An optimal home energy management system for modulating heat pumps and photovoltaic systems

Langer, Lissy; Völling, Thomas

doi:10.1016/j.apenergy.2020.115661

Cited by 53 publications

(32 citation statements)

References 21 publications

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“…In this study, we consider a network of three user types, see Figure 2. The underlying home energy management systems are based on the study of Langer and Volling (2020) [30]. We model identical representative residential buildings with modulating air-sourced heat pumps (hp), as well as thermal storage systems for floor heating ( f h) and hot water (hw).…”

Section: Model Formulationmentioning

confidence: 99%

“…All market participants have the same exogenous electricity, floor heating, and hot water demand (see dotted frames in Figure 2). The demand is modeled based on a representative German household, see details in [30]. Additional endogenous demand is introduced by the BESS (in case of the prosumager) and thermal storage devices (for all participants).…”

Section: Model Formulationmentioning

confidence: 99%

“…The buildings are connected to the power grid (gr), enabling unlimited supply in addition to the P2P trading volume. Technical specifications are explained in greater detail in [30]. However, in this study, we chose a slightly smaller BESS, which is more common in Germany, because of the regulatory upper bound of 10 kWh battery capacity-smaller units avoid the EEG surcharge.…”

Section: Model Formulationmentioning

confidence: 99%

“…Fischer et al (2017) [31] show, however, that especially short term demand and generation-in our case 36 h-can be predicted with high accuracy, due to the strong correlation between succeeding days. Data sources are given in Table A5 and explained in greater detail in [30]. Tariff and price components are known to the model and explained in greater detail in Section 4.1.…”

Section: Model Formulationmentioning

confidence: 99%

“…We describe the model components in detail in the following sections. Data inputs, parameter settings, and technical specifications are detailed in [30].…”

Section: Model Formulationmentioning

confidence: 99%

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An Optimal Peer-to-Peer Market Considering Modulating Heat Pumps and Photovoltaic Systems under the German Levy Regime

Langer

2020

Energies

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The European Commission calls for more small-scale renewable energy producers to actively participate in the energy value chain. In this study, we model an illustrative peer-to-peer (P2P) market with tariffs based on the reservation prices of market participants under the German levy regime. The study is conducted by modeling representative residential buildings with home energy management systems, modulating heat pumps, and photovoltaics, in combination with electrical and thermal storage systems. The resulting mixed-integer linear program is solved over the course of a year, using a rolling horizon approach with a time resolution of one hour. By analyzing the cost- and discomfort-minimizing behavior of the market participants, we evaluate the current levy regime and propose two additional designs. We find that in the current case, a P2P market is not economically viable. Based on feed-in tariffs (FiT) and levies no agreeable market price can be found. With no FiT or reduced levies, all participants benefit from the P2P market. The market split—where each household sources their energy from—is altered only little by the specific details of the market design when staying in the agreeable price range. As prosumagers do not consume on the P2P market, they benefit only marginally from the reduced levies—consumers are most affected. Adjusting the regime could be a measure to rebalance the distribution of renewable energy benefits towards consumers in order to foster social cohesion. Our input data and the model written in the Julia JuMP programming language are available in an open-source format.

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Section: Model Formulationmentioning

confidence: 99%

Section: Model Formulationmentioning

confidence: 99%

Section: Model Formulationmentioning

confidence: 99%

Section: Model Formulationmentioning

confidence: 99%

“…We describe the model components in detail in the following sections. Data inputs, parameter settings, and technical specifications are detailed in [30].…”

Section: Model Formulationmentioning

confidence: 99%

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An Optimal Peer-to-Peer Market Considering Modulating Heat Pumps and Photovoltaic Systems under the German Levy Regime

Langer

2020

Energies

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Advancements in Battery Cooling Techniques for Enhanced Performance and Safety in Electric Vehicles: A Comprehensive Review

Rallabandi,

Issac Selvaraj

2024

Energy Tech

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The automotive industry is transitioning toward electric vehicles (EVs) to control fossil fuel dependence, reduce CO2 emissions, and mitigate pollution. EVs powered by lithium‐ion batteries (LIBs) have gained significant popularity due to their low operational costs and high energy density. Despite the substantial popularity of EVs powered by LIBs, their widespread commercial deployment has been impeded by challenges associated with operating temperatures. These temperature variations can adversely affect battery performance, degradation, and safety, posing hurdles to overcome for their efficient integration into vehicles. To address these issues, the development of high‐performance effective cooling techniques is crucial in mitigating the adverse effects of surface temperatures on battery cells. This review article aims to provide a comprehensive analysis of the advancements and enhancements in battery cooling techniques and their impact on EVs. It explores various cooling and heating methods to improve the performance and lifespan of EV batteries. It delves into suitable cooling methods as effective strategies for managing high surface temperatures and enhancing thermal efficiency. The study encompasses a comprehensive analysis of different cooling system designs with innovative approaches. Furthermore, this article outlines future research directions and potential solutions for developing battery cooling systems in electric and hybrid electric vehicles.

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Overview of the current state of research on characteristics and algorithms of energy management systems in households and buildings

Schminke

2021

Intl J of Energy Research

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The decentralization of energy supply and the fluctuating feed-in from renewable energies lead to an increasing need to generate electricity and heat locally and efficiently. Therefore, different energy systems are used together at building level. Consequently, energy management systems (EMSs) in the building sector and households are becoming increasingly complex and are facing new challenges. To face these challenges, EMSs are required to enable efficient and combined operation of multiple energy systems and components. The increasing research into EMS is leading to a growing field of research with different characteristics, objectives, and algorithms. However, the resulting diversification of the research topic is accompanied by a lack of transparency. Therefore, this article is the first to provide a comprehensive quantitative evaluation of the state of research. For this purpose, 98 relevant publications are quantitatively evaluated. This article focuses on methods, model characteristics, optimization objectives, price structures, observation horizon, and components and devices used of EMS. The detailed evaluation of these topics creates a high level of transparency in EMS research to provide precise insights into current research priorities and potential weaknesses, to allow researchers to classify their own work and to identify potential research topics. Highlights• For the first time, a quantitative study on EMS research is presented • The evaluation of 98 relevant publications provides detailed insights • Insights about methods, characteristics, objectives, prices, horizons, and components • Detailed graphical evaluations for each sub-area of the study K E Y W O R D S energy price structures, energy management systems in buildings, optimization goals, overview

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An optimal home energy management system for modulating heat pumps and photovoltaic systems

Cited by 53 publications

References 21 publications

An Optimal Peer-to-Peer Market Considering Modulating Heat Pumps and Photovoltaic Systems under the German Levy Regime

An Optimal Peer-to-Peer Market Considering Modulating Heat Pumps and Photovoltaic Systems under the German Levy Regime

Advancements in Battery Cooling Techniques for Enhanced Performance and Safety in Electric Vehicles: A Comprehensive Review

Overview of the current state of research on characteristics and algorithms of energy management systems in households and buildings

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