No additional technological breakthroughs are necessary in order for HydroGen to deliver full-scale commercial demonstration plants during 2007

CLEVELAND--HydroGen Corporation (OTCBB: HYDG), a manufacturer of multi-megawatt air-cooled phosphoric acid fuel cell (PAFC) systems, today announced the completion of its 2.5-kilowatt PAFC test facility and successful operation of a 2.5-kilowatt fuel cell stack at full-rated capacity. This achievement, reached in less than one week after the commissioning of the test facility, replicates the technology originally developed by Westinghouse Corporation and the Department of Energy (DOE) at a cost of approximately $150 million, and which is now being brought to market by HydroGen.

“The completion of this test facility and operation of this fuel cell stack represent two key operational milestones in the commercialization of our PAFC technology,” said Dr. Leo Blomen, HydroGen Corporation’s Chairman and CEO. “This demonstration supports both our ongoing manufacturing and plant construction efforts and we are pleased with the operation and performance results.”

The recently commissioned, pressurized test facility duplicates the operating conditions and control methods of the company’s full-scale, 400-kilowatt demonstration and test plants currently under construction, as well as planned multi-megawatt systems based on standard 2 megawatt Power Islands. Reaching this key milestone demonstrates that no additional technological breakthroughs are necessary in order for HydroGen to deliver full-scale commercial demonstration plants during 2007.

HydroGen targets its air-cooled PAFC systems toward applications where under-utilized hydrogen is available to quickly become cost-competitive with grid-supplied electricity. The Company expects to reach one of its next significant milestones, the installation and operation of a 400-kW full-scale commercial demonstration power plant at ASHTA Chemicals Inc's chlor-alkali manufacturing plant in Ashtabula, Ohio, during 2007. To support this project, HydroGen is utilizing a $1,250,000 award that the State of Ohio Department of Development previously provided to the Company.

Plant Tour Webcast:

On December 12th, management recapped the corporate highlights for 2006 and discussed its strategies for the coming year. To listen to a replay of this webcast, please go to www.hydrogenllc.com to register, download and install any necessary software. The replay of the event will be available until December 31, 2006.

For those wishing to access the replay by telephone, please dial 719-457-0820 or 888-203-1112 (Replay Passcode: 4011351); the replay will be available from 5:00 PM ET, December 12th through 11:59 PM ET Tuesday, December 19th.

About HydroGen Corporation

HydroGen Corporation is a manufacturer of multi-megawatt fuel cell systems utilizing its proprietary 400-kilowatt phosphoric acid fuel cell (PAFC) technology. Utilizing fuel cell technology originally developed by Westinghouse Corporation, HydroGen Corporation offers a multi-megawatt, zero-emission power generation product that supports the growth of industrial distributed energy. The company targets market applications where hydrogen is currently available and other drivers favoring the adoption of fuel cells are present.