Techno-economic feasibility analysis and optimisation of on/off-grid wind-biogas-CHP hybrid energy system for the electrification of university campus: A case study

IF 9 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2024-11-09 DOI:10.1016/j.renene.2024.121792

Ilter Sahin Aktas

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引用次数: 0

Abstract

This paper provides a comprehensive feasibility analysis of a hybrid energy system with different configurations to meet electricity and thermal load demand at the University of Southampton campus. The suggested hybrid energy system (HES) comprises wind turbine, biogas generator, battery, CHP natural gas-generator, thermal load controller, boiler, and converter and is simulated in Homer Pro software. In addition, a comparative analysis between stand-alone and on-grid HES is presented. The results indicate that the grid-connected HES is significantly more cost-effective, with a 45 % reduction in cost of energy (COE) and %15.5 decrease in net present cost (NPC) compared to the off-grid system, which amounts to 0.03359 $/kWh and 467M$, respectively. The grid-connected HES is not only more eco-friendly in terms of greenhouse gas emissions (GHG) and produces 19 % less emissions annually compared to the grid-independent system, but it also effectively achieves a positive return on investment (ROI) of %45 with 2.3 years of payback time. Considering the university's total emissions of 38.56 kT CO₂e, the proposed on-grid hybrid system has the potential to lessen GHG emissions by 91.2 %.

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用于大学校园电气化的并网/离网风能-沼气-热电联产混合能源系统的技术经济可行性分析与优化：案例研究

本文对不同配置的混合能源系统进行了全面的可行性分析，以满足南安普顿大学校园的电力和热负荷需求。建议的混合能源系统（HES）由风力涡轮机、沼气发电机、电池、热电联产天然气发电机、热负荷控制器、锅炉和变流器组成，并在 Homer Pro 软件中进行了模拟。此外，还对独立和并网 HES 进行了比较分析。结果表明，与离网式系统相比，并网式热电联产系统的成本效益明显更高，能源成本（COE）降低了 45%，净现值成本（NPC）降低了 15.5%，分别为 0.03359 美元/千瓦时和 4.67 亿美元。就温室气体排放量（GHG）而言，并网 HES 不仅更加环保，与独立电网系统相比，每年的排放量减少了 19%，而且还有效地实现了 %45 的正投资回报率（ROI），投资回收期为 2.3 年。考虑到该大学的二氧化碳总排放量为 38.56 kTe，拟议的并网混合系统有可能减少 91.2 % 的温室气体排放量。

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来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

期刊介绍： Renewable Energy journal is dedicated to advancing knowledge and disseminating insights on various topics and technologies within renewable energy systems and components. Our mission is to support researchers, engineers, economists, manufacturers, NGOs, associations, and societies in staying updated on new developments in their respective fields and applying alternative energy solutions to current practices. As an international, multidisciplinary journal in renewable energy engineering and research, we strive to be a premier peer-reviewed platform and a trusted source of original research and reviews in the field of renewable energy. Join us in our endeavor to drive innovation and progress in sustainable energy solutions.