Dr. William Acker will speak during the portable fuel cells session which extends from 9:00 a.m. to 11:30 a.m. (PST) on September 21, 2005.

Albany, N.Y., September 7, 2005 - Dr. William P. Acker, Chief Executive Officer of MTI MicroFuel Cells Inc. (MTI Micro), the developer of the award-winning MobionTM micro fuel cell technology and a subsidiary of Mechanical Technology Incorporated (NASDAQ:MKTY), is scheduled to present at the 2005 Portable Power Conference & Expo which will take place September 18-21, 2005 at the Palace Hotel in San Francisco, California.

Dr. Acker will speak during the portable fuel cells session which extends from 9:00 a.m. to 11:30 a.m. (PST) on September 21, 2005. His presentation will include an overview of MTI Micro's MobionTM technology, the Company's market entry strategy and micro fuel cell trends as a power solution to batteries for military and consumer portable applications.

Portable Power 2005 is a leading international event dedicated to addressing and educating the entire supply chain for wireless communications, mobile computing and electronic devices. For additional information on the 2005 Portable Power Conference & Expo, please visit http://www.portablepower2005.com.

About MTI MicroFuel Cells
MTI MicroFuel Cells Inc., a subsidiary of Mechanical Technology Incorporated, (NASDAQ: MKTY), is the developer of the award winning Mobion' direct methanol micro fuel cell technology. The Company has a world-class team of entrepreneurial business executives, researchers and scientists; a number of system prototypes demonstrating size reductions and performance improvements; significant related intellectual property; and has received government awards and developed strategic partnerships to help accelerate commercialization. More information is available at www.mtimicrofuelcells.com.