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About the company
8952 Schlieren, Switzerland
Prof. Dr. Hanjürg Leibundgut & Balz Halter
Affordable and clean energy
Sustainable cities and communities
Technology & Services for Economic and Emission-Free Architecture and Building Operation.
CO2-free building operation at no additional charge. Free architectural design without compromises. Consciously simple. This is what we stand for. Our holistic system BS2 Zeleganz consists not only of highly efficient components, but also of services for individually designed energy systems for new and refurbished buildings.