Fuel Cell Companies listed in Canada

[Ed Monton]

Hydrogenics Corporation De-lists Stuart Energy Systems Corporation

MISSISSAUGA, ONTARIO, February 17, 2005 - Hydrogenics Corporation (NASDAQ: HYGS; TSX: HYG) announced today that it has completed its compulsory acquisition of the remaining shares of Stuart Energy Systems Corporation (TSX: HHO) and that Stuart Energy has now been de-listed from the Toronto Stock Exchange.

Hydrogenics acquired 93% of the outstanding shares of Stuart Energy pursuant to a take over bid which expired on January 20, 2005. With the completion of the compulsory acquisition Stuart Energy is now a wholly owned subsidiary of Hydrogenics.

About Hydrogenics

Hydrogenics Corporation (http://www.hydrogenics.com) is a leading global developer of clean energy solutions, advancing the Hydrogen Economy by commercializing hydrogen and fuel cell products. The company has a portfolio of products and capabilities serving the hydrogen and energy markets of today and tomorrow. Hydrogenics, based at 5985 McLaughlin Road, Mississauga, Ontario, Canada, has operations in North America, Europe and Asia.

About Stuart Energy

Stuart Energy Systems Corporation (http://www.stuartenergy.com) is the world's leading developer and supplier of integrated hydrogen infrastructure solutions based on water electrolysis. Stuart Energy integrates its proprietary hydrogen generation technology with products from corporate partners to serve existing and emerging markets for industrial, distributed power generation and transportation applications.

CAUTION REGARDING FORWARD-LOOKING STATEMENTS

This release contains forward-looking statements within the meaning of the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Law of 1995. These statements are based on management's current expectations and actual results may differ from these forward-looking statements due to numerous factors, including changes in the competitive environment adversely affecting the products, markets, revenues or margins of Hydrogenics' business. Readers should not place undue reliance on Hydrogenics' forward-looking statements. Investors are encouraged to review the section captioned "Risk Factors" in Hydrogenics' regulatory filings with the Canadian securities regulatory authorities and the United States Securities and Exchange Commission for a more complete discussion of factors that could affect Hydrogenics' future performance. Furthermore, the forward-looking statements contained herein are made as of the date of this release, and Hydrogenics undertakes no obligations to revise or update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release. The forward-looking statements contained in this release are expressly qualified by this.