Mr. Pronske has served as a member of the Board of Directors since 2001. He has also served as the President and Chief Executive Officer of Clean Energy Systems, Inc. since January 2003. Mr. Pronske joined CES in January 2001 as Vice President for Business Development. He is a mechanical engineer with more than thirty years experience in the power industry in North and South America and in Europe. 

Prior to his work at CES, Mr. Pronske served as the Vice President of Business Development, Latin America, for Tractebel, Brussels, Belgium. At Tractebel, he was instrumental in acquiring and developing power plants, gas distribution systems, and energy companies with an aggregate equity investment in excess of $2 billion and an installed capacity in excess of 6,000 MW. Prior to working for Tractebel, Mr. Pronske worked for the AES Corporation.

Mr. Pronske holds a Bachelor of Mechanical Engineering degree from the University of California, Davis and a Master of Business Administration degree from San Francisco State.