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  • 1.
    Atabaki, Mohammad Saeid
    et al.
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet. Kharazmi University, Tehran, Iran.
    Bagheri, Mehdi
    University of Victoria, Victoria, Canada.
    Aryanpur, Vahid
    University College Cork, Cork, Ireland.
    Exploring the role of electrification and modal shift in decarbonizing the road passenger transport in British Columbia2023Inngår i: Sustainable Energy Technologies and Assessments, ISSN 2213-1388, E-ISSN 2213-1396, Vol. 56, artikkel-id 103070Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The possibility of the modal shift to public transport and active mobility while considering transport electrification and fuel efficiency improvement has yet to be adequately investigated. This paper explores transition pathways toward an environmentally sustainable road passenger transportation system in the province of British Columbia (BC), Canada. MESSAGE, as a bottom-up energy systems optimization model, is used to find the cost-optimal fuel and technology mix in the transport and power sector. Multiple scenarios mainly assess the influence of modal shift and electric vehicle (EV) diffusion on greenhouse gas emissions by 2050. Besides, the effects of scenarios on the power sector configuration are examined. The results show that BC would not achieve the 80% emissions reduction target in the Climate Change Accountability Act unless by a radical expansion of transport electrification. The target could be met by a minimum diffusion of 70% EVs in the total car stock as well as 35% public transport contribution in total passenger kilometers. The findings also indicate that fully electrified light-duty vehicles coupled with active transport would lead to almost a zero-emission level. Nevertheless, 100% electrification would impose an extra 5.6 TWh burden on the power supply system relative to the business-as-usual scenario. © 2023 The Authors. Published by Elsevier Ltd

  • 2.
    Lichtenwöhrer, Peter
    et al.
    City of Vienna, Vienna, Austria.
    Hemis, Herbert
    City of Vienna, Vienna, Austria.
    Persson, Urban
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Sánchez-García, Luis
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Atabaki, Mohammad Saeid
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Report on decarbonisation design-approaches based on urban typologies: Deliverable D2.52022Rapport (Annet vitenskapelig)
    Abstract [en]

    This report identifies different typology-based approaches and methods for decarbonising the energy sector of cities. Respectively, typologies were evaluated, and design approaches were developed. In a first step, already existing typologies were evaluated, including a study by the Technical University of Darmstadt and examples from the City of Vienna. In a next step, conceivable structuring criteria and decarbonisation approaches from existing work within the DCP project were identified and summarised. These include structuring criteria such as heat demand density, renewable energy sources or types of refurbishment activities. On this basis, a new typology was developed. Five highly weighted criteria could be derived from the results of the expert survey, including structural energy efficiency, coverage of district heating, potential for renewable sources, potential for waste heat and heat demand density. These criteria formed the basis for the development of the novel typology. The first typology represents areas with high compatibility with highly weighted criteria, the third typology represents areas with comparably low compatibility, while the second typology is associated in between. Based on the developed typology, six design approaches were presented in this report. One short-term and one long-term approach for each typology include recommendations as well as concrete measures for strategic decision-making.

  • 3.
    Persson, Urban
    et al.
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Atabaki, Mohammad Saeid
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Nielsen, Steffen
    Aalborg University, Aalborg, Denmark.
    Moreno, Diana
    Aalborg University, Aalborg, Denmark.
    D1.9: Report on the amounts of urban waste heat accessible in the EU28. Update of deliverable 1.42022Rapport (Annet vitenskapelig)
    Abstract [en]

    This report presents the updated and final results from the work performed in Task 1.2 of the ReUseHeat project to assess the accessible EU28 urban waste heat recovery potential from seven unconventional waste heat sources: data centres, metro stations, food production facilities, food retail stores, residential sector buildings, service sector buildings, and waste water treatment plants. The report focusses on recent data and model updates for the EU28 in total (EU27 plus the United Kingdom), as well as for the project demonstration sites, while less focus is directed towards the original methods and approaches developed for these models; all of which have been described in previous accounts. In terms of data updates, monitoring data from demonstration site operations and public responses to our online project questionnaire on real-world urban waste heat recovery initiatives, are presented and evaluated in overview summary. Regarding model updates, the assessments of urban waste heat potentials from data centres and metro stations have been refreshed by use of new underlying input data, by the configuration of existing and the addition of new model parameters, as well as by reference to later year energy statistics. For the modelling of the total EU28 potential, utilising a dataset for the geographical representation of current urban district heating areas more detailed than the previous one, renders by spatial analytics, under the same “inside or within 2 kilometres of urban district heating areas” default setting as used before, an updated and more accurate assessment of the distances and the vicinity by which low-grade urban waste heat sources are located relative current demand locations. We maintain in this report also our application of the two concepts “available” waste heat and “accessible” waste heat, which, in combination with spatial constraints, are used to distinguish between resource potentials and utilisation potentials. For the total count of activities elaborated in this update (70,862 unique point-source activities compared to the original 70,771), the total available waste heat potential is assessed at some 1849 petajoule per year (~514 terawatt-hours), compared to the original 1842 petajoule per year. At the default spatial constraint setting, the final available waste heat potential is estimated at ~800 petajoule per year (~222 terawatt-hours) from a thus reduced subset of 22,756 unique point-source locations (960 petajoule per year from 27,703 unique facilities in the original), which here corresponds to a final accessible EU28 waste heat utilisation potential anticipated at 1173 petajoule (~326 terawatt-hours) annually (previous assessment at 1410 petajoule annually). For improved dissemination and exploitation of project results, a new web map; the European Waste Heat Map, has been developed and made available at the ReUseHeat project web page where point source data from this work may be viewed and shared. © The Authors.

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  • 4.
    Persson, Urban
    et al.
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Atabaki, Mohammad Saeid
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Sánchez-García, Luis
    Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet.
    Lichtenwöhrer, Peter
    City of Vienna, Vienna, Austria.
    H/C outlook 2050 of cities with cross-city synthesis: Deliverable D2.6 (Edited version)2022Rapport (Annet vitenskapelig)
    Abstract [en]

    This report is the second out of three consecutive accounts of a coherent methodological framework developed in the EU Horizon 2020 project Decarb City Pipes 2050 to define heating and cooling decarbonisation design approaches for cities based on urban typologies. The first and third accounts are, respectively, the deliverable reports D2.5 (Decarbonisation design-approaches based on urban typologies) and D2.7 (Recommendations for cities' H/C supplies & demands in 2050). The framework has been developed by identifying possible thematic synergies between the objectives of the concerned deliverables, by combining different method elements, and by organising a collaborative work strategy among the involved project partners. This report presents, in overview and detail, the input data synonymously used within the framework for the determination of urban typologies, for the modelling and mapping of heating and cooling outlooks for 2050, for the quantification of a cross-city synthesis, as well as for formulating recommendations for cities´ heating and cooling demands and supplies in 2050. The study focusses on the urban areas of seven European project cities (Bilbao (ES), Bratislava (SK), Dublin (IE), Munich (DE), Rotterdam (NL), Vienna (AT), Winterthur (CH)), for which EU-scoped, publicly available input data, to the extent possible, has been gathered according to ten structuring criteria parameters. Heating and cooling outlooks for 2050 are established for each project city based on the used input data and illustrated in the form of tables, graphs, and maps, and constitute the first element of a quantitative cross-city synthesis (city comparison). The second element (city ranking) is facilitated by application of a multi-criteria decision model, which here consists of combining the Analytical Hierarchy Process method (AHP) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS).

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