绿色工业园区供能技术方案及经济性分析

Power supply technology and economic analysis of green industrial park

工业园区是经济发展的重要载体,园区的生产活动需要大量的能量供给,因此可靠、经济的供能技术是高耗能产业运行的重要保障。首先对当前主要供能方式的系统结构与运行特性进行分析,包括自备电厂、大电网购电、孤岛模式微电网和并网模型微电网;然后综合经济性、可靠性和环境效益,建立了供能技术评价指标体系;最后,以某电解铝生产园区为实际算例,分析4种供能方式在工业园区应用中的经济性表现,并综合未来碳价格和储能成本的发展趋势进行敏感性分析,可为工业园区投资者和相关政策制定者提供决策参考。

Industrial parks play an important role in promoting economic development.Within them,the production activities require huge amount of energy and thus a reliable and cost-effective power supply technology is needed to guarantee the operation of energy-intensive industries.This paper analyzes the system structures and operation characteristics of the current main power supply modes,including self-contained power plant,power grid purchasing,isolated island microgrid and grid connected microgrid.The evaluation index system of power supply technology is built based on cost effectiveness,reliability and environmental benefits.Finally,taking an electrolytic aluminum production park as an example,this paper analyzes the cost-effectiveness of the above four power supply modes in industrial parks.And the sensitivity analysis of future carbon price and energy storage cost is also conducted.Our results may provide some references for industrial park investors and relevant policy makers.