Intel, Hitachi, Sony and Siemens.

With the role of CEO closeted, Nanosolar board of directors chairman Guido Polko will be increasing his role in the company. Corrales had replaced CEO Geoff Tate, who retired after two years at the company.

"We welcome Karl to Nanosolar and look forward to Guido's continued leadership," said Erik Straser, partner at Mohr Davidow Ventures and a Nanosolar board member.

Nanosolar is expected to announce the completion of the largest photovoltaic power plant based on copper-indium-gallium-diselenide technology at the upcoming European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC).