aspern Die Seestadt Wiens - nachhaltige Stadtentwicklung

摘要

Within the next 20 years "aspern Vienna's Urban Lakeside" (aspern Die Seestadt Wiens) in Vienna's 22nd district aims at providing a high-quality urban area with working and living facilities for up to 20.000 inhabitants and 25.000 employees. The master plan describes the development of a total gross floor area of more than 2 million squaremetres. A research project was set up to define measures for an environmentally sustainable development of this area. It consists of an integrated energy concept to balance and optimise energy use and supply and the definition of criteria on energy efficiency and sustainability that form part of the tendering process for the individual building lots. The starting point of the project was the development of an integrated energy concept. It was based on the estimation of the future energy demand, an analysis of the available resources and the potential for using renewable energy sources. Priority areas were defined for district energy systems (heating and cooling) as a result of an assessment of economic feasibility and an analysis of primary energy benefits. The positive contribution of deep geothermal energy sources (implementation is currently being assessed), was shown, as well as the primary advantages of implementing photovoltaic technologies. Apart from that an overall guideline for responsible urban development was created that lists demands and measures in three fields: town planning, mobility and use of resources. First, it correlates benchmarks in international urban developments with measures for aspern Urban Lakeside on the level of settlement. Furthermore, on the level of building lots, a criteria catalogue has been elaborated. In the tendering processes the projects of the potential investors will be assessed according to their performance in terms of sustainability criteria. Thus, aspern shall become a role model for the development of a sustainable city.