Calpine, which is engaged in the generation and sale of electricity, has appointed Kenneth Graves as interim corporate controller and principal accounting officer.

Mr Graves will succeed Stephen Hodkinson, who served as the company’s interim corporate controller and principal accounting officer. Mr Hodkinson, whose services were provided pursuant to an agreement between the company and AP Services, has returned to his responsibilities at AP Services.

Mr Graves has served as the company’s vice president of SEC reporting and technical accounting since March 2007. Prior to joining Calpine, Mr Graves worked as an inspections leader at the Public Company Accounting Oversight Board from September 2004 to February 2007.

Zamir Rauf, interim CFO of Calpine, said: Ken’s extensive experience in public accounting, coupled with his responsibilities as vice president of SEC reporting and technical accounting makes him particularly well-suited for his new expanded role.