Company

Rhea J. Hamilton, Director

Rhea Hamilton has been a member of the EPS board of directors since December 2007. Ms. Hamilton is a Senior Investment Manager with SAM Private Equity AG, formerly part of Robeco Private Equity. Previously she was the Business Finance Manager for Shell Hydrogen B.V. where she was responsible for managing investments in funds and direct investments, several of which she was the acting shareholder representative. She was the Investor Relations Manager for Shell International Exploration and Production B.V. Prior to that she was an exploration geophysicist at Shell Canada Ltd.

She has published several scientific papers from her geophysical expedition in Antarctica, and holds a diploma from the Institute of Directors (IoD) in the United Kingdom. Ms. Hamilton’s post graduate education and background in private equity investment, portfolio company management and the earth sciences provides her with significant board directorship, international finance, operations management and financial reporting experience.

Ms. Hamilton earned an MBA from IESE Business School in Barcelona and a BS with honors in Geophysical Engineering from University of British Columbia.

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John S. Herrington, Director

John Herrington has been a member of the EPS board of directors since March 2010. A self-employed attorney/businessman, Mr. Herrington previously served as the United States Secretary of Energy, responsible for energy policy and an advocate for domestic energy development. During the Ronald Reagan administration he held positions of Assistant to the President for presidential personnel and Assistant Secretary of the Navy. Prior to his government career, Mr. Herrington was an attorney in California, specializing in corporate, real estate, tax and business law.

Mr. Herrington sits on the board of directors of Clean Energy Fuels Corp. He previously served as the chairman of the board of directors of Harcourt Brace Jovanovich, and on the board of directors of the John Wiley Publishing Company of New York, Mesa Petroleum, Pioneer Resources of Dallas, Advisory Council for Sedgwick James of New York, Inc., and the board of advisors of The Wilmer Eye Institute of John Hopkins University Medical Center.

He earned a JD and LLB from the University of California, Hastings College of Law and a BA in economics from Stanford University.

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Robert J. Metcalfe, Director

Robert Metcalfe has been a member of the EPS board of directors since March 2010. Mr. Metcalfe is Counsel for Metcalfe, Blainey & Burns LLP, one of Canada’s oldest full-service boutique law firms. Previously he was a senior partner at Lang Michener LLP, specializing in corporate and commercial law. He was President and CEO of Armadale Properties Limited and General Counsel to all the Armadale Group of Companies engaged in commercial real estate development, newspaper publishing, airport management and ownership, financial services and auto dealerships.

Mr. Metcalfe is chairman of the board of directors of Medoro Resources Ltd., a natural resource company in the gold industry. He serves as a board member and audit committee chairman for Alange Energy Corporation, a natural resource company in the oil and gas industry; and Xinergy Ltd., in the mining industry. He is also a board and audit committee member of water conservation company, EnviroTower Inc., Mr. Metcalfe served as director of Canada Lands Company Limited and director and non-executive chairman of the CN Tower.

He earned an LLB from Osgoode Hall Law School, Ontario and a BA from Dalhousie University, Nova Scotia.

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Charlie R. Oliver, Jr., Director

Charlie Oliver has been a member of the EPS board of directors since April 2008. Mr. Oliver is currently non-executive chairman of Falcon Asset Management Group. Previously he was Executive Group President, Chief Business Development Officer and Chief Operating Officer for Washington Group International. He spent 30 years with Fluor Corporation, where he most recently served as Group President responsible for Fluor’s global sales organization, corporate strategic planning, project finance, and international operations.

He is a Trustee Emeritus with the University of Montana Foundation, and he serves as Chairman of the Board of Advisors with the Davidson Honors College at the University of Montana. He is a member of the American Petroleum Institute, the American Petroleum Institute 25 Year Club and the American Society of Civil Engineers.

Mr. Oliver is a founding member of Cal-Poly-Pomona University Educational Trust. He was awarded an honorary Doctor of Science degree and was named Corporate Citizen of the Decade by Cal-Poly. He earned a BSCE from Auburn University and is a graduate of Stanford’s S.E.P. Program.

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Steven E. Parry, Lead Independent Director

Steven Parry has been a member of the EPS board of directors since November 2007 and the lead independent director since March 2010. Mr. Parry currently serves as Managing Director of NGEN Partners, LLC, an investment and venture capital management company specializing in clean tech. Prior, he served as Vice President of Business Development and General Manager, Innovation at Billiton plc and BHP Billiton. As a principal in BHP Billiton’s venture capital group, he was part of a team responsible for creating its first technology venture fund.

Mr. Parry is on the board of directors at EnviroTower Inc., Fallbrook Technologies, Inc., Powerspan Corp., Rayne Corporation, SolFocus, Inc., and Tioga Energy, Inc. He is a director and Treasurer of the Nuclear Age Peace Foundation.

He was awarded the Canada 125 Medal, conferred by Canada’s Governor General, for his work as Co-Founder and Chairman of Save Our North, a group promoting the interests of northern resource communities. Mr. Parry earned an MS from the University of Western Ontario and a BS from Queen’s University, Canada.

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Jay B. Zoellner, Chairman, Chief Executive Officer and President

Jay Zoellner has served as the Chief Executive Officer and on the EPS board of directors since 2002, and as President since 2007. Mr. Zoellner has more than 27 years of leadership experience in the energy business. Before founding EPS, he was Senior Director for Enron Facility Services and Enron Energy Services. Prior to that, he served as Vice President of The Bentley Company. In 1985, Mr. Zoellner joined ABB, Inc., a global energy and transportation company, as a consultant to multiple nuclear utilities in the United States and Britain.

Mr. Zoellner has also served in the following positions in subsidiaries of EPS: President of NEC-EPS Holding, LLC, a position he has held since 2008; Managing Member of EPS, LLC, a position he held from its inception in 2002 to 2004; and President of DairyGen, LLC, a position he has held since 2006.

He began his career in 1980 as an officer in the U.S. Navy nuclear submarine force, and earned a BS in Physics from the University of Idaho.