储能科学与技术 ›› 2021, Vol. 10 ›› Issue (6): 2392-2402.doi: 10.19799/j.cnki.2095-4239.2021.0263

• 储能技术经济性分析 • 上一篇    下一篇

天然气发电与电池储能调峰政策及经济性对比

朱寰1(), 刘国静2, 张兴3, 岳芬3(), 俞振华3   

  1. 1.国网江苏省电力有限公司
    2.国网江苏省电力有限公司经济技术研究院,江苏 南京 210008
    3.中关村储能产业技术联盟,北京 100190
  • 收稿日期:2021-06-10 修回日期:2021-08-06 出版日期:2021-11-05 发布日期:2021-11-03
  • 作者简介:朱寰(1979—),男,硕士,高级工程师,从事储能、电网规划等方面的研究工作,E-mail:zhuh@js.sgcc.com.cn|岳芬,硕士,工程师,从事电力系统与储能研究工作,E-mail:fen.yue@cnesa.org
  • 基金资助:
    国网江苏省电力有限公司“规模化储能应用对电力系统发展影响关键问题研究”项目

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

摘要:

构建以新能源为主体的新型电力系统,意味着风电和光伏将成为未来电力系统的主体。新能源发电固有的随机性、间歇性、波动性使调峰问题日益突出。燃气电站和电化学储能由于可调范围大、响应速度快,未来有望成为重要的调峰资源。首先,梳理了各省天然气发电调峰、储能调峰相关政策和市场规则,从准入门槛、参与方式、申报价格等方面进行了对比分析;然后,基于平准化电力成本(LCOE)概念,详细分析了包含初始投资、运维检修、燃料成本在内的天然气发电调峰电站、储能电站成本构成;最后,以某省为例,对比燃气发电调峰和储能调峰经济性,定量分析了初始投资、利用小时数、燃料/充电成本等因素对平准化电力成本的影响。通过对比得出,随着成本的不断下降,未来在短时调峰方面,电池储能将比燃气发电调峰更有竞争力。

关键词: 电化学储能系统, 燃气发电, 调峰, 经济性比较

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

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