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The exploratory project MURREAL aims at creating a comprehensive development path for a real laboratory to test the energy transition in the district of Murtal, with the clear perspective of a prototypical model solution also for other (similar) regions. The detailed objectives for the exploratory approach consist of (1) a sound quantification of the status quo, (2) the development of energy transition scenarios, (3) the conception of the implementation pathway, (4) the conception of the real laboratory (as an organisational part of the implementation pathway), and (5) the development of a best-practice knowledge platform. The innovations in the exploratory approach lie in the specific application of the Theory of Change approach and in taking into account the spatial, economic and legal framework conditions. The following innovations and results are to be generated: (1) Use of tools for an evidence-based, digital, comprehensible, replicable synopsis of an integrative energy system, (2) evaluation of scenarios in terms of energy and greenhouse gas dimensions and in terms of regional added-value, (3) simulation of innovative technologies, e.g. Biomass to Liquid (BTL) and Power to Liquid (PTL), (4) conception of the real laboratory with qualitative participation that ensures effectiveness, implementation and long-term sustainability, and (5) transferability to similar regions by generating process guidelines on a best-practice knowledge platform.

Initial situation and problems: The exploratory project in the context of the 8th City of the Future call for proposals is intended to contribute to the development of resilient climate-neutral urban districts with high resource and energy efficiency, increased use of renewable energy sources and a high quality of life. Furthermore, it is intended to contribute to the optimization and adaptation of urban infrastructure and service provision. Aim of the project: The case study Zukunftshof will be used to explore the possibilities of turning an old farm into a lighthouse project for innovative urban agriculture and climate-smart circular economy. The Zukunftshof will be the starting point for a sustainable circular energy and resource system for the urban development area Rothneusiedl in the south of Vienna. For this purpose, KLIMUR develops the methodology and instruments to accompany the planning and decision-making processes for the realization of local resource circular economy (energy, food, water) and integrated district energy concepts. In addition to energy flows (heating, cooling and electricity), resource flows (biomass, nutrients and water) are determined, analysed and simulated at Zukunftshof. The multi-criteria optimization and evaluation models used in this process allow assessments with regard to ecological and energetic indicators and take into account economic framework conditions of the realization variants. The partially conflicting goals are presented and discussed in the planning and coordination process with the stakeholders. From this, possible development scenarios for the Zukunftshof and for the Rothneusiedl district will be derived. Expected project results: • Qualitative and quantitative spatial-temporal analyses for the implementation of the Zukunftshof development concept, with the aim of obtaining a sound basis for realization decisions during the planning and implementation process. • Estimation of possible development scenarios for the Zukunftshof and their interaction with the future urban development area Rothneusiedl. • Financing strategies for the realization of the demonstration project. • A roadmap for implementing the development scenarios at the Zukunftshof.

The project ZQ3Demo aims at developing and supporting three innovative new building districts towards Plus-Energy, in order to demonstrate sustainable and at the same time economic solutions for the implementation of Plus-Energy districts on real examples. During the project, the development and implementation of system solutions for the simultaneous optimization of the technical-economic neighbourhood goals (minimisation of CO2, primary energy and costs during construction and operation) will be supported, with the overall goal of increasing the replicability of Plus-Energy-Districts (PED). In addition, technical and sociological monitoring will be conducted and operation optimised during at least the first year of use. Due to the broad diversity of the demonstration districts in terms of function (living, working, education), degree of implementation (concept, submission, construction) and financing model (freely financed; non-profit; rent and ownership), the project addresses different issues, providing relevant results for a variety of future typologies and thus ensuring a high replication.

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