Christof Weinhardt

Christof Weinhardt
Karlsruhe Institute of Technology | KIT · Institute of Information Systems and Marketing

About

473
Publications
128,574
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7,535
Citations

Publications

Publications (473)
Article
The success of incentives for investments in sustainable residential energy technologies depends on individual households actively participating in the energy transition by investing in electrification and by becoming prosumers. This willingness is influenced by the return on investments in electrification and preferences towards environmental sust...
Conference Paper
Full-text available
Experts consider tokenization a potentially disruptive blockchain-based innovation. Cryptographic tokens can represent ownership of tangible and intangible assets in the digital space, serve as a store of value and proof of ownership, and enable investments in historically illiquid assets. While there are promising use cases for these new technolog...
Conference Paper
Disinformation campaigns have become a major threat to democracy and social cohesion. Phenomena like conspiracy theories promote political polarization; they can influence elections and lead people to (self-)damaging or even terrorist behavior. Since social media users and even larger platform operators are currently unready to clearly identify dis...
Article
The building sector, and especially residential households and office buildings, account for a large share of global emissions. Meanwhile, energy literacy is extremely low amongst residents and citizens in general, leading to insufficient evaluations of energy efficiency measures and technology equipment for buildings. To address this issue, we dev...
Book
In der heutigen Zeit stehen produzierende Unternehmen aufgrund der Unsicherheit und Komplexität von Umwelteinflüssen sowie des wachsenden Wettbewerbsdrucks vielen Her-ausforderungen gegenüber. Die Pandemie hat uns deutlich veranschaulicht, wie volatil und fragil unsere Lieferketten geworden sind. Eine Möglichkeit, diese Herausforderungen gemeinsam...
Conference Paper
Full-text available
The Internet has created great opportunities for consumers. With the digitalization wave breaking, Single Sign-On services emerged that satisfy the desire for seamless online journeys and provide users with their digital identities. On a global scale, oligopoly structures evolved where "tech giants" primarily manage identities and personal data. Co...
Conference Paper
Full-text available
While advocates argue for the disruptive impact of marketplace business models and Blockchain in various regards, their practical effects on today's organizations are still limited. This study reviews the current body of literature on Blockchain-enabled Marketplaces in Business Ecosystems, outlines present scopes, and disregarded topics. Our review...
Article
Hydrogen can contribute substantially to the reduction of carbon emissions in industry and transportation. However, the production of hydrogen through electrolysis creates interdependencies between hydrogen supply chains and electricity systems. Therefore, as governments worldwide are planning considerable financial subsidies and new regulation to...
Conference Paper
Full-text available
Data monetization has proven to be one of the most viable profit pools across industries. As vehicles become increasingly connected, leveraging their collected data through novel business models is the most promising value driver for automotive enterprises. Despite the increasing practical relevance, theoretical and conceptual insights on connected...
Article
The transition of the energy sector towards more decentral, renewable and digital structures and a higher involvement of local residents as prosumers calls for innovative business models. In this paper, we investigate a sharing economy model that enables a residential community to share solar generation and storage capacity. We simulate 520 sharing...
Chapter
Mobile Crowd Sensing is a widespread sensing paradigm, successful through the ever-growing availability of mobile devices and their increasing sensor quality. Mobile Crowd Sensing offers low-cost data collection, scalability, and mobility, but faces downsides like unknown or low sensing quality and uncertainty about user behavior and movement. We e...
Article
Full-text available
Digital government opens up opportunities to critically reflect on administrative and government processes and to rethink them accordingly. In the past, citizen participation processes were subject to numerous challenges, but e‑participation offers opportunities to combine them with modern technologies that enable low-threshold participation. In th...
Chapter
Flow represents a valuable daily life experience as it is linked to performance, growth, and well-being. As flow support is still a major challenge due to a lack of automatic and unobtrusive detection methods, NeuroIS scholars face the opportunity to devise measurement approaches for flow experience during IS use and, moreover, flow supporting, ada...
Conference Paper
Full-text available
Substituting fuel-based and manual delivery for the last miles with electric automated guided vehicles (e-AGVs) promises to substantially reduce CO2 and noise emissions, and traffic congestion in urban areas. As they are battery-based vehicles, efficient battery charging which alleviates range and recharging limitations is crucial for the delivery...
Article
Full-text available
In recent years, local energy markets have become an important concept in more decentralized energy systems. Implementations in pilot projects provide first insights into different hypotheses and approaches. From a technical perspective, the requirements for the IT infrastructure of a local energy market are diverse, and a holistic view of its arch...
Article
Coordinated operation of Coupled Electric Power and District Heating Networks (CEPDHNs) brings advantages as e.g., the district heating networks can provide flexibility to the electric power network, and the entire system operation can be further decarbonized through heat pumps and electric boilers using electricity from renewable energy sources. S...
Conference Paper
Supply chain planning in global production networks is a very difficult task due to the high diversity of products and machines and the immense number of possible configurations. An important task in this area is capability matchmaking: finding machines that are capable to produce specific parts. Today, this is done by experienced engineers who hav...
Article
Full-text available
Mission statements are written declarations that summarize and communicate an organization's core values and strategies and present managerial tools that can be used to motivate employees by creating a common self-understanding of an organization. With politics aiming to become ever more inclusive and participative ranging from the local to the glo...
Article
Full-text available
Local, decentralized, and highly volatile electricity generation of renewable energy sources (RES) calls for new market approaches. Local energy markets (LEMs) match electricity production and consumption in a decentralized approach which reflects the distribution of the growing amount of RES. The blockchain technology, a distributed information an...
Article
Electric vehicles have proven to be a viable mobility alternative that leads to emissions reductions and hence the decarbonization of the transportation sector. Nevertheless, electric vehicle adoption is progressing slowly. Vehicle fleets are a promising starting point for increased market penetration. With this study, we address the issue of fleet...
Article
Full-text available
Local energy markets (LEMs) are well suited to address the challenges of the European energy transition movement. They incite investments in renewable energy sources (RES), can improve the integration of RES into the energy system, and empower local communities. However, as electricity is a low involvement good, residential households have neither...
Preprint
Full-text available
For the final, published version of this article see: https://www.sciencedirect.com/science/article/pii/S0301421521005930 ------- Hydrogen can contribute substantially to the reduction of carbon emissions in industry and transportation. However, the production of hydrogen through electrolysis creates interdependencies between hydrogen supply chains...
Article
Following the European Union’s emission reduction goals, the expansion of intermittent renewable energy sources is being pursued by numerous member states. This poses challenges especially to low-voltage electricity grids that are not designed for the volatile and unpredictable feed-in from renewable generation capacity. In addition to the expansio...
Conference Paper
Full-text available
Mission statements are documents that summarize an organization's core values and strategies and are used to motivate employees by creating a common understanding among them. However, studies have shown that employees often seek more involvement in the development of mission statements in their organizations. Digitization pushes the implementation...
Chapter
Reputation systems are core components of online platform markets, incentivizing trust and trustworthiness. Small market design details may have large implications on the extent of trade and platform revenues. We selectively review our own and others’ research on the design of reputation mechanisms for platforms highlighting particular issues in th...
Article
Full-text available
We analyze the predictability of the bitcoin market across prediction horizons ranging from 1 to 60 minutes. In doing so, we test various machine learning models and find that, while all models outperform a random classifier, recurrent neural networks and gradient boosting classifiers are especially well-suited for the examined prediction tasks. We...
Conference Paper
Full-text available
As levelized costs of electricity for many renewable generation sources are continuing to fall and as feed-in tariffs are consequently being phased out, financial risk hedging for intermittent renewable generators takes a central stage. Battery storage as complementary capacity can support renewable generators regarding a more stable supply of elec...
Conference Paper
Full-text available
Citizen Energy Communities (CECs) are increasingly promoted in the European Union and beyond as a form of locally operated microgrids. While traditional microgrid research is often focused on an optimized operation, individual preferences regarding conflicting objectives are becoming more important in such communities. In this study, we present an...
Conference Paper
Full-text available
Hydrogen fueled transportation can contribute substantially to the reduction of global carbon emissions. However, the production of hydrogen through electrolysis creates interdependencies with electricity systems. Therefore, we present a new model which couples the hydrogen supply chain with the electricity system. We use this model to analyse a ca...
Conference Paper
When it comes to construction projects, public debates and protests may arise if architectural plans remain unshared with the citizens they might affect. To involve the public affected by construction projects, offering easily graspable visualization for citizens is key. E-Participation provides opportunities to include technological innovations th...
Preprint
Full-text available
While photovoltaic (PV) systems are installed at an unprecedented rate, reliable information on an installation level remains scarce. As a result, automatically created PV registries are a timely contribution to optimize grid planning and operations. This paper demonstrates how aerial imagery and three-dimensional building data can be combined to c...
Chapter
We analyze the predictability of the bitcoin market across prediction horizons ranging from 1 to 60 min. In doing so, we test various machine learning models and find that, while all models outperform a random classifier, recurrent neural networks and gradient boosting classifiers are especially well-suited for the examined prediction tasks. We use...
Preprint
Full-text available
As levelized costs of electricity for many renewable generation sources are continuing to fall and as feed-in tariffs are consequently being phased out, financial risk hedging for intermittent renewable generators takes a central stage. Battery storage as complementary capacity can support renewable generators regarding a more stable supply of elec...
Article
Full-text available
Battery electric vehicles do not emit CO 2 from an internal combustion engine but can cause emissions while charging electricity generated by remote fossil power plants. Smart charging offers the possibility to reduce carbon dioxide emissions (CO 2) by shifting the charging sessions to moments with lower emissions in power generation. However, this...
Article
Full-text available
To face the challenges of climate change, the integration of renewable energy sources in the energy-intensive heating sector is a crucial aspect of emission reduction. For an efficient operation of coupling devices such as heat pumps with intermittent sources of renewable energy, accurate heat load forecasts need to be developed and embedded into a...
Chapter
Virtual reality (VR) enables people to engage in experiences that reach far beyond physical reality. This has inspired humanitarian organizations (among others the United Nations) to use VR technology to raise the awareness of humanitarian crises by virtually transporting people to the regions affected. As a consequence, these immersive experiences...
Conference Paper
Full-text available
In this paper, we present the first model for hydrogen-fueled bus fleet operation with on-site hydrogen production. To support the planning and operation of municipal hydrogen bus fleets, we transfer and adapt a vehicle scheduling algorithm for conventional buses. We optimize vehicle routes with regard to minimizing operational costs. Based on that...
Preprint
Full-text available
At many charging stations, the charging process of battery electric vehicles (BEV) takes significantly more time than refilling a gas tank. In combination with the lack of charging stations, this results in more planning effort for drivers who have to find a free charging station. In addition, charging draws a significant amount of energy from the...
Conference Paper
Full-text available
While the adoption of new information systems is predominantly seen as a positive phenomenon, there is increasing evidence of negative consequences for users-reflected in paper titles featuring terms like Internet Addiction, Technostress, or Social Networking Sites Addiction. Particularly the smartphone-potentially due to its high prevalence and it...
Article
Full-text available
The rapid transformation of the electricity sector increases both the opportunities and the need for Data Analytics. In recent years, various new methods and fields of application have been emerging. As research is growing and becoming more diverse and specialized, it is essential to integrate and structure the fragmented body of scientific work. W...
Conference Paper
Full-text available
Data sharing between companies enables formerly unexploited potential for data-driven business applications. While it is clear how the owner of the business application will profit from the shared data, it is still in question how other stakeholders are incentivized to share data across company borders. We developed the data provision game based on...
Article
Full-text available
Users charging the batteries of their electric vehicles in an uncoordinated manner can present energy systems with a challenge. One possible solution, smart charging, relies on the flexibility within each charging process and controls the charging process to optimize different objectives. Effective smart charging requires forecasts of energy requir...
Conference Paper
Full-text available
Blockchain technology is an innovation of the 21st century that is supposed to act as a trust-building factor and may provide the foundation for trust-free systems as well as market exchanges. We investigate how the trustrelated properties of blockchain technology influence trust relationships of participants in the platform economy. Building on th...
Chapter
Full-text available
Recent disputes over public construction projects show that the public is interested in urban development. When construction projects lack communication about its impact, agenda and costs, citizens might feel overheard and pro-tests may arise. As a consequence, trust in public administration and politics could suffer serious damage. Following the i...
Data
This documentation describes a data set for the German electricity system in 2030 and the methodology behind certain figures. The data can be used under a Creative Common license. The data set includes 1.) topological data on the transmission grid, the generation infrastructure and the demand, 2.) a time series of electricity demand in 2030 in an h...
Conference Paper
As cooperation is becoming increasingly important for complex knowledge work tasks, so is the need to understand how to support it. This study contributes to this aim by manipulating flow experience intensities for individuals working alone or in digitally- mediated small groups. Contrary to related work it is found that flow is not experienced as...
Article
Local energy markets are often discussed as a means to solve the challenges of decentralization, decarbonization and digitization emerging from the energy transition. However, their (potential) business models, and thus their rationalization in our economy, remain largely unknown. Suitable business models are required to leverage economic benefits...
Article
In many platform-mediated services, people share resources in a way that involves social value beyond mere economic considerations. Considering peer-to-peer accommodation sharing, this paper links booking intentions to hosts’ user representation (UR). We consider how the most common UR artifacts facilitate sharing through social and economic value....
Conference Paper
Famous examples like the Amazon headquarter in New York City or the Stuttgart 21 train station demonstrate that construction projects are often subjects of common interest and can therefore produce protests if citizens feel unheard in urban planning. In this manuscript, we would therefore like to investigate whether e-participation can be used as a...
Article
Full-text available
Uncontrolled charging of plug-in Battery Electric Vehicles (BEV) represents a challenge for the energy system. As a solution, recent studies propose smart charging to avoid grid congestion and to integrate renewable energy. While financial benefits for smart charging schemes are currently quite low, there are other objectives for smart charging. Ho...
Article
With an increasing number of electric vehicles (EVs) on the road the need for charging stations increases. Some of these stations are placed at the destinations of drivers rather than along the route of their trip. The aim of this paper is to highlight the importance of user behavior in the context of public destination charging and to provide an e...
Technical Report
Full-text available
Der Modellversuch zum Handel mit Flächenzertifikaten prüfte realitätsnah, ob handelbare Flächenzertifikate ein Instrument sein können, um den Städten und Gemeinden dabei zu helfen, den Flächenverbrauch zu vermindern und die Innenentwicklung zu stärken. Der Modelversuch wurde mit 87 Kommunen aus ganz Deutschland durchgeführt. Er bestand aus zwei zen...
Conference Paper
The experience of flow has been centrally linked to peak task performances and heightened well-being. To more effectively elicit these outcomes, flow is increasingly studied using neurophysiological measures. For example, portable EEG is employed to enable automatic state detection required for adaptive system design. However, so far, there is a la...
Article
We conduct a structured literature review on the concept of local energy markets (LEMs). LEMs have gained increasing attention in the last two decades. Yet, a holistic definition and clear demarcation of LEMs is still missing. The review shows current works to shift their focus from conceptual implementation and design to increasingly realistic app...
Article
In this paper, we propose a model-based system architecture for an interoperable blockchain-based local energy market for prosumers in a residential microgrid setting. Based on the Smart Grid Architecture Model our analysis deduced 21 organizational, informational, technical and blockchain requirements for a local energy market and its underlying i...
Conference Paper
Full-text available
As residential customers become a more integral part of the electricity system the importance of electricity tariffs increases. The widespread adoption of new, economically efficient tariffs for residential customers can yield substantial system benefits. However, in liberalized electricity markets tariffs are selected by each individual household....
Research
This dataset contains the electric power consumption of 28 German companies in 15 minutes resolution. The data was adjusted for inconsistencies in the daylight saving time transitions. Other inconsistencies and errors were not eliminated. The data were collected by power utilities for billing purposes and covers the years 2014 and 2018. The compani...