Umweltkontor Renewable Energy AG. The Group's principal activities are the development, realization and the administration of projects that produce electricity by means of renewable energy sources. Its focus is on wind-power parks. The Group also is engaged in hydropower, bio mass, low-energy construction, solar-technology, combined heat and power and urban development projects commissioned by communities. Wind energy accounted for 85% of 2002 revenues; solar energy, 11%; bio mass, 3% and water energy, 1%.