Integrated Intelligent Energy ›› 2022, Vol. 44 ›› Issue (9): 20-26.doi: 10.3969/j.issn.2097-0706.2022.09.003

• Integrated Energy System • Previous Articles     Next Articles

Researches on hydrogen storage peak-shaving technology for new power systems to achieve carbon neutrality

HAN Shiwang1(), ZHAO Ying2, ZHANG Xingyu1,*(), XUAN Chengbo1, ZHAO Tiantian1, HOU Xukai1, LIU Qianqian1   

  1. 1. Energy Research Institute of Shandong Academy of Sciences,Qilu University of Technology,Ji'nan 250014,China
    2. Hangzhou CHINEN Steam Turbine Power Company Limited,Hangzhou 310018,China
  • Received:2022-05-23 Revised:2022-08-10 Online:2022-09-25 Published:2022-09-26
  • Contact: ZHANG Xingyu E-mail:hsw550012621@163.com;xyzh@qlu.edu.cn

Abstract:

Economic development varies significantly in different regions of China.The resources reserves in western China superior to that in eastern China,but the economic situation is just the opposite.Renewable energy in the west cannot be totally consumed locally,and has to be transmitted to the east.Power generation is a common application way of renewable energy,but the operation is greatly affected by seasons and weather.Therefore,it is difficult to accurately predict the amount of electricity generated by renewable energy.The power grid system needs corresponding energy storage technologies and facilities to realize peak regulation,so as to reduce the waste of renewable energy and perform peak regulation.The mutual conversion between electricity and chemical energy of hydrogen and ammonia can achieve the purpose of energy storage and peak regulation.When the electricity is sufficient,the surplus electricity is stored by hydrogen production from water electrolysis and ammonia synthesis technology.On the contrary,the stored energy will be transmitted to the power grid from fuel cells and hydrogen power station when the power supply is insufficient.To achieve the "dual carbon" target,the ammonia synthesis and hydrogen storage technologies applied in the new power system are expounded,and the advantages of fuel cells and principles of ammonia transportation and combustion are discussed.Hydrogen and ammonia are proven to be practical,efficient,economic and environmental for the peak regulation of the new power system.

Key words: carbon neutrality, new power system, hydrogen storage, peak shaving, green hydrogen, green ammonia, ammonia combustion, renewable energy, water electrolysis for hydrogen production, fuel cell

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