Renewable energy is SOWITEC's core business. Founded in 1993 by Frank Hummel, SOWITEC's main activity has been developing renewable energy applications. Over the years, wind and solar power has become the primary focal point. By 2007, SOWITEC has realized over 100 wind turbines in 30 wind farms across Germany. Constantly growing, the SOWITEC group employs a staff of over 200 members. These are based in Germany and abroad.