Continuing education in the technical college Bensheim, field Mechanical engineering
Study in the advanced technical college Rüsselsheim, field vehicle technology.
in 1987-1990 the first experiences with the life in community in the country
in 1990 cooperation in the Taller Ceramica de Jovenes descapacidados in Ciudad Sandino, Nicaragua, repair of the electric arrangement
Since 1991 Pueblo Ecologico Matavenero, development and removal of the water system, development of adapted technology (special barrows, cable railway, solar showering, solar arrangements, bioconstruction)
Continuing education in the social area (Co-Counseling, Soziokratie, living in community)