Consequences for district heating and natural gas grids when aiming towards 100% electricity supply with renewables

Kusch, Wolfgang; Schmidla, Tim; Stadler, Ingo

doi:10.1016/j.energy.2012.06.054

Cited by 17 publications

(8 citation statements)

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“…For that reason, our approach has to be extended for industrial and commercial areas with particularly high load density. Therefore, heating grids have to be integrated in the model, as they are economically attractive in high-density building stock [76,77]. Furthermore, we have not considered the usage of renewable gases and hydrogen in the future energy system (our assumption: CO 2 footprint in grid-bound gas supply remains unchanged on the initial level).…”

Section: Discussionmentioning

confidence: 99%

Interdependencies of Infrastructure Investment Decisions in Multi-Energy Systems—A Sensitivity Analysis for Urban Residential Areas

et al. 2021

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Considering the European Union (EU) climate targets, the heating sector should be decarbonized by 80% to 95% up to 2050. Thus, the macro-trends forecast increasing energy efficiency and focus on the use of renewable gas or the electrification of heat generation. This has implications for the business models of urban electricity and in particular natural gas distribution network operators (DNOs): When the energy demand decreases, a disproportionately long grid is operated, which can cause a rise of grid charges and thus the gas price. This creates a situation in which a self-reinforcing feedback loop starts, which increases the risk of gas grid defection. We present a mixed integer linear optimization model to analyze the interdependencies between the electricity and gas DNOs’ and the building owners’ investment decisions during the transformation path. The results of the investigation in a real grid area are used to validate the simulation setup of a sensitivity analysis of 27 types of building collectives and five grid topologies, which provides a systematic insight into the interrelated system. Therefore, it is possible to identify building and grid configurations that increase the risk of a complete gas grid shutdown and those that should be operated as a flexibility option in a future renewable energy system.

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Section: Discussionmentioning

confidence: 99%

Interdependencies of Infrastructure Investment Decisions in Multi-Energy Systems—A Sensitivity Analysis for Urban Residential Areas

et al. 2021

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“…A microgrid modelling approach was used to minimise daily operational costs in their ploy-generation microgrid at the Savon Campus of Genoa University [37]. In a feasibility study, a virtual power plant approach is used to assess the feasibility of power balancing in an electricity grid consisting solely of renewable energies with CHP-plants, heat pumps and thermal storage [38].…”

Section: Multi-energy-systemsmentioning

confidence: 99%

Modelling Grid Constraints in a Multi-Energy Municipal Energy System Using Cumulative Exergy Consumption Minimisation

et al. 2020

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Efficiency measures and the integration of renewable energy sources are key to achieving a sustainable society. The cumulative exergy consumption describes the resource consumption of a product from the raw material to the final utilisation. It includes the exergy expenses for energy infrastructure as well as the imported energy. Since consumers and renewable potentials are usually in different locations, grid restrictions and energy flows have a significant impact on the optimal energy system design. In this paper we will use cumulative exergy minimisation together with load flow calculations to determine the optimal system design of a multi-cell municipal energy system. Two different load flow representations are compared. The network flow model uses transmission efficiencies for heat, gas and electricity flows. The power flow representation uses a linear DC approximated load flow for electricity flows and a MILP (mixed integer linear programming) representation for heat and gas flows to account for the nonlinear pressure loss relation. Although both representations provide comparable overall results, the installed capacities in the individual cells differ significantly. The differences are greatest in well meshed cells, while they are small in stub lines.

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“…Another aspect widely investigated is the coordinated development of infrastructures in the cross-sectoral use of energy. Kusch et al [77] proposed a virtual power plant model based on an integrated layout including decentralised CHP systems and heat pumps, as well as heat storages. Future scenarios involving low-energy or passive buildings and high penetration of wind power, were examined.…”

Section: Power-to-heat and The Transition From "Smart Grids" To "Smart Energy Systems"mentioning

confidence: 99%

Sustainable and cost-efficient energy supply and utilisation through innovative concepts and technologies at regional, urban and single-user scales

Piacentino

Duić

Markovska³

et al. 2019

Energy

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The environmental impact of the energy sector and the security and economics of energy supply and utilization have been raising increasing concerns, stimulating the search for innovative solutions for a sustainable use of resources. This article provides an overview of published research in this area, with a focus on papers contributed in special issues of leading journals dedicated to the series of Conferences on Sustainable Development of Energy, Water and Environment Systems (SDEWES), including the articles in the current special issue. Based on this review, research trends are identified and achievements supporting the energy transition are highlighted. The studies that focused on regional or urban energy planning have aimed at (a) increasing penetration of renewable energy sources, (b) optimizing the mix of centralized and distributed technologies (c) introducing additional flexibility in the power sector and d) identifying solutions for sustainable heating. Conversely, researches focused on individual plants or users have targeted the development of technologies for efficient energy use in industry and buildings, with emphasis on multigeneration and waste heat utilisation. The analysis highlights that future scenarios based on sustainable energy systems are viable, although their implementation will require further efforts by researchers and investors and active involvement of consumers.

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Consequences for district heating and natural gas grids when aiming towards 100% electricity supply with renewables

Cited by 17 publications

References 1 publication

Interdependencies of Infrastructure Investment Decisions in Multi-Energy Systems—A Sensitivity Analysis for Urban Residential Areas

Interdependencies of Infrastructure Investment Decisions in Multi-Energy Systems—A Sensitivity Analysis for Urban Residential Areas

Modelling Grid Constraints in a Multi-Energy Municipal Energy System Using Cumulative Exergy Consumption Minimisation

Sustainable and cost-efficient energy supply and utilisation through innovative concepts and technologies at regional, urban and single-user scales

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