供电局储能系统经济性分析

Economic Analysis of Energy Storage Systems Invested by a Power Supply Bureau

对比分析各类储能系统,选择出适合南山供电局投资的储能系统类型,然后采用贴现现金流分析法分析储能系统的各类成本及效益,最后通过算例对所选的储能系统进行经济性评价,并提出可行的盈利模式。评价结果表明,磷酸铁锂电池、三元锂电池和铅炭电池储能系统适合南山供电局投资建设,在年利率为5%的情况下,两类锂电池储能系统经济性略好于铅炭电池储能系统,均能在6年内回收投资成本并实现盈利。

In order to study the economy of ESSs, contrastive analyses were done to choose the suitable types of ESSs for Nanshan Power Supply Bureau. Afterwards, the construction costs, operation and maintenance costs, replacement costs and various benefits were analyzed by discounted cash flow approach. Finally, economic evaluations of the chosen ESSs were done through an example and feasible profit models were presented. The results show that, the LiFePO4 battery, the NCM/NCA battery and the Pb-C battery are the suitable ESSs for Nanshan Power Supply Bureau. At an annual rate of 5%, two kinds of Li-Ion battery ESSs have better economy than Pb-C battery ESSs. All of them can recover the investments and make profits in 6 years.