“双碳”目标下云南省废弃矿山光伏-抽水蓄能发电站可行性分析

Feasibility analysis of PV-pumped storage power plants in abandoned mines in Yunnan province under the“Double Carbon”target

为助力“双碳”目标的实现以及对废弃、再生资源的循环利用,云南省利用矿山开采遗留下来的采空区建设清洁能源发电站符合现实需要。而在实际废弃矿山改造过程中,实现多元耦合开发利用模式,更有利于再生能源的渗透和维持电网的稳定运行。根据水光互补发电特性原理,结合云南省自然资源能源禀赋特征,从废弃矿山光伏-抽水蓄能电站工作原理及结构、关键技术、经济效益估算等几个方面论述云南省建设废弃矿山光伏-抽水蓄能发电站的可行性。分析结果表明,云南省已累计超过15亿m3的采空区及丰富的自然资源、能源为光伏-抽水蓄能电站建设提供了有利条件;且云南省近几年清洁电力的比重也在不断攀升,2022年,清洁电力的占比已达到87.7%;由废弃矿山光伏-抽水蓄能电站实例计算得出,该矿山每年可产生的电量收益达1.2亿元,按照设计年限20年计算,共计产出约24亿元的收益。综上所述,云南省废弃矿山光伏-抽水蓄能发电站建设优势较为显著。

In order to help achieve the goal of“Double Carbon”and the recycling of waste and renewable resources,the use of the mined-out areas left behind by mining to build clean energy power stations in Yunnan Province is in line with the practical needs of the country.In the actual process of transforming abandoned mines,the realization of multiple development and utilization modes is more conducive to the penetration of renewable energy and the maintenance of the stable operation of the power grid.According to the principle of water-optical complementary power generation,combined with the characteristics of natural resources and energy endowment in Yunnan Province,this paper discusses the feasibility of constructing abandoned mine photovoltaic-pumped storage power plant in Yunnan province from the working principle and structure of abandoned mine photovoltaic-pumped storage power plant,key technologies,and the estimation of economic benefits,and other aspects.The analysis results in show that Yunnan Province has accumulated more than 1.5 billion m 3 of mining area and rich natural resources,energy for the construction of photovoltaic-pumped storage power plants provides favourable conditions;and the proportion of clean electricity in Yunnan Province in recent years has also rising,and in 2022,the proportion of clean electricity has reached 87.7%;by the example of the abandoned mine photovoltaic-pumped storage power plant calculations,the mine can be generated annually by the amount of electricity Revenue amounted to 120 million yuan,according to the design life of 20 years,the total output of about 2.4 billion yuan of revenue.In summary,the advantages of constructing a PV-pumped storage power plant for abandoned mines in Yunnan Province are significant.