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Bauherren formulieren immer ��fter den Wunsch nach einem gesunden Wohnumfeld. Aufgrund von verf��gbarem Materialwissen und Baustoffinformationssystemen sind Planer mittlerweile in der Lage, materialspezifische Anforderungen zum schadstoffarmen Planen und Bauen abzuleiten. Aktuell gibt es jedoch keine standardisierten Vorgehensstrategien und Hilfen, die den Planer bei der Umsetzung der daraus entstehenden prozessbezogenen Herausforderungen unterst��tzen. Schadstoffarme Projekte werden h��ufig als Individualwerk, mit immer wieder neu konzipierten Abl��ufen, von Experten durchgef��hrt. Bereits entwickelte Expertenl��sungen verbleiben als exklusives Wissen bei wenigen Fachplanern. Nur einzelne Teilprozesse sind als Strategiewissen f��r alle verf��gbar. Somit bleiben zu viele Fragen und Unsicherheiten zur Planung und Bauausf��hrung offen, Experten sind nach wie vor notwendig, wenn besonders schadstoffarm gebaut werden soll. Ziel der Arbeit ist die Entwicklung einer prozessbezogenen Vorgehensstrategie zur Qualit��tssicherung des schadstoffarmen Planens und Bauens. Eine praxisnahe Systematik soll ���neue��� Abl��ufe und Zusammenh��nge f��r Planer aufzeigen, um fr��hzeitig Risiken zu vermeiden. Aufbauend auf einer Vorstudie zu theoretischen Risikomodellen und beispielhaften Bauteilbetrachtungen wird eine qualitative Studie mit der Methode der Experteninterviews durchgef��hrt, um Expertenwissen und deren Planungswissen zu explizieren und f��r die Ergebniserstellung zu interpretieren. Als Ergebnis der Untersuchung werden sieben sog. ���neue��� Kernprozesse zum schadstoffarmen Planen und Bauen definiert und mit Checklisten hinterlegt. Um aufzuzeigen, wie der theoretische Ansatz in eine praxisnahe Anwendung ��berf��hrt werden muss, folgt eine zweite Ausarbeitungsstufe. In dieser werden die Modelle und die Checklisten zu einem Strategiemuster zusammengef��hrt. F��r zwei Bauteile k��nnen hiernach eine Bauteilmatrix, Bauteilmuster und Hilfetexte erstellt werden. Die entwickelte Vorgehensstrategie stellt eine praxisnahe Planungshilfe zur Qualit��tssicherung dar und besteht aus folgenden 4 Ebenen: - Ebene E.1 ���Strategiemuster��� - ��berblick Risikobereiche. - Ebene E.2 ���Bauteilmuster��� - Vergleichsm��glichkeit Bauteile. - Ebene E.3 ���Bauteilmatrix��� - Kurzhinweise Risiken. - Ebene E.4 ���Strategiebl��tter��� - Handlungsanweisung. Clients more and more ask for healthy living and working environments. Planers see themselves challenged to fulfill these requests. They benefit from product information, which aims to support them, and which evolves ongoing. But nevertheless, currently, there are no standardized and freely accessible procedural strategies and aids, supporting the planner in implementing these specified requirements in planning and construction processes. Project management is often carried by an individual with him constantly redesigned processes. This comes with a large number of questions and uncertainties in regards to planning and construction, resulting in the consultation of an expert. The aim of the following research work is the development of a process-related strategy, which helps to qualitatively manage planning and construction processes of environmentally-friendly projects, projects that contain fewer pollutants. New processes are to modeled in step with actual practice in order to avoid risks early enough. Based on a preliminary study of theoretical risk models and exemplary construction components, a qualitative study helps to explicate expert knowledge and strategies by using the method of expert interviews. As a research result, seven so-called "new" key processes are defined for the planning and construction of projects with fewer pollutants. These results are displayed as two-dimensional models in various levels of detail and are supplemented by so-called checklists. In order to transmit these theoretical approaches into a practical application, a strategy pattern is developed out of the models and the checklists. In addition, this pattern is verified du to an exemplification with the examples of two external walls. As a result, a matrix as well as a pattern for each construction element can be deviated. Due to the complementation by additional information and the design of a so called strategic data sheet, the scheme and its elements for the quality management system can be identified and defined as the following: - Level 1 E.1 ���Strategy Pattern��� - overview risks. - Level 2 E.2 ���Construction Element Matrix��� - comparison of constructions. - Level 3 E.3 ���Construction Element Pattern��� - key information. - Level 4 E.4 ���Strategic Data Sheet��� - additional information.

In future, heat pumps and shallow geothermal energy will play a central role in the decarbonization of the building and energy sector. The potentials of shallow geothermal energy have not been exploited so far, in particular due to the high complexity of planning and approval processes. In addition, the various stakeholders involved in the planning process create interfaces, which can lead to transfer gaps and barriers for an optimized system design. In order to raise the potentials and optimize the system design, a holistic planning process and the combination of different planning tools are necessary, which enable, among other things, geothermal site evaluations, the representation of the mutual thermal influence of geothermal borehole heat exchangers and their effects on neighboring properties, as well as the evaluation of geothermal systems under consideration of economic and ecological decision parameters. In this context, a simulation-based multi-level planning methodology is presented, which enables the holistic planning of geothermal heat pump systems with borehole heat exchangers on the scales of single buildings up to district level in the early planning phases. By integrating calculation tools for mapping the upper ground and subsurface into a closed simulation chain, existing transfer gaps between different trades can be closed. Using a prototypically implemented system configurator, geothermal heat pump systems can be designed in detail, compared with conventional systems, and evaluated on the basis of technical, energetic, economic, and ecological criteria. The combination of configuration, immediate result plotting and automatically triggered simulations running in the background enables an iterative and practical design process. In this context, a heat pump system model is presented which is adapted to the functionalities of the system configurator and specialized for the early planning process. This model includes thermal storage balances and control algorithms, is applicable on city district level and can be coupled bidirectionally to subsurface models. The tool chain's connection to an existing web- and GIS-based geoportal including databases enables a central data aggregation and geothermal site evaluations. This can provide tool-based support for the application and approval process of shallow geothermal systems and holistic planning approaches such as municipal heat planning. Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2023; Aachen : RWTH Aachen University 1 Online-Ressource : Illustrationen, Diagramme (2023). = Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2023 Published by RWTH Aachen University, Aachen

This paper argues that the sustainability paradigm is currently used to transform industrial port cities into creative sustainable cities (Müller, 2013). Based on empirical data from the city of Dublin, I show that the sustainability paradigm is combined with the creative city paradigm to revitalize inner-city quarters. This urban planning strategy includes a focus on the creative class (Florida, 2004) and aims at integrating the old in the new, both in architectural and social terms. With this, it tries to be an integrative urban revitalization strategy. In the course of the 20th century, the Irish society developed from an industrial to a postindustrial, knowledge-based society (Bell, 1973; Drucker, 1993). New occupations emerged, making new forms of working spaces and modes of transport necessary, and a growing population now asks for a new kind of living spaces. Additionally, inner-city quarters have become increasingly popular with people working in knowledge-intensive industries. Consequently, city planners have initiated a revitalization process in these quarters, and they used two urban planning paradigms â creative cities (Florida, 2005) and sustainability â as guidelines for urban regeneration. This strategy aims to transform the whole city, but the single districts have to be the object of investigation when empirically approaching the changes of the built environment. Here we see that a threefold understanding of sustainability is used to integrate the demands of the new social groups in those of existing communities. Thus, the approaches used in the districts differ: (1) In The Liberties, home of a new-build technology cluster, the focus is on an economically sustainable development. (2) In Temple Bar, Dublin's cultural quarter, the emphasis is on a socially sustainable approach. (3) In the Docklands, the area of the old inner-city harbor, an attempt is made to combine all three dimensions of sustainability by creating new buildings (ecological sustainability) for both 'old' and 'new'1 inhabitants (social sustainability) and work space for growing industries like the knowledge-intensive industries (economic sustainability). The urban revitalization strategies have one thing in common: The inner-city districts dispose of a number of protected buildings which have to be integrated in the re-structuring of the quarters. Therefore, these buildings are renovated and combined with new buildings to form an architectural and spatial image of Dublin as a city with a future that is rooted in the city's industrial past. In this sense, the urban regeneration approach even has a notion of architectural and historical sustainability. San Francisco

Against the backdrop of the irreversible and systematic destruction of ecosystems, necessary for the survival and quality of life of people and non-human species, caused by human agency and socio-economic structures, we explore the opportunities and challenges to resist ecocide in relation to socio-economic inequality and the crisis of democracy. To this end, first section focuses on the diagnosis of ecocide. We show that due to three fallacies the connection between ecocide, socio-economic inequality and the crisis of democracy is not sufficiently accentuated. In the second section, several contemporary political measures to deal with ecocide are critically examined. We will argue that Agenda 2030, the Sustainable Development Goals, is part of the problem as it falsely assumes the compatibility of sustainability and economic growth. Finally, in the third section, the opportunities and challenges of resistance to ecocide are discussed with an emphasis on the power asymmetries between the Global North (GN) and the GS.

Urban drainage infrastructure has to adapt to challenges such as climate change, but also to trends such as population and settlement development. At the same time, the opportunities offered by digitization can be used to meet these challenges. In this thesis, therefore, two geoinformation-based models are developed, which use the advancing digitization to contribute to the adaptation of urban drainage to demographic and climate change. An important aspect of municipal flood protection are nature-oriented measures for the rainwater management as part of water-sensitive urban development. According to the recognized rules of technology, the overriding goal of rainwater management is to approximate the natural water balance. The estimate of this target value is difficult to determine. The potential offered by decentralized rainwater management measures to achieve or approach this target as well. One geoinformation-based model pursues these two goals. The first goal is the estimation of the water balance deficit. The second goal is a limitation of the potential measures for the best compensation of this deficit. For this purpose, structural, geological and hydrogeological restrictions are taken into account. The model works exclusively with geo-referenced data and thus offers direct localization of the results. Furthermore, the model combines the approach of the empirically determined water balance distribution functions of the DWA-A 102 and a GIS-based calculation. The advantages of this combination are the scaling of a selectable study area and the on the fly consideration of restrictions for the measures of decentralized rainwater management. The second geoinformation-based model is an artificial neural network (ANN) for calculating flood areas caused by heavy rain. The trained ANN is suitable for known areas, works in real time and substitute a conventional hydrodynamic model. Therefore, a supervised learning multi-layer feed-forward ANN was set up and trained. After that, it was then examined and assessed for its suitability. For the substitution of a hydrodynamic numerical model for calculation of flooding risks (flood areas or surface runoff) by an ANN, the ANN must 'learn' the hydrological processes of the conventional model. For this learning process, the ANN requires input values that essentially determine the hydrological processes (e.g. precipitation, digital elevation model, type of sealing, barriers and culverts, etc.). Moreover, the AAN requires target values. For the ANN, the target values are areas with a certain height water level caused by a precipitation event (flood areas with flood level). These target values were first calculated using a hydrodynamic numerical model.The developed model shows that ANNs are more suitable than conventional hydrodynamic numerical models for certain applications due to their computing speed. Even if the generalizability of the trained ANN to other model areas could not be successfully demonstrated, the ANN however was able to predict good results for a sufficiently known range of values.The biggest advantage of the ANN is the low computing time for predicting flood areas. In contrast to hydrodynamic numerical models, the ANN predicts flood areas with sufficient accuracy in a few seconds. The application possibilities of the developed model thus specialize in cases in which these strengths are indispensable. One indispensability is the prediction of flood area caused by spontaneously and spatially limited heavy rain. This indispensability is also a demand of the municipal flood protection. Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2021; Aachen : RWTH Aachen University 1 Online-Ressource : Illustrationen, Diagramme (2021). = Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2021 Published by RWTH Aachen University, Aachen

Welche Bedarfe, Ideen und Lösungen sehen hochqualifizierte Migrant*innen für eine nachhaltige Stadtentwicklung? Inwiefern eignet sich Urban Design Thinking als ko-kreative Methode und Impuls für städtische Transformationsprozesse? Was bringen solche ko-kreativen Stadtentwicklungsprozesse mit bestimmten Bevölkerungsgruppen einer Stadt wie Mannheim und wie fügen sie sich in die Stadtpolitik ein? Wie kann man andere Städte dafür interessieren, was im Mannheimer Reallabor erprobt und erarbeitet wird? Diese neugierigen Fragen waren der Ausgangspunkt zu einem Forschungs- und Entwicklungsprozess, der sich zwischen 2016 und 2019 in der Stadt Mannheim im Rahmen des Forschungsprojekts Migrants4Cities. Hochqualifizierte Migrant*innen gestalten Zukunftsstädte entfaltete. Migrants4Cities hat mit Urban Design Thinking in einem ko-kreativen Arbeitsprozess zu zentralen Stadtentwicklungsthemen in Mannheim real experimentiert und versteht sich daher als Reallabor. Die Antworten, die das Verbundteam aus der Stadt Mannheim, dem Fachgebiet für Bestandsentwicklung und Erneuerung von Siedlungseinheiten der Technischen Universität Berlin und dem inter 3 Institut für Ressourcenmanagement auf die eingangs formulierten Fragen gefunden hat, werden in diesem Sammelband präsentiert. Das Buch zeigt auf, warum Ko-Kreation auch in der Stadtentwicklung zunehmend an Bedeutung gewinnt und wie mit Urban Design Thinking solche ko-kreativen, am Bedarf der Menschen ausgerichtete Arbeitsprozesse im städtischen Kontext strukturiert und umgesetzt werden können. Es bietet anschauliche Einblicke, wie Urban Design Thinking im Projekt Migrants4Cities eingesetzt wurde, welche Personen in die Arbeit eingebunden waren, was den Arbeitsprozess ausgezeichnet hat und welche Ergebnisse erarbeitet wurden. Basierend auf diesen Erfahrungen wird der ko-kreative Ansatz in Mannheim reflektiert in Bezug auf: die Besonderheiten in der Anwendung von Urban Design Thinking, die Einbindung solcher Vorgehensweisen in die Routinen städtischer Governance, die Mobilisierung und Einbindung der Migrant*innen sowie den Transfer von Ergebnissen in andere Städte. Ermöglicht wurde Migrants4Cities durch die Förderung des Bundesministeriums für Bildung und Forschung im Rahmen des Programms Nachhaltige Transformation urbaner Räume. Which needs, ideas and solutions do migrants identify for a sustainable urban development? Is Urban Design Thinking a suitable method to enable co-creation in urban transformation processes? What are the effects and benefits of such co-creative approaches in a city like Mannheim with its very diverse population, and how do they practically fit into urban governance? How can the interest of other cities be aroused for what is happening in an experimental setting like in Mannheim? These curious questions have been the starting point for a research and development process that took place in Mannheim between 2016 and 2019 within the project Migrants4Cities. High-qualified migrants design future cities. The project experimented with Urban Design Thinking in a real-life, co-creative urban laboratory on key challenges of urban development. This book presents answers to the questions mentioned above, that have been developed by the project team consisting of the City of Mannheim, the Chair for Urban Renewal and Sustainable Development at TU Berlin and inter 3 Institute for Resource Management. The book describes why co-creation gains importance in urban development and how Urban Design Thinking offers tools to structure implement such human-centred approaches focussing on the needs of the people also in urban settings. It offers illustrative insights how Urban Design Thinking was applied in the sub-projects of Migrants4Cities, which persons were involved, what characterized the working process and which results were elaborated. Based on these experiences the authors reflect the co-creative approach concerning: the peculiarities of applying Urban Design Thinking; the integration of such methods into the routines of urban governance; the mobilization and integration of migrants; and the transfer of results to other cities. The project was funded by the Federal Ministry of Education and Research within the program of Sustainable Transformation of Urban Areas. Gedruckt erschienen im Universitätsverlag der TU Berlin, ISBN 978-3-7983-3129-7

The increase in milk yield per cow in dairy farms has been proposed as one strategy to reduce greenhouse gas emissions (GHG) per kg of product. However, besides milk beef can be considered as an important co-product of dairy farming. Thus, the whole system of milk and beef production has to be considered modelling GHG emissions from dairy farming. In order to remain milk and beef production constant suckler cows are needed to compensate for the reduction in beef output from dairy farming due to the increase in milk yield. If both milk and beef production are to remain constant, considerably increasing milk yield per cow could result in higher GHG emissions. Furthermore other side effects of increasing milk yield in dairy farming as competition with human food due to changing amounts of concentrates need to be mentioned. Für die Minderung der Treibhausgasemission je Produkteinheit wird die Leistungssteigerung in der Milchviehhaltung als eine wirksame Maßnahme betrachtet. Da in der Milchviehhaltung üblicherweise Milch und Fleisch erzeugt wird, ist eine Betrachtungsweise des Gesamtsystems erforderlich. Unter der Annahme einer konstanten Produktion an Milch und Rindfleisch, werden mit steigernder Milchleistung zusätzlich Mutterkühe zur Bereitstellung von Rindfleisch benötigt. Aufgrund dieser Zusammenhänge führt eine Steigerung der Milchleistung zu einem tendenziellen Anstieg der THG-Emissionen. Darüber hinaus sind noch Nebenwirkungen zu berücksichtigen, wie z.B. der Aspekt der Nahrungskonkurrenz bei unterschiedlichem Kraftfuttereinsatz. Jahrbuch Agrartechnik, vol. 24. 2012Jahrbuch Agrartechnik 2012, vol. 24.2012, p. 3

To achieve the 1.5 °C target of the Paris Climate Agreement that came into force in 2016 [UNI15], the conversion of the entire energy system to renewable energy sources is essential. Strong and stable wind conditions offshore as well as a high growth potential make offshore wind energy far away from shore an important energy source. The integration of such Offshore Wind Farms (OWF) has to be safe, flexible, efficient, and affordable, which makes High Voltage Direct Current (HVDC) transmission systems often the preferred choice for their grid connection. HVDC transmission systems consist of many subsystems, components, and interfaces e.g. to the OWF, which characterise them as complex systems. The complexity, many and diverse requirements and a large number of system design alternatives require grid planners, grid operators and manufacturers to employ a systematic approach to develop the most suitable design that meets all requirements and functions as expected in its environment. Systems Engineering with its procedure based on the so-called V-model, has proven itself for many years outside the energy industry as a suitable methodology for the development of complex systems. The extension to Model-Based Systems Engineering (MBSE) allows the specification of a system in a universal system modelling language (SysML) based on the activities in the V-model, which enables the collaborative system development across disciplines. Based on the MBSE methodology, a HVDC transmission system for a case study consisting of three OWFs with a total power of 3 GW is designed in this thesis. The requirements are derived from stakeholder needs and categorised before the system design process. Stakeholders are for example the OWF owner and the onshore grid operator. This thesis considers electrical engineering requirements and the objective of a low levelised cost of energy (LCOE) design. The system integration and verification of the prior defined requirements are performed, before a validated HVDC transmission system design is available following the system development process with the V-model. MBSE enables early identification of design errors through verification activities when they are still easy and cheap to correct. The SysML model forms the core element for the HVDC transmission system design as all relevant requirements, constraints, specifications, and the system objective are included in the model. The most suitable system architecture and component definition is developed with a Multi-Criteria Decision Aid assessment and selection method based on the specifications in the SysML model. In this thesis, a step-by-step guideline for the development of HVDC transmission systems based on MBSE is developed to improve the system design with an interdisciplinary and model-based approach. This approach leads to a detailed understanding of system elements and their interactions inside and outside the HVDC transmission system. The result for the case study is a HVDC configuration consisting of two symmetrical monopoles, which can be interconnected as a multi-terminal HVDC system in the event of a monopole failure. This arrangement is identified as the preferred architecture for the case study and assumptions. The converter transformer is chosen as an example to demonstrate the identification of the number and type of components as part of the Systems Engineering process. Discipline-specific models and simulations provide details to the design. At the end of the system design activities, the SysML model represents a detailed specification of the HVDC system and thereby replaces many documents with specifications. The advantage of the developed SysML model is to facilitate the design analysis and to identify the impact of requirement changes or changes in the system environment on the system design. The SysML and discipline-specific models allow the verification of system requirements, e.g. of the availability, which has a high influence on LCOE and is used as an assessment criterion on system and component level. The validation procedure is also introduced. Based on the proposed approach for HVDC transmission system development, the potential for the extension of the methodology for energy systems in general is presented to support the realisation of the energy system conversion to renewable energy sources. Um das 1,5 °C Ziel des 2016 in Kraft getretenen Pariser Klimaabkommens zu erreichen [UNI15], ist die Umstellung des gesamten Energiesystems auf erneuerbare Energiequellen unerlässlich. Starke und stabile Windverhältnisse auf dem Meer sowie ein hohes Wachstumspotenzial machen die Offshore-Windenergie fernab der Küste zu einer wichtigen Energiequelle. Die Integration solcher Offshore-Windparks (OWP) muss sicher, flexibel, effizient und bezahlbar sein, weshalb die Hochspannungs-Gleichstrom-Übertragung (HGÜ) oft für den Netzanschluss bevorzugt wird. HGÜ Systeme bestehen aus vielen Teilsystemen, Komponenten und Schnittstellen, z. B. zu den OWP, was sie zu komplexen Systemen macht. Die Komplexität, die vielen und unterschiedlichen Anforderungen und die große Anzahl von Systemalternativen erfordern für Netzplaner, Netzbetreiber und Hersteller einen systematischen Ansatz zur Entwicklung des am besten geeigneten Entwurfs, der alle Anforderungen erfüllt und in seiner Umgebung wie erwartet funktioniert. Das Systems Engineering mit seinem auf dem sogenannten V-Modell basierenden Vorgehen hat sich seit vielen Jahren außerhalb der Energiewirtschaft als geeignete Methodik für die Entwicklung komplexer Systeme bewährt. Die Erweiterung zum Model-Based Systems Engineering (MBSE) ermöglicht die Spezifikation eines Systems in einer universellen Systemmodellierungssprache (SysML) durch die Aktivitäten im V-Modell, was die kollaborative Systementwicklung über Disziplinen hinweg ermöglicht. Auf der Grundlage von MBSE wird in dieser Arbeit ein HGÜ System für eine Fallstudie entworfen, die aus drei OWPs mit einer Gesamtleistung von 3 GW besteht. Die Anforderungen werden aus der Notwendigkeit der Stakeholder abgeleitet und vor der Systementwicklung kategorisiert. Stakeholder sind beispielsweise der OWP Eigentümer und der Onshore Netzbetreiber. In dieser Arbeit werden elektrotechnische Anforderungen und das Ziel eines Designs mit niedrigen Stromgestehungskosten berücksichtigt. Die Systemintegration und Verifizierung der zuvor definierten Anforderungen wird durchgeführt, bevor ein validierter HGÜ Systementwurf nach dem Systementwicklungsprozess mit dem V-Modell zur Verfügung steht. MBSE ermöglicht die frühzeitige Identifizierung von Entwurfsfehlern durch Verifikation, wenn diese noch einfach und kostengünstig zu korrigieren sind. Das SysML Modell bildet das Kernelement für den Entwurf des HGÜ Systems, da alle relevanten Anforderungen, Randbedingungen, Spezifikationen und das Systemziel im Modell enthalten sind. Die am besten geeignete Systemarchitektur und Komponentendefinition wird auf der Grundlage der Spezifikationen im SysML-Modell mit einer multikriteriellen Methode zur Bewertung und Auswahl entwickelt.

Policy makers see electrified vehicles (EV) as one instrument to reduce local air pollution and also towards a mitigation of climate change. It is known that the “real driving” energy demand of conventional vehicles is significantly higher than the norm consumption. However, there is limited knowledge for the real-world energy demand and charging patterns of EV fleets. Furthermore, first user experiences are important for the uptake of the electrified vehicles. There are not many studies in this field either. Last but not least, the environmental effects of electrified vehicles should be compared with the conventional vehicles in order to assure the positive effect. There are several studies, which compared the well-to-wheel greenhouse gas emissions from conventional and electrified vehicles. However, most of these studies took the yearly electricity mix as basis for the calculations. Therefore, this paper aims to close this knowledge gap by measuring the energy consumption of the electrified vehicle fleets with vehicle data loggers. Furthermore, information on user experiences are gathered by questionnaires. The intentions and expectations are compared and contrasted with the real world driving behaviour of the users. Within the government funded project InitiativE-BW, which started in summer 2014, more than 44 battery electric vehicles (BEV) have been equipped with data loggers in the German federal state of Baden-Württemberg. The project consortium consists of leasing companies, a research institute and a public relations manager to promote the project in the federal state of Baden-Württemberg. The data loggers are intended to run until the end of 2016. The EVs are mostly used by commercial fleets e.g. in social services, car sharing, IT-services and municipalities. The data logged includes hours of operation, state of charge (SoC), mileages driven, speed statistics and GPS information. First results show that varying ambient temperatures have a significant influence on the BEV energy consumption. Average energy consumption is up to 45% higher during winter months. The influence of the charging behaviour of the users is analysed to evaluate the CO2 emissions of the vehicles based on hourly electricity consumption and specific emission profiles of the available power sources, which might significantly deviate from the yearly electricity mix of the country. Among all participants of InitiativE-BW, expectations and experiences with leased EVs are repeatedly evaluated through questionnaires. The questionnaires aim on user costs, electricity tariffs, expected mileages and predicted needs for electric ranges. So far, survey results indicate that EV technical benefits such as their pronounced acceleration are not commonly known. The paper / presentation will present the project itself and the results of measurements and questionnaires analysis until mid of 2016.