Construction Engineering and Management Department, King Fahd University of Petroleum and Minerals, Saudi Arabia.
Construction Engineering and Management Department, King Fahd University of Petroleum and Minerals, Saudi Arabia.
Waste Manag. 2017 Jan;59:90-101. doi: 10.1016/j.wasman.2016.09.030. Epub 2016 Oct 20.
Municipal Solid Waste (MSW) generation in Saudi Arabia is increasingly growing at a fast rate, as it hurtles towards ever increasing urban development coupled with rapid developments and expanding population. Saudi Arabia's energy demands are also rising at a faster rate. Therefore, the importance of an integrated waste management system in Saudi Arabia is increasingly rising and introducing Waste to Energy (WTE) facilities is becoming an absolute necessity. This paper analyzes the current situation of MSW management in Saudi Arabia and proposes a financial model to assess the viability of WTE investments in Saudi Arabia in order to address its waste management challenges and meet its forecasted energy demands. The research develops a financial model to investigate the financial viability of WTE plants utilizing gasification and Anaerobic Digestion (AD) conversion technologies. The financial model provides a cost estimate of establishing both gasification and anaerobic digestion WTE plants in Saudi Arabia through a set of financial indicators, i.e. net present value (NPV), internal rate of return (IRR), modified internal rate of return (MIRR), profitability index (PI), payback period, discounted payback period, Levelized Cost of Electricity (LCOE) and Levelized Cost of Waste (LCOW). Finally, the analysis of the financial model reveals the main affecting factors of the gasification plants investment decision, namely: facility generation capacity, generated electricity revenue, and the capacity factor. Similarly, the paper also identifies facility waste capacity and the capacity factor as the main affecting factors on the AD plants' investment decision.
沙特阿拉伯的城市发展迅速，人口不断增加，导致城市固体废物（MSW）的产生量也在迅速增长。同时，沙特阿拉伯的能源需求也在以更快的速度增长。因此，建立综合废物管理系统的重要性日益增加，引入废物能源化（WTE）设施已成为当务之急。本文分析了沙特阿拉伯目前的城市固体废物管理现状，并提出了一个财务模型，以评估沙特阿拉伯投资 WTE 的可行性，以应对其废物管理挑战并满足其预测的能源需求。该研究开发了一个财务模型，以调查利用气化和厌氧消化（AD）转化技术的 WTE 工厂的财务可行性。该财务模型通过一组财务指标，即净现值（NPV）、内部收益率（IRR）、修正内部收益率（MIRR）、获利指数（PI）、投资回收期、折现投资回收期、平准化电力成本（LCOE）和平准化废物成本（LCOW），提供了在沙特阿拉伯建立气化和厌氧消化 WTE 工厂的成本估算。最后，财务模型的分析揭示了气化工厂投资决策的主要影响因素，即：设施发电能力、发电收入和产能系数。同样，本文还确定了设施废物处理能力和产能系数是 AD 工厂投资决策的主要影响因素。
