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Agent-based modeling (ABM) for urban neighborhood energy systems: literature review and proposal for an all integrative ABM approach

Abstract

Advancing the energy transition in real-world urban settings is attracting interest within interdisciplinary research communities. New challenges for local energy balancing arise particularly in urban neighborhoods where densely populated buildings are facing the needs of the heat transition, an increasing use of battery-electric vehicles and an expansion of renewable energies. Agent-based modeling (ABM) is a suitable approach for addressing various interlinked aspects like market mechanisms and processes, technology adoption, different stakeholder roles and the formulation of policy measures. In this work, we analyze peer-reviewed, open-access literature on ABM for energy neighborhoods and discuss key modeling aspects like model purpose and outcome, the logic of agents and decision-making, the treatment of space and time, and empirical grounding. These ABM allow the study of local market mechanisms, local renewable energy generation, microgrids, the unfolding of heat transition, neighborhood mobility and the evaluation of policies like regulation and financial incentives. We find a lack of integrated neighborhood energy assessments that simultaneously look at the different energy forms and applications: heating, electricity, and mobility. We present a consolidated ABM concept that integrates these sectors. Thus, our work contributes to the advancement of ABM and to the understanding of how to promote the transition to a decarbonized society in urban settings.

Introduction

Decarbonizing the building sector is one of the declared aims of the European Union (EU) to achieve climate neutrality by 2050. This sector accounts for around 36% of the overall energy consumption, and its share of energy-related CO2 emissions is about 37% (Alliance for Buildings and Construction Alliance for Buildings and Construction 2021). One concept for tackling the building sector is zero-energy buildings. It combines reduced energy consumption as well as on-site renewable energy production and integration to achieve a zero-energy balance at the building level. While this concept has attracted attention in academia (Nematchoua et al. 2021) and practice (European Commission 2019), some studies argue that zero-energy buildings are challenging to achieve in dense and compact building structures on small lots with little potential for on-site renewable energy generation (Nematchoua et al. 2021; Schneider et al. 2019). It seems promising to apply the zero-energy (or even positive energy) idea to neighborhoods and districts rather than individual buildings. Urban neighborhoods offer excellent potential for decarbonization through the proximity of different energy uses (heating, cooling, electricity for households, commerce, and mobility) and opportunities for efficiency improvements, renewable energy generation, and integration (Gährs et al. 2016).

Integrating electricity, heat supply, and mobility in neighborhoods is essential because, in densely populated areas, all three sectors interact and thus offer synergies in improving efficiency and renewable energy integration. Energy planning must be included in the design of neighborhoods and made an explicit concern right from the start. Urban planners and architects have various modeling and planning tools for energy systems at their disposal (Yazdanie and Orehounig 2021; Klemm and Vennemann 2021). The increasing complexity of planning that requires the integration of economic, ecological, and political aspects poses a challenge to traditional planning and modeling techniques. Here, agent-based modeling (ABM) offers an opportunity (Resnick 1994). ABM describes systems as collectives of interacting, autonomous entities, so-called agents. ABM ranges from simple mathematical models to sophisticated simulation platforms which provide high-level programming constructs and functionalities to support communication between agents. It has been shown that complex techno-economic and socio-cultural phenomena can be modeled and analyzed in greater detail by using this modeling approach. ABM has attracted attention for analyzing localities, regions and individual buildings in a neighborhood and district setting. These typically comprise building energy supply (electricity, heating, and cooling), user behavior, energy services, energy efficiency, and mobility. Technological heterogeneity and scalability are used to track varied preferences, decisions, and communication and to examine ecological, economic, and political aspects (Resnick 1994).

This paper presents an overview of ABM applied to urban energy systems. We conducted a systematic literature review and identified applications as well as methodological aspects of ABM, such as modeling choices and agent descriptions, as well as research gaps. Based on the insights from our review, we propose (the concept of) an urban neighborhood energy system ABM that addresses the limitations identified in the reviewed papers. The proposed ABM will be implemented and executed as a coupled agent-based model in the context of a doctoral dissertation which aims to analyze the effects of policies and local market mechanisms in urban neighborhoods.

Particular attention will be paid to the divergence of an overall system optimum vs. the optima for individual agents. Energy system models used for policy analysis employ an optimization over the entire system (the "benevolent dictator” approach in economics jargon). The real world however is populated by many different actors with different motives and opportunities. In the energy system, like in many societal systems, a societal optimum (for example, an overall least-cost bundle of technology choices for a given overall carbon emission reduction) regularly is missed because individual actors (consumers, building owners, energy companies) have individual motives and constraints. Thus, when individual actors perform strategies that optimize their own situation, the result will not be a societal optimum. ABM are well suited to study this effect.

Methodology

Description of the literature research

In May 2022, we conducted a systematic literature review (SLR) with the Scopus and the mdpi databases to answer the following questions:

  • How is ABM utilized in the energy sectors of electricity, heat, and mobility in neighborhoods?

  • Which market mechanisms, policies, and services are considered?

  • Which ABM platforms are used for the implementation?

Our review follows the PRISMA (preferred reporting items for systematic reviews and meta-analyses) approach (Page et al. 2021). Initially, SLR recommends several combinations of the search term “agent-based”. These combinations may result in modeling, models, simulation, or approaches. It is also possible to use the search terms "multi-agent" or "multi-agent-based." As a result, the study refers to the key search phrase "agent-based" and uses the words model* and simulation. Based on this, the fields of energy OR heat* OR mobility are limited to discovering relevant research in these fields. Several words are used besides neighborhood in the context, such as district, urban, and quarter. For this reason, the search function is extended by the mentioned options ("district" OR "urban" OR "quarter"). The search term is shown in Fig. 1 (Duplicates were removed from the search results).

Fig. 1
figure 1

PRISMA Flow Diagram of study selection for reviewing agent-based model of neighborhoods (Page et al. 2021)

We considered only open access literature: firstly, to promote the open access movement, and secondly, such that readers of our article who are interested in the literature can access it without restrictions. In addition to activating the “open access” filter in the database, we also activated the filter for "Energy" and "Engineer" and omitted some search results because the paper were beyond the scope of our research theme—Fig. 1 summarizes the literature review process. (right).

Results documentation: following the ODD protocol

We focus on the energy system components associated with a neighborhood’s buildings and technical infrastructure (heating, cooling, power supply, batteries, charging stations etc.) as well as individual and group behavior. Furthermore, we examine energy markets and data standards/information systems. We omit the industry, agriculture, and forestry sectors.

We group the selected studies into the related sectors "energy and building" and "mobility" and orient the Overview, Design Concepts, and Details (ODD) protocol to analyze them (Grimm et al. 2006, 2010). This protocol standardizes the documentation of the ABM’s modeling process and results. The ODD protocol checks that all information necessary to comprehend and further analyze the models is included (Grimm et al. 2006, 2010). The ODD protocol contains the following criteria and can find in the chapter Result 1 and Result 2 for the two described sectors:

  • Model Purpose and Model Outcome,

  • Structure of the agents in the study,

  • Overview of the methods for the categories market, politics, user behavior, efficiency, and method.

Finally, in Result 3 is shown which agent-based modeling platforms were used.

Result 1: agent-based modeling with an urban energy system

Twenty-six studies deal with "energy and heat" in neighborhoods. We identified thematic commonalities, formed categories to capture them and structure our review around these (see Table 1).

Table 1 Model overview in model purpose and model output of the selected studies for neighborhood, heat and electricity

The papers in the category "Local heat transition—policymakers" use ABM to analyze policy interventions (taxes and subsidies) for the heat transition and to provide decision support for these. Some papers focus on ABM planning tools and therefore address energy planners and energy utilities interested in designing or expanding the existing infrastructure for the heating transition. This is why we formed the category "local heat transition—energy planners and energy utilities". Two studies deal with planning aquifer thermal energy storage in neighborhoods, we group them under "planning aquifer thermal energy storage". Most of the studies we analyzed examine the local electricity grid. We group them into the category "microgrid only electricity—PV, battery, household, building, substation". The studies only deal with the electricity side of microgrids. The focus is on local electricity generation from PV in combination with batteries to supply households' electricity demand, increase self-sufficiency and minimize external grid purchases. Here, local energy communities and local market mechanisms such as peer-to-peer trade are analyzed. The last category deals with the coupling of a neighborhoods' heat and electricity sectors. These papers deal with the use of local flexibility of PV and heat pumps from two perspectives: First, to investigate the effect on self-sufficiency and grid utilization when PV and heat pump systems are installed, and secondly, to examine the optimized local heat supply from wastewater heat pumps and CHPs. Also considered here is the change in energy demand. Table 1 shows the selected studies and provides an overview of Model Purpose and Model Output.

Having shown Model Purpose and Model Output of the reviewed papers pertaining to “Neighborhood, Heat and Electricity” in Table 1, we now proceed to a description of the agent structure in those papers. We retain the thematic categories and follow the ODD protocol in our description.

  • "Local heating transition—policymakers”: Study (Busch et al. 2017) investigates business models for city-level heating networks in the United Kingdom. The agents represent local players such as energy companies, owners, energy decision-makers, and legislators. The agents use decision chains and can learn from each other through interactions by the actors. Studies Wildt et al. (2021) and Nava-Guerrero et al. (2021) identify value conflicts caused by several sustainable heating solutions in the Netherlands. Heat transformation scenarios are provided to help understand social acceptability difficulties. The agents, such as house owners and investors, are modelled as agents at the local (i.e. immediate neighborhood) as well as the jurisdictional scale (Wildt et al. 2021). In Nava-Guerrero et al. (2021), a neighborhood is examined for 30 years. Owners' household agents provide several preferences in choosing sustainable heating systems, such as group decisions, financial frameworks, and energy plan (transformation strategy). Study Nava-Guerrero et al. (2022) investigates technologies and actor components in yearly steps over 30 years, with the agents representing households. The buildings’ technical components include heating, insulation, and appliances.

  • “Local heating transition—energy planners and energy multi-utilities”: Pagani et al. (2020) addresses heat network extension. It presents an agent-based model that integrates population and building stock to determine heat demand in a bottom-up fashion. The building agents collaborate with the tenants to calculate the hourly heat demand for a year, allowing the assessment where a network expansion is reasonable. Guerrero et al. (2019) refers to its household agents as state variables used to select heating systems. Each agent has nine state variables that characterize it at any moment: insulation level, heating system, yearly natural gas consumption, cumulative expenses, temporal horizon, investment, value orientation, social threshold, and the ability to compare combined investments. In Study Fouladvand et al. (2020) a neighborhood is examined over 30 years with owners' household agents to choose sustainable heating systems. Fichera et al. (2021) analyzes a net-zero energy strategy. Building assets including electric appliances, PV, and batteries are planned, a grid node agent takes care of imports and exports, and the local management agent ensures that the energy is shared locally to implement the net-zero energy strategy.

  • "Planning aquifer thermal energy storage" (ATES): In Beernink et al. (2022), agents are ATES systems which are characterized by the size and functions of the buildings they service. The size of the different ATES follows the energy demand of the buildings they are connected to. During start-up in Bloemendal et al. (2018), ATES operators initialize with their behavior (called agents). Each agent distinguishes by its size and behavior, indicative of ATES systems in the Netherlands.

  • "Microgrid only electricity—PV, Battery, household, building, substation": In all of the studies in this category, (Lovati et al. 2020; Fichera et al. 2020b), agents are used in comparable ways. The system includes household agents with PV generation and battery storage for electricity. A market agent is responsible for balancing different players at the local level. All of these studies investigate how to boost self-consumption while decreasing external power purchases. The studies Lovati et al. 2020 and Monroe et al. (2020) explicitly address peer-to-peer mechanisms.

  • "Microgrid electricity and heat": Haque et al. (2017) shows the model with separate device agents, like base load, PV, or heat pump, regulated by household agents. The network agent monitors the electrical and thermal side of the transformer and feeder agent. The network agent controls the entire system. Study Khalil and Fatmi (2022) uses household agents to represent the in-home and out-of-home activities during COVID 19 to analyze the energy demand for electricity and heat. In study (Shen et al. 2021), the Linear Upper Confidence Bound (LinUCB) approach trains a single agent for branch selection to detect the leaky branch of the heating grid using home data. In Hall and Geissler (2020), the market coordinator and the agents represent certain buildings. On every time-step basis, each building agent determines how to share its available flexibilities separately and autonomously. In Loose et al. (2020), every active component is an agent in the system for the electrical and thermal sides, which models the component's local behavior. Some agents pay to connect the two sectors (for example, CHP). Kremers (2020) uses a hybrid agent for simulating the real world by using a digital twin. The agents represent decentralized energy systems.

Table 3 in Appendix A1 gives a detailed overview of the implemented functions of the studies for the categories of Market Mechanism, Policies, User Behavior, Efficiency, and Method.

Result 2: agent-based modeling the mobility in neighborhoods

Since the electric grid infrastructure is considerably older than the recent and rise in electric vehicle use, it has to be substantially refurbished to accommodate battery-electric vehicles (BEV). The infrastructure, from local electricity generation and transportation to distribution via charging stations, must be reconsidered by improving the integration of battery-electric vehicles (BEV). Furthermore, vehicle-sharing models are becoming increasingly popular in highly populated places with limited parking space. We identified seven studies that relate to the mobility sector and have common features that allow grouping into thematic categories: "Park-and-Ride", "microgrid with battery electric vehicle", and "charging station and charging characteristics".

The studies in "Park-and-Ride" examine fleet sizes and waiting times in neighborhoods. The charging of battery electric vehicles with local PV power and the impact on the local grid are considered in the category "microgrid with battery-electric vehicle". The studies in the last category, "charging station and charging characteristics", look at the battery characteristic of an electric vehicle and analyze the charging behavior at the charging station (is shown in Table 2).

Table 2 Model overview of the selected studies for mobility

Having shown Model Purpose and Model Output of the reviewed papers pertaining to “Mobility” in Appendix Table 3, we now proceed to a description of the agent structure in those papers. We retain the thematic categories and follow the ODD protocol in our description. We retain the thematic categories and follow the ODD protocol in our description.

  • “Park-and-Ride”: (Zhou et al. 2019, 2021) use vehicle agents and user group agents and include empirical driving data to analyze the autonomous vehicle fleet usage

  • “Microgrid with battery-electric vehicle”: Local energy communities are particularly interested in integrating BEVs for demand-side management to improve self-power production through PV by limiting load consumption. It helps decrease their reliance on external electricity from the external grid and their energy expenses (Surmann et al. 2020; Xydas et al. 2016).

  • “Charging station and charging characteristics”: (Yagües-Gomà et al. 2014) examines battery deterioration as a function of usage and battery temperature in electric vehicles. Various vehicle types, including battery electric vehicles, plug-in hybrid electric vehicles, and electric motorcyclists, are mapped as agents for this purpose. Studies Lin et al. (2018) and Liu and Bie (2019) reveal how battery-electric cars charge at charging stations. As a result, the agents are the BEV and charging station types.

Table 4 in Appendix A2 offers a detailed overview of the implemented functions of the studies. The features group into Market Mechanism, Policies, User Behavior, Efficiency, and Method.

Result 3: agent-based modeling platforms

We also reviewed the platforms utilized for the experiments. Figure 2 shows that around half of the reviewed papers fail to specify the ABM platform they were operating. Of those who do indicate the platform, NetLogo is most used, it is common in the “Electricity and Heat” category. This is followed by artisoc 4.0, which is used for mobility studies. The other ABM platforms are only mentioned once.

Fig. 2
figure 2

Overview of the used agent-based modeling platforms in the studies

We say a few words about NetLogo because of the high number of mentions (Netlogo. 2022). According to the selected studies, NetLogo provides many interfaces to other platforms, such as Python, MATLAB, R, and Java. Additionally, data formats like GIS can be used by NetLogo. Because of its extensive range of functionalities, as shown by the accessible papers mentioned on the website (Netlogo. 2022). The publications range from 1999 through 2022, this ABM platform has been around for quite a long time. Version 6.2.2 is now available as a web application.

Lessons learned: findings and gaps in the literature

We find that ABMs are widely applied to various topics and intended to offer decision support to energy communities, energy companies, urban planners, and policymakers. Most of the studies in our review pertain to a specific local area that serves as a case study. The studies that look at specific areas use data collected by the authors and/or the locality (city) and make use of Geographic Information Systems (GIS). Here are a few examples of applications:

  • Heating transition: How are energy communities (associations of customers) formed? What conditions (infrastructure, economic, regulatory) let them choose specific technologies? (Wildt et al. 2021; Nava-Guerrero et al. 2021; Nava-Guerrero et al. 2022; Guerrero et al. 2019; Fouladvand et al. 2020)

  • Aquifer thermal energy storage (ATES): Topology and scale of new heat grids to exploit the heat storage potential of ATES? (Beernink et al. 2022; Bloemendal et al. 2018)

  • Mobility: What size is necessary for an autonomous car-sharing fleet to limit waiting times to 15 min? (Zhou et al. 2019, 2021)

Most of the reviewed studies deal with microgrids and local markets. Some studies show that balancing the local power grid becomes more complex with an increasing regional expansion of renewable energies. The external grid must help more with balancing the local imbalance (Monroe et al. 2020; Fichera et al. 2020a; Kuznetsova et al. 2015; Schiera et al. 2019; Bellekom et al. 2016). Thus, the question arises how to optimize the relationship between generation capacities, storage options, and flexible consumers in a local energy system. In addition to the heating sector, battery electric vehicles, in particular, could play a significant role in this balancing. In the mobility studies that we reviewed, the charging characteristics between regular and rapid charging are particularly evident (Lin et al. 2018; Liu and Bie 2019). For load balancing, fast charging offers high power that can be called up quickly on the load side, which can be used very well for local power balancing in the event of excess energy generation. It is particularly attractive when public charging stations can also benefit from the local electricity concept in addition to the classic charging stations in buildings. In addition to increasing the electric generation side, a more flexible management development of the load side would be promising. Prosumers who consume PV electricity themselves and sell electricity surpluses are essential in achieving climate protection goals.

Noteworthy in these studies is the structure of the agent-based model. The agents resemble each other but are given distinct functions depending on the subject of the study. For example, some studies are more concerned with peer-to-peer trading or increasing self-consumption when additional batteries are provided (Monroe et al. 2020; Fichera et al. 2020a), or local charging of BEVs (Surmann et al. 2020; Xydas et al. 2016). Depending on the research question, ABMs are equipped with different functionalities. Most studies contain a good description of the agents, which helped us to design a conceptual image for a modular agent-based model (see next chapter). The ABMs were built for relatively isolated questions. What still proves to be a challenge is the integrative view and treatment of the different sectors of an energy system—electricity, heat, and mobility.

The EU's goals for the energy sector—the expansion of renewable energies, the electrification of the heat supply, improving energy efficiency (Rat der europäische Union 2022), a rising share of BEV (Europäisches Parlament 2022), increasing energy prices (Eurpäischer Rat 2022)—pose new challenges for the entire energy system. The European association for the cooperation of transmission system operators for electricity (ENTSOE) charging scenario (Iliceto et al. 2021) shows that approximately one private charging station will be available for each BEV. In 2030, 135 million private charging stations with a power capacity of nearly 600 GW and about 400 TWh electricity consumption per year will be implemented. In addition, eleven million publicly accessible charging stations with a power capacity of 120 GW and almost 70 TWh of yearly electricity consumption are implemented. In sum, 146 Million charging stations with a power capacity of 720 GW and 470 TWh of yearly electricity consumption (Iliceto et al. 2021).

These high demands must always be covered by electric generation. In the event of an imbalance, the electricity system is at risk and must be balanced by the grid operator. Study Lin et al. (2018) shows that BEVs are most frequently charged at the residence and the workplace. It is apparent that energy planning for the neighborhood, including a whole-time approach for all sectors (building, electricity, heat, mobility), is essential. Planning must be integrated and consider buildings, the electricity transition, the heating transition, and the mobility transition as an integrative whole with interacting parts. In this approach, it is necessary for different disciplines, such as urban planners, energy planners, and architects, to share their knowledge to explore synergies, realizing economic, ecological, and social added value.

A high degree of expertise from various disciplines is needed for constructing meaningful and effective models. In particular, electrification for heat supply and mobility and local power generation from renewable energies, are primary local challenges that must be solved within neighborhoods. For this reason, an integrated planning approach is needed to consider all energy needs (households, building physics, electricity, heat, and mobility) and reconcile them with local generation. This integrated planning allows the external grid to be supported to achieve ambitious ecological goals at least cost (Rat der europäische Union 2022).

Agent-based modeling for flexible analyses in neighborhoods

Based on the findings and gaps, we present a system vision of an ABM (shown in Fig. 3) that can provide a holistic view of energy systems at the neighborhood level. This system vision is a consolidated agent-based model inspired by details of the reviewed studies. The aim is to provide a blueprint for ABMs in this domain which can be tailored toward specific research questions, and which also allows for extensions. The latter is necessary when initial findings must be further studied and investigated. E.g., when an initial study indicates the need for a policy adjustment, its impacts must be gradually examined and refined. This roundup is depicted in a conceptual diagram that indicates a generic agent structure. The system aims to map the analysis of energy communities and the effects of changes in external factors, of investment and policy decisions, on the different stakeholders, but also to conduct technical system analyses—a chosen modular approach for this purpose.

Fig. 3
figure 3

Conceptual image of an ABM for flexible energy system analyze of neighborhoods/local regions (own design inspired by the selected studies)

Most of the studies used a bottom-up model and different model types for their agents. The model types are the simulation, hybrid, optimization, and accounting model. In Mundaca et al. (2010) are the same model types described for ABM. In sketching our bottom-up ABM approach, we lean on Mundaca et al. (2010) and the implementation of the agents in the reviewed studies. Mundaca et al. (2010) is a study already 12 years old, but we found it very clear and helpful.

With the help of simulation models, it is possible to determine quantitative and qualitative statements for technical issues (usually called scenarios). Hybrid models connect the real with the simulated world and are a part of the simulation model. It is also used in the context of a digital twin, hardware, or even software in the loop tests. Optimization models find the best possible solutions by assuming technical, economic, and ecological parameters and technical restrictions. Accounting models contain simple mathematical functions and are mainly used for data preparation and evaluation (Mundaca et al. 2010).

For the doctoral thesis, we intend to analyze real as simulative neighborhoods. For this reason, our approach uses all four model types. Especially for the simulation and hybrid models, uniform communication interfaces must be established to implement basic applications and controls. This results in a multitude of agents in the energy system of a neighborhood, which contain different capabilities.

A building agent aggregates and coordinates various device agents, which belongs to a building. The device agents for the electricity side of the building are mainly households (electricity demand), PV, battery, and BEV. The agents for the thermal side of the building are mainly households (thermal demand), solar thermal, and heat storage. The energy system agents operate autonomously within the building. Buildings link to substation agents, which connect electricity or heat. Furthermore, the substation agents have maximum loads, and power interchange is limited. The substation agents link to the agents of the local energy system, which deliver electricity and heat. Additional heat storage and aquifer energy storage systems are supplied for the heat side to create more local flexibility. The substation agent provides another link to the external grid for electrical exchange. It is used to compensate for local grid electricity surpluses and shortages. The system operator agent is employed to control the other agents in the neighborhood.

On the one hand, the system operator agent attempts to execute predetermined energy schedules for the systems and control them as needed by using the flexibility of the neighborhood. The energy must be deposited with the energy market agent and a match between buyers and sellers must be realized. The scenario management agent creates the structure and parameterization of the simulation model. The optimization model is used to optimize the techno-economic aspects of the systems and is a separate agent that the system operator agent will activate. The simulation model will transmit Essential parameters to the optimization model. The data is expressed in an optimization problem and solved by a solver within the optimization model to produce system operation schedules for the energy system agent and local energy agent. The operating schedules return to the system operator agent. The accounting model is equation-based and relies heavily on empirical data derived from the simulation model. The accounting model is also an agent in the ABM and may be accessed by any other model’s agents. The accounting model agents use for (i) data preparation and (ii) data assessment (technical, ecological, economic, and legal implications). A uniform data source layer is created, allowing for straightforward parameterization and assessment of the agent-based model—the input data obtained from the reviewed studies. The input data are classified into technological-economic, socio-cultural, and environmental. The techno-economic data are technological aspects, market conditions, and policy intervention. The socio-cultural data provides social structure, time of use, and census data. GIS, meteorological, and topological data are used in the environmental data. A standardized output is supplied in addition to the standardized input. It employs standardized key indicators derived from simulation data and allows users to compare different scenarios quickly.

The ABM concept presented is to be developed through a doctoral thesis. The Ph.D. aims to analyze the effects of policies and local market mechanisms in neighborhoods. In particular, the consideration between an overall optimum and the optimum occurring between different interest groups. It is always assumed to find an overall optimum in most optimization models. However, if one considers different stakeholders, one quickly realizes that the stakeholders have other target criteria. For example, the utility aims to sell its energy to the customer in the long term and profitably, the grid operator has the task of ensuring a stable grid, and the energy community has socially sustainable, ecological, and economical energy use. For these interest groups, the main question is how do business models and interests change if the neighborhood has to become climate neutral by 2045? It is provided to be implemented in real-world neighborhoods. The implementation is planned to be modular and thus can be used as a construction framework principle to build up the needs of a real neighborhood. The analyzed studies help us to build the structure of the agents and to set up the input and output parameters. For the neighborhoods to be analyzed in terms of their development and changes over time, transformation paths must be deposited for all sectors. These transformation paths still need to be worked out.

Conclusion

In this paper, we present a literature review of the use of agent-based models (ABM) in analyzing of urban neighborhood energy systems. We derive a concept for an ABM that integrates all energy sectors: Electricity, heat, and mobility.

We conducted a systematic literature search: Using specific search terms, we searched the Scubos and mdpi databases and finally identified 33 studies that met our selection criteria (25 for electricity and heat, 7 for mobility). In evaluating these studies, we applied the ODD protocol: Firstly, explain the model purpose and output. Secondly, describe the agents and their interactions. Finally, give the implementation functions based on the selected criteria of the market mechanism, guidelines, user behavior, efficiency, and method.

The reviewed studies show the diverse use of ABM, ranging from political to economic, environmental, and technical issues. A particularly interesting phenomenon that offers high research potential, especially with an ABM approach, is energy communities: Groups of actors (residents, energy users, and prosumers) in a neighborhood that, for example, can share electricity from PV and batteries and merge the demand from households, heat pumps, and BEV locally to increase the degree of self-sufficiency. In addition, energy communities can cooperate in bringing about a heat transition.

While some of the reviewed studies explicitly address energy communities (Wildt et al. 2021; Nava-Guerrero et al. 2021, 2022), they do not deal with how energy communities are formed; nor how they could be expanded to include additional stakeholders like energy supply companies or local network operators. Especially these latter two could play a key role in the energy transition. The neighborhood energy community offers potential for new business areas. For example, the distribution grid operator could reduce the local grid expansion if he can operate the local grid optimally. A grid-friendly use of controllable local flexibility would be possible both for the local and the entire energy grid. The energy supplier would have the option of expanding his plant portfolio with renewable energy systems, offering (cheap) flexible tariffs to the final customer, and benefiting economically from the energy transition with the owners. The owner benefits financially from the energy transition and makes a significant ecological contribution. The complexity of the different local energy systems, the transformation of the heat supply, and the development of sustainable battery-electric mobility combined with the interests of the other stakeholders—which can also lead to different energy solutions—still represent a significant research gap.

It is precisely where our proposed ABM framework starts. We will address new market mechanisms for trading energy and energy services between energy communities and private companies at the local neighborhood level. How can energy communities meet local needs while at the same time supporting the overall energy system? This question is one of the most significant challenges for future ABM applications in the neighborhood's local energy system. The complexity of the decisions and interactions of the agents in an intelligent and distributed energy system needs to be further developed and scaled in an ABM concept. The transferability of the developed solutions to other quarters and the integration of existing quarters into integrated planning are further questions because neighborhoods' structures depend on several factors that must be investigated.

Availability of data and materials

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Abbreviations

ABM:

Agent-based modelling

ATES:

Aquifer thermal energy storage

BEV:

Battery-electric vehicle

CHP:

Combined Heat Power

CS:

Charging station

ENTSOE:

European Network of Transmission System Operators for Electricity

EU:

European union

LinUCB:

Linear upper confidence bound

ODD protocol:

Overview, design concepts, and details protocol

SLR:

Systematic literature review

References

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Acknowledgements

Special thanks to Rafael Wohlfahrt and Franziska Rathje, who helped with the discussion and proofreading. We acknowledge support for the article processing charge by the Open Access Publication Fund of Hamburg University of Applied Sciences.

About this supplement

This article has been published as part of Energy Informatics Volume 5 Supplement 4, 2022: Proceedings of the Energy Informatics.Academy Conference 2022 (EI.A 2022). The full contents of the supplement are available online at https://energyinformatics.springeropen.com/articles/supplements/volume-5-supplement-4.

Funding

This paper is funded by the authors’ affiliations. Cooperation between the HafenCity university and the applied science university of Hamburg.

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PV: Literature research, evaluation and presentation, Writing—original draft, editing, supervision; JS: Writing—review and editing; IP: Writing—review and editing; All authors read and approved the final manuscript.

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Correspondence to Petrit Vuthi.

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Appendices

Appendix

See Tables 3 and 4.

A1: Overview of the implemented functions for Result 1

Table 3 Overview of the implemented functions for an Agent-based modeling with an urban energy system

A2: Overview of the implemented functions for Result 2

Table 4 Overview of the implemented functions for an Agent-based modeling in neighborhoods mobility

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Vuthi, P., Peters, I. & Sudeikat, J. Agent-based modeling (ABM) for urban neighborhood energy systems: literature review and proposal for an all integrative ABM approach. Energy Inform 5 (Suppl 4), 55 (2022). https://doi.org/10.1186/s42162-022-00247-y

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  • DOI: https://doi.org/10.1186/s42162-022-00247-y

Keywords

  • Agent-based modeling
  • Urban neighborhood energy systems
  • Local energy market
  • Heat
  • Building
  • Mobility