Holger Wallbaum
YOU?
Author Swipe
View article: Sustainable Solution for Renovation: Life Cycle Insights on Adding Floors to Swedish Multi-Family Houses
Sustainable Solution for Renovation: Life Cycle Insights on Adding Floors to Swedish Multi-Family Houses Open
This paper explores the feasibility of increasing floor area in Swedish multi-family houses during renovations, emphasizing the equilibrium between financial and environmental advantages. The study is framed within the context of the Europ…
View article: Fostering Sustainable Urban Energy Transitions: Backcasting for Positive Energy Districts and Digital Twin strategies in a European context
Fostering Sustainable Urban Energy Transitions: Backcasting for Positive Energy Districts and Digital Twin strategies in a European context Open
Positive Energy Districts (PEDs) have emerged as a key urban innovation to accelerate the transition toward climate neutrality and sustainability in cities. This study explores the integration of backcasting methodologies and Digital Twin …
View article: The myth of informed decision-making: explaining the substantive effectiveness of LCA use in a building product development project
The myth of informed decision-making: explaining the substantive effectiveness of LCA use in a building product development project Open
Purpose This study aims to better understand the substantive effectiveness of life cycle assessment (LCA) in practical settings. While LCA has aspired to inform decision-making for decades, it is clear that many good LCA studies are not fo…
View article: The PROCEEDR Tool to Assess Environmental Impacts, Circularity and Life Cycle Costs of Roadside Equipment
The PROCEEDR Tool to Assess Environmental Impacts, Circularity and Life Cycle Costs of Roadside Equipment Open
Road transport was responsible for 24% of all carbon dioxide emissions in the EU in 2020. The majority of the transport sector's carbon emissions is related to the operation of vehicles, followed by infrastructure construction and rehabili…
View article: Optimal time recommendation model for home appliances: HSB living lab + dishwasher study
Optimal time recommendation model for home appliances: HSB living lab + dishwasher study Open
This study investigates the effectiveness of an Optimal Time Recommendation model (OTR) in encouraging citizens to shift the usage of their home appliances, such as dishwasher to off-peak hours. The research was conducted at the HSB Living…
View article: Digital twin for supporting decision-making and stakeholder collaboration in urban decarbonization processes. A participatory development in Gothenburg
Digital twin for supporting decision-making and stakeholder collaboration in urban decarbonization processes. A participatory development in Gothenburg Open
City Digital Twins have emerged as pivotal tools for representing and modelling urban systems. While existing literature emphasizes technological and framework development, limited attention has been given to the practical usability of dig…
View article: Circular Building Strategies: A Categorization Framework
Circular Building Strategies: A Categorization Framework Open
The concept of Circular Economy (CE) has been gaining increasing attention in the context of the built environment in recent years. Many different circular strategies for buildings, such as reusing structures, Design for Disassembly and Ad…
View article: Towards Positive Energy Districts: Multi-criteria framework and Quality Assurance
Towards Positive Energy Districts: Multi-criteria framework and Quality Assurance Open
This research develops a multi-criteria framework and Quality Assurance checklist (QA) for Positive-Energy-Districts (PEDs). PEDs have a large potential to contribute to reach urban climate goals but require also changes of planning, devel…
View article: Lessons learnt from a regional workshop to develop a transformational plan for the built and urban environment to meet the UNSDGs in 2030
Lessons learnt from a regional workshop to develop a transformational plan for the built and urban environment to meet the UNSDGs in 2030 Open
Urgent transformational change and action within the built environment is needed as it accounts for a large proportion of CO2 emissions and is rapidly growing. A partnership with UN Habitat and Mistra, the Swedish foundation for strategic …
View article: Environmental impacts of circularity in the built environment: How do system boundaries affect decision support?
Environmental impacts of circularity in the built environment: How do system boundaries affect decision support? Open
Life-Cycle Assessments (LCA) have become a common tool of decision support in the built environment regarding environmental impacts. The goal of this study is to investigate the influence of different LCA approaches and system boundaries o…
View article: From use cases to business cases: I-GReta use cases portfolio analysis from innovation management and digital entrepreneurship models perspectives
From use cases to business cases: I-GReta use cases portfolio analysis from innovation management and digital entrepreneurship models perspectives Open
This study provides a detailed exploration of how innovation management and digital entrepreneurship models can help transform technical use cases in smart grid contexts into viable business cases, thereby bridging the gap between technica…
View article: Real-time rolling-horizon energy management of public laundries: A case study in HSB living lab
Real-time rolling-horizon energy management of public laundries: A case study in HSB living lab Open
Energy Management Systems (EMSs) play a vital role in managing energy consumption for both utilities and consumers. By using EMSs, utilities can influence on energy usage and ensure a more reliable and efficient grid operation, while consu…
View article: Detailed Case Studies
Detailed Case Studies Open
Wireless body area networks (WBANs) are one of the key technologies that support the development of pervasive health monitoring (remote patient monitoring systems), which has attracted more attention in recent years. These WBAN application…
View article: Relationship between the design characteristics of activity-based flexible offices and users’ perceptions of privacy and social interactions
Relationship between the design characteristics of activity-based flexible offices and users’ perceptions of privacy and social interactions Open
Activity-based flexible offices (AFOs) provide a variety of workspaces to meet the need for social interactions and privacy at work. This study investigates the relationship between the design characteristics of AFOs and users’ perceptions…
View article: PROCEEDR - Optimizing Resources for more Sustainable Noise and Safety Barriers on European Roads
PROCEEDR - Optimizing Resources for more Sustainable Noise and Safety Barriers on European Roads Open
PROCEEDR aims to create tools to enable National Road Administrations to identify innovative and sustainable solutions to facilitate the transition from linear to circular economy in the field of roadside infrastructure. At the same time, …
View article: Methodologies for Synthetic Spatial Building Stock Modelling: Data-Availability-Adapted Approaches for the Spatial Analysis of Building Stock Energy Demand
Methodologies for Synthetic Spatial Building Stock Modelling: Data-Availability-Adapted Approaches for the Spatial Analysis of Building Stock Energy Demand Open
Buildings are responsible for around 30 to 40% of the energy demand and greenhouse gas (GHG) emissions in European countries. Building stock energy models (BSEMs) are an established method to assess the energy demand and environmental impa…
View article: Matching energy targets, stakeholders’ needs and modelling choices in developing urban energy scenarios
Matching energy targets, stakeholders’ needs and modelling choices in developing urban energy scenarios Open
In order to meet greenhouse gas reduction goals, cities need to develop robust energy transition strategies relying both on the local capacity of combining social, economic and environmental perspectives in the decision-making process and …
View article: A Framework for User Centric LCA Tool Development for Early Planning Stages of Buildings
A Framework for User Centric LCA Tool Development for Early Planning Stages of Buildings Open
As the high greenhouse gas (GHG) emissions caused by the construction and real estate sector receive more attention, more and more countries include an environmental assessment of buildings based on Life Cycle Assessment (LCA) in their bui…
View article: Machine learning‐based stocks and flows modeling of road infrastructure
Machine learning‐based stocks and flows modeling of road infrastructure Open
This paper introduces a new method to account for the stocks and flows of road infrastructure at the national level based on material flow accounting (MFA). The proposed method closes some of the current shortcomings in road infrastructure…
View article: How Does Office Design Support Employees’ Health? A Case Study on the Relationships among Employees’ Perceptions of the Office Environment, Their Sense of Coherence and Office Design
How Does Office Design Support Employees’ Health? A Case Study on the Relationships among Employees’ Perceptions of the Office Environment, Their Sense of Coherence and Office Design Open
This study investigated the current design circumstances of an office as well as employees’ perceptions of the office environment in relation to their perceived health, drawing on sense of coherence theory (comprehensibility, manageability…
View article: Theory of Attractive Quality
Theory of Attractive Quality Open
To improve employees’ comfort, health and productivity, indoor environmental quality (IEQ) is one of the most significant aspects of concern in the workplace. In future office buildings, IEQ is not only to meet the basic requirement of hyg…
View article: Improving indoor environmental quality (IEQ) for occupant health and well-being: A case study of Swedish office building
Improving indoor environmental quality (IEQ) for occupant health and well-being: A case study of Swedish office building Open
Indoor environmental quality (IEQ) is a major domain of building conditions relating to occupant comfort, health and well-being. Especially in the office environment, IEQ can influence work productivity positively. Within the 17 UN Sustain…
View article: Bridging the gap between assessment and action: recommendations for the effective use of LCA in the building process
Bridging the gap between assessment and action: recommendations for the effective use of LCA in the building process Open
Environmental life cycle assessment (LCA) witnesses increasing popularity in the built environment. LCA stimulates among others an efficient use of natural resources and a reduction of carbon emissions through quantification of material an…
View article: Ways to get work done: a review and systematisation of simplification practices in the LCA literature
Ways to get work done: a review and systematisation of simplification practices in the LCA literature Open
Purpose Within the field of life cycle assessment (LCA), simplifications are a response to the practical restrictions in the context of a study. In the 1990s, simplifications were part of a debate on streamlining within LCA. Since then, ma…
View article: Regionalized environmental impacts of construction machinery
Regionalized environmental impacts of construction machinery Open
Purpose This study aims to establish a regionalized environmental impact assessment of construction machinery equipped with diesel engines certified by the European emission standard Stage V, and operated in cold climatic zones in Europe. …
View article: Transforming cities and health: policy, action, and meaning
Transforming cities and health: policy, action, and meaning Open
This article sets the scene for the special issue of Cities & Health Journal on ‘Transforming cities and health: policy, innovation and practice.’ It focuses on systematic transformations to meet sustainability and climate goals whilst…
View article: Energy Efficiency Measures and Data Needs. The Case of the European Building Portfolio Owners
Energy Efficiency Measures and Data Needs. The Case of the European Building Portfolio Owners Open
In line with EU Directives, European building portfolio owners are required to bring their stock to nearly Zero Energy Building (nZEB) standards by 2050. To fulfil this goal in a timely and cost-effective manner, they will need to have a c…
View article: Reliability and Ecological Aspects of Photovoltaic Modules
Reliability and Ecological Aspects of Photovoltaic Modules Open
Photovoltaic (PV) solar energy is expected to be the world's largest source of electricity in the future. To enhance the long-term reliability of PV modules, a thorough understanding of failure mechanisms is of vital importance. In additio…