Analysis of heat storage technologies and business model in the peak regulation of power grid

• Published in: Zhejiang Dianli Vol. 43; no. 2; pp. 105 - 114
• Main Authors: YAO Wenzhuo, ZHANG Kang, CHEN Mengdong, MA Meixiu, KANG Wei, CHEN Siyi, HAN Gaoyan
• Format: Journal Article
• Language: Chinese
• Published: zhejiang electric power 01.02.2024
• Subjects: ancillary service; business model; electricity market; power grid peak regulation; thermal storage technology
• ISSN: 1007-1881
• DOI: 10.19585/j.zjdl.202402012

The conventional operation mode of “power determined by heat” employed by thermal power plants， along with the randomness and volatility of new energy power generation， constrains the peak regulation capacity. The incorporation of thermal storage technology into grid peak regulation can optimize the allocation capacity of the energy system. The fundamental principles， appropriate materials， advantages， disadvantages， and future development trends of three different thermal storage technologies， namely， sensible heat storage （SHS）， latent heat storage （LHS） and chemical energy storage （CES）， are introduced. Furthermore， the strategies of different thermal storage technologies for power system peak regulation at home and abroad as well as the applications of actual peak regulation projects are discussed. Given the special working conditions faced by thermal storage technology in power grid peak regulation， four critical evaluation criteria， including safety， performance matching， reliability and economy that mu