Most recently, Mr Willis was with the restructuring practice of Alvarez and Marsal, a global professional services firm, where he served clients in advisory and interim management capacities overseeing the development and implementation of initiatives to improve operational and financial performance.
Prior to his restructuring practice, Mr Willis held positions with The Williams Companies and with Ernst & Young.
John Matheson, president and CEO of Global Power, said: With our executive group now complete, we look forward to achieving our goals coming out of our successful reorganization while continuing our focus on running the business and servicing our customers.