Multi-objective sizing and dispatch for building thermal and battery storage towards economic and environmental synergy

Min Gyung Yu, Bowen Huang, Xu Ma and Karthik Devaprasad

Applied Energy, 2024, vol. 372, issue C, No S0306261924012029

Abstract: The role of building thermal and battery storage is pivotal in advancing smart cities and achieving sustainability goals through effective energy management. Despite their significance, there are several limitations in the sizing approach and value stream analysis with various objectives for their widespread adoption in buildings. This work proposes a flexible and scalable multi-objective optimization framework for optimal sizing and dispatch of building thermal and battery storage, addressing multiple objectives simultaneously using mixed-integer linear programming. The weighted-sum method is adapted, combining multiple objectives into a single function. The two-stage procedure iterates over different weights, generates optimal solutions, and forms the Pareto front. Case studies are performed to assess the energy, economic, and environmental benefits of building energy storage systems for a large office building in three climate locations. The results demonstrate that the proposed framework efficiently determines optimal sizing and dispatch strategies, addressing the balance between economic viability and emission reduction. The dynamic relationship between time-of-use energy charges and emission factors leads to diverse strategies based on whether economic or environmental concerns are prioritized. This research enhances our understanding of the benefits of thermal and battery storage systems in buildings, providing valuable guidance to stakeholders.

Keywords: Multi-objective optimization; Optimal sizing; Optimal dispatch; Building energy storage systems (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.apenergy.2024.123819

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