Keyu Bao

Impulses for transdisciplinary urban development. Digital version of the book is available on https://transfer.hft-stuttgart.de/pages/zukunftstadtlabor/website/home/

An economy’s shift towards climate neutrality requires a massive expansion of renewable energy production. Next to wind, photovoltaic (PV) and biomass will be key renewable resources in many regions. A land-use change to PV increases local electricity production, but influences regional water and biomass availability. However, a regional quantitati...

Solar photovoltaic (PV) is a key technology for any renewable energy system. As subsidy-free PV becomes more and more economically feasible, region-specific planning tools that define areas suitable for ground-mounted PV are needed. While many top-down studies have assessed suitable areas at a national scale, an accurate scalable bottom-up assessme...

This work assesses the role of biomass and municipal solid waste in isolated energy systems. For this, La Réunion, a French overseas territory in the Indian Ocean with a population of about 850,000, serves as a case study. Methodically , the study assesses technical biomass-based potentials based on an island-wide digital landscape model, detailed...

Urban green infrastructures such as green roofs can reduce building energy demand, mitigate rainfall run-off and improve urban air quality. On the other hand, decentralized renewable energy systems such as rooftop photovoltaics (PV), are one of the key actions towards reducing a building’s energy dependence and greenhouse gas emissions. This study...

The projected increasing population in cities and metropolitan regions results in higher demands of resources, i.e., food, water, and energy (FAO 2018), that are essential for human well-being, poverty reduction, and sustainable development (Hülsmann and Ardakanian 2018). There are clear interactions between water, food, and energy that may result...

Cities are undergoing rapid urbanisation throughout the globe. A common challenge amongst them is to provide food, water, and energy (FWE) supplies under sustainable and economically productive conditions. As a result, new tools and techniques must be developed to support domain experts and decision-makers to understand, simulate and visualise the...

Information on household areas and the corresponding number of occupants is very important in order to derive realistic demand profiles for water or electricity as part of holistic urban energy modeling. However, this data is usually not available. Therefore, this paper presents a method that uses 3D building models and national census data to deri...

A quantitative assessment of food-water-energy interactions is important to assess pathways and scenarios towards a holistically sustainable regional development. While a range of tools and methods exist that assess energetic demands and potentials on a regional scale, the same is not true for assessments of regional food demand and potential. This...

District heating is seen as an important concept to decarbonize heating systems and meet climate mitigation goals. However, the decision related to where central heating is most viable is dependent on many different aspects, like heating densities or current heating structures. An urban energy simulation platform based on 3D building objects can im...

In der Fallstudie Stuttgart wurden im Rahmen des Projekts ENsource zwei verschiedene Methoden aufgezeigt, die der lokalen Verwaltung und Energieplanern helfen, die Energieversorgung von Neubau- und Bestandsgebieten optimiert auszulegen. Für Neubaugebiete wurde gezeigt, wie ein 3D-Gebäudemodell konfiguriert und genutzt werden kann, um die Energiepla...

The assessment of regional bioenergy potentials from different types of natural land cover is an integral part of simulation tools that aim to assess local renewable energy systems. This work introduces a new workflow, which evaluates regional bioenergy potentials and its impact on water demand based on geographical information system (GIS)-based l...

Humans’ activities in urban areas put a strain on local water resources. This paper introduces a method to accurately simulate the stress urban water demand in Germany puts on local resources on a single-building level, and scalable to regional levels without loss of detail. The method integrates building geometry (CityGML), building physics, censu...

The assessment of theoretical and technical biomass potential from different types of natural land cover is an integral part of simulation tools that aim to assess local multi-energy systems. This work introduces a new workflow which evaluates the local biomass potential from various sources, its transformation to different forms of secondary energ...

The assessment of theoretical and technical biomass potential from different types of natural land cover is an integral part of simulation tools that aim to assess local multi-energy systems. This work introduces a new workflow which evaluates the local biomass potential from various sources, its transformation to different forms of biofuel and the...

The county of Ludwigsburg is located in the centre of Baden-Württemberg, in Germany’s south-western corner. It covers an area of approximately 265 square miles, with a population of about 550,000 inhabitants, spread across 39 municipalities. In 2013, the county set itself a goal of reducing greenhouse gas emissions by 90 percent until 2050 through...