4.7 Article

Coordination of commercial prosumers with distributed demand-side flexibility in energy sharing and management system

Journal

ENERGY
Volume 248, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2022.123634

Keywords

Flexible energy management; Distributed renewable sources; Battery storage; Thermal storage; Energy sharing

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Driven by advances in smart grid technologies, this paper develops a hierarchical energy management system for a commercial neighbourhood, enabling distributed prosumers to share energy and manage loads and storages. The study comprehensively analyzes the techno-economic-environmental impacts and shows the effectiveness and economic benefits of the P2P system.
Driven by advances in smart grid technologies, building prosumers have closer interaction in sharing energy and information towards net-zero energy communities with energy flexibility and smart readi-ness. Many studies have focused on transactive energy systems, whereas limited attention was paid to coordinated prosumer management involving electric and electro-thermal energy storages. In this paper, a hierarchical energy management system was developed for a commercial neighbourhood, where distributed prosumers can share their generation and batteries, and manage cooling loads and thermal storages, in subtropical Hong Kong. Several operational scenarios were formulated considering building-level and neighbourhood-level controls, to explore the synergies through peer-to-peer (P2P) sharing and demand flexibility. Techno-economic-environmental impacts were analysed comprehensively from the perspectives of the network, the utility, and each participant. Results show that by integrating the demand-side flexibility, the P2P system could use electricity more effectively and economically. The formulated P2P operation strategy utilising neighbourhood-level control minimised the operational cost by 24.6% and net equivalent CO2 emission by 7.1%, compared to the traditional peer-to-grid operation. The profit for each participant can be allocated by regulating the compensating price in the dynamic internal trading. The study provides prosumers energy-flexible and grid-friendly operation to facilitate the sustainability of the smart grid. (C) 2022 Published by Elsevier Ltd.

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