Abstract
New energy storage is essential to the realization of the “dual carbon” goal and the new power system with new energy as the main body, but its cost is relatively high and the economy is poor at present. This paper studies the levelized cost of new energy storage based on the whole life cycle perspective. Based on LCOE and learning curve methods, a new levelled cost estimation model and prediction model for energy storage are constructed. Based on the latest development status of electrochemical new energy storage, the levelized cost of energy of lithium-ion batteries, flow-aluminum batteries, and flow-zinc batteries were measured, the cost composition and proportion of various types of energy storage are analyzed, and on this basis, the levelized cost of lithium-ion batteries was predicted. Comparative analysis shows that the levelized cost per kilowatt-hour of lithium-ion batteries is the lowest. This article provides a certain reference for the construction and layout of energy storage on three sides of the source network and load.
Highlights
IntroductionEnergy shortages and pollution problems have become increasingly obvious
In recent years, energy shortages and pollution problems have become increasingly obvious
The ratio of the financial cost of the energy storage system to the cost of the energy storage system reaches 15%. It accounts for about 12% of the total cost [16]. 2.4 Residual value of energy storage When the life of each part of the energy storage system is exhausted, it needs to be treated in a harmless manner, and the capital invested is the disposal cost
Summary
Energy shortages and pollution problems have become increasingly obvious. Energy storage plays a key role in promoting the implementation of China's "emission peak and carbon neutrality" goals and ensuring the smooth construction of new power systems with new energy as the main body. It is an important support for ensuring the large-scale development of new energy and China's energy security[3]. New types of energy storage, such as electrochemistry, have the advantages of fast response speed, short construction period, and small development scale due to resource constraints They will play an important role in the construction of new power systems. It is necessary to analyze and predict the technical and economic costs of new types of energy storage such as electrochemistry, so as to study and judge the future cost changes and provide decision-making references for relevant stakeholders of the power system
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