A Low carbon Building-level Integrated Energy System Planning Method Considering Fuel Cell and Multiple Energy Storage Zuxun Xiong, Xinwei Shen, Qinglai Guo, Hongbin Sun

Abstract

To ameliorate the climate change which caused by environmental problems and achieve the carbon neutrality proposed by Chinese government in 2020, renewable energy like photovoltaic and wind power play an increasingly important role in energy consumption. To address the random fluctuation and insufficient consumption brought by renewable energy, integrated energy system (IES) is one of the solutions to cope with these problems. This study focuses on the planning problem of IES and proposes a planning model, which takes both minimum total costs and CO2 emission as the objectives. To further reduce the carbon emission, fuel cells (FC) which uses hydrogen as fuel to provide both electricity and heat, as well as multi-energy storage systems (ESS) are considered as options in IES planning. A real multi-energy office building in Shanghai, in which photovoltaic, multi-energy storage equipment, fuel cell, electric vehicle (EV) and other equipment are included as planning options, is used as numerical example to verify the effectiveness of proposed planning method for building-level IES. Moreover, the operation scenarios and functions of ESS in IES are analyzed.

Keywords Building-level integrated energy system, low carbon, fuel cell, energy storage system, optimal planning