Publication | Other papers | Potentiale, Bioenergiesysteme, Logistik

Power Systems in the context of district heating and cooling networks as an integrated energy system approach -Regulations and Business Cases within the IEA DHC Annex TS3

Kneiske T, Kallert A, Cronbach D, Yu Y, Schmidt D, Johannsen R, Sorknæs P, Muschick D, Ianakiev A, Svensson I, Schmidt R, Terreros O, Widl E

Published 2020

Citation: Kneiske T, Kallert A, Cronbach D, Yu Y, Schmidt D, Johannsen R, Sorknæs P, Muschick D, Ianakiev A, Svensson I, Schmidt R, Terreros O, Widl E. Power Systems in the context of district heating and cooling networks as an integrated energy system approach - Regulations and Business Cases within the IEA DHC Annex TS3. 48. CIGRE conference 2020. July 2020.

Abstract

Integrated energy systems 1 couples power systems, district heating and cooling (DHC), and gas grids, thereby enabling the storage and distribution of energy across different infrastructure types. Supply and demand follow different patterns in these different domains, which can lead to synergies in generation, storage and consumption, if planned and managed as one energy system. An integrated approach has the potential to increase reliability, flexibility and supply safety and efficiency. Moreover, network coupling increases local utilization of renewables, avoiding problems in the distribution networks, as well as transmission losses. In addition, hybrid energy networks are a promising opportunity to manage and mitigate temporal imbalances of supply and demand in energy systems with a high share of volatile renewables, mainly PV and wind energy. The IEA DHC Annex TS3 provides a holistic approach for designing and assessing hybridization schemes, focusing on the district heating and cooling (DHC) networks and considering both technical (system configuration, operational strategy) and strategic aspects (business models, regulatory frame). These aspects will be discussed within the framework of the IEA DHC Annex TS3 in order to promote the benefits of DHC networks in an integrated energy system. Furthermore we can establish a common direction for the development and implementation of hybrid energy concepts. The IEA DHC Annex TS3 will connect existing national and international projects and thus benefit from interdisciplinary experience and exchange. The primary result of the IEA DHC Annex TS3 will be a guidebook including:  Analyses of available technologies and synergies / application areas  An overview of international case studies including simulation scenarios 1 Different alternative notations can be found in literature, e.g. multi-energy networks, hybrid energy networks, sector coupling, multi-domain networks, cross energy systems. However, since no standard definition is available, those notations are used synonymously.

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