Catalytica Energy Systems Appoints Dominic Geraghty Senior Vice President of Corporate Development

Business Wire, April 10, 2002

Business Editors

MOUNTAIN VIEW, Calif.--(BUSINESS WIRE)--April 10, 2002

Catalytica Energy Systems, Inc. (Nasdaq:CESI) announced today that Dominic Geraghty has joined the Company as senior vice president, Corporate Development. In this newly created position, Geraghty will identify, cultivate, and execute strategic business opportunities in support of corporate growth.

Geraghty joins the Company with over 25 years of experience in the power industry, including thirteen years at the Electric Power Research Institute (EPRI).

"Dominic brings a wealth of experience and a proven track record in evaluating business development prospects and directing successful business ventures and M&A activities," stated Craig Kitchen, president and CEO of Catalytica Energy Systems, Inc. "His demonstrated leadership in a diverse range of strategic corporate initiatives, complemented by his extensive energy industry background, will be key to growing our business."

Prior to joining Catalytica Energy Systems, Geraghty was co-founder of Enerwise Global Technologies, and served as its senior vice president of Corporate Development. In this role, he developed the corporate business plan and oversaw various business development, marketing, and sales activities. During this time, he was also responsible for completing a strategic alliance and an acquisition, which enabled global expansion. Geraghty also founded grid2plug.com, an E-commerce company focused on developing premium power / "high-9s" solutions for the power generation industry. Previously, Geraghty held senior management positions with various other companies in the energy industry, including a three-year tenure as general partner of Utech, a venture capital fund focused on energy-related deals, and a 13-year tenure at the Electric Power Research Institute (EPRI) from 1977-1990, where he was responsible for corporate planning and research & development management. Geraghty holds B.E. and Ph.D. degrees in chemical engineering from University College in Dublin, Ireland, and an M.B.A. from the University of Santa Clara.

Catalytica Energy Systems designs, develops, and manufactures advanced products for more effective energy production. Its proprietary technologies include the use of catalysts to create solutions to ease the environmental impact of power generation. The Company is marketing its first product, Xonon(R) Cool Combustion, a breakthrough combustion technology that achieves ultra-low emissions levels for gas turbine power production. Xonon prevents the formation of pollution, particularly nitrogen oxides (NOx), a primary contributor to smog, through a proprietary catalytic combustion process. Additional technology development efforts include work on fuel processing for fuel cells, as well as adaptation of Xonon technology to micro-turbines, hybrid gas turbine fuel cells, and diesel applications. Find Catalytica Energy Systems on the Worldwide Web at www.CatalyticaEnergy.com.

This news release contains forward-looking statements regarding the growth prospects for Catalytica Energy Systems' business and the ability of Mr. Geraghty to enable corporate growth. Actual results may differ and such differences may be material from those anticipated in such forward-looking statements. These statements involve risks and uncertainties, including without limitation, the ability of Mr. Geraghty to translate management expertise to Catalytica Energy Systems' corporate development, and that results may differ from those stated and the other risks set forth in the Catalytica Energy Systems' Form 10-K for the year ending December 31, 2001, filed with the Securities and Exchange Commission. Catalytica Energy Systems undertakes no obligation to update publicly any forward-looking statements to reflect new information, events, or circumstances after the date of this release.

Note to Editors: Xonon and Xonon Cool Combustion are registered trademarks of Catalytica Energy Systems, Inc. Mountain View, CA, USA