New energy technologies such as MHD power generation and fuel cells, energy-efficient technologies, energy technology policy and science and technology policy.

1978~1980 Section Head, Agency for Defense Development
1980~1991 Head, Electric Energy Research Division;
Director, Energy Conservation Technology Center, Korea Institute of Energy and Resources
1991~1997 Vice President, Senior Research Scientist, Korea Institute of Energy Research
1997~1999 President, Korea Institute of Energy Research
2000~2001 Senior Research Fellow, Korea Institute of
Energy Research
2001~ President, Korea Institute of Science and
Technology Evaluation and Planning(KISTEP)
1984~1986 Research Professor, Korea Advanced Institute of
Science and Technology
1988~1990 Member, Fuel Cell Committee, World Energy
Council
1987~1992 National Program Director, Fuel Cell Program,
Ministry of Science and Technology
1996~1998 Vice President, Korea Institute of Power
Electronics
1998~1999 Vice President, Korea Society of Energy
Engineering
1999~2001 Board member, Korean Federation of Science and
Technology Societies
2001~ Member, Steering Committee of the President's
National Science and Technology Council

1987 National Service Medal, Suckryujang, Korean Government
1999 Recognition of Outstanding Accomplishments as an Alumnus, Colorado State University, USA
1999 Distinguished Service Award, Korea Institute of Illuminating and Electrical Installation Engineers