Energy Storage Science and Technology ›› 2021, Vol. 10 ›› Issue (6): 2392-2402.doi: 10.19799/j.cnki.2095-4239.2021.0263

• Technical Economic Analysis of Energy Storage • Previous Articles     Next Articles

Policy and economic comparison of natural gas power generation and battery energy storage in peak regulation

Huan ZHU1(), Guojing LIU2, Xing ZHANG3, Fen YUE3(), Zhenhua YU3   

  1. 1.State Grid Jiangsu Electric Power Company
    2.State Grid Jiangsu Economic Research Institute, Nanjing 210008, Jiangsu, China
    3.China Enery Storage Alliance, Beijing 100190, China
  • Received:2021-06-10 Revised:2021-08-06 Online:2021-11-05 Published:2021-11-03

Abstract:

Constructing a new power system with new energy as the main body means that wind power and photovoltaic will become the main body of the future power system. Peak shaving problems will become more prominent due to the inherent randomness, intermittentness, and volatility of new energy power generation. The gas power station and electrochemical energy storage are expected to become an important peak shaving resource in the future due to their large adjustable range and fast response speed. First, the relevant policies and market rules of natural gas power generation peak shaving and energy storage peak shaving in various provinces were sorted out, and a comparative analysis was conducted in terms of entry barriers, participation methods, and declared prices. Second, a detailed analysis of the cost composition of energy storage power stations, including initial investment, operation and maintenance, and charging costs, is performed using the concept of levelized cost of electricity (LCOE). Finally, using a province as an example, compare the economics of gas-fired power generation peak shaving versus energy storage peak shaving, including a quantitative analysis of the initial investment, utilization hours, fuel/charge cost, and other factors influencing electricity costs. In comparison, as the cost of energy storage continues to fall, short-term peak shaving will become more competitive in the future than gas-fired power peak shaving.

Key words: battery energy storage system (BESS), gas power generation, peak regulation, economic comparison

CLC Number: