Evolutionary Trend of Grid Functionalized Investment Structure under Composite Scenarios of New Power Systems

doi:10.11930/j.issn.1004-9649.202408042

Abstract

Abstract:

The construction of new power systems has accelerated the evolution of the form, technology, and functions of the power grid, thus enriching the functions of power grid investment. It is therefore necessary to further understand the functional needs of power grid investment, optimize the investment structure, and further support the transformation of the energy and power structure. This paper uses the system dynamics model to study the changing trends of various forms of the source-grid-load power system during the construction of the new power systems, clarifies the evolution trend of power grid infrastructure investment during the construction of the new power systems, and studies the quantitative evaluation method for investment scale to form a power grid investment demand system that can meet both the needs of traditional economic and social development and the needs of new energy rapid development.

Key words: power grid investment, structural evolution, system dynamics, investment demand system

LOU Qihe, LI Yanbin, LIU Zishang, XIANG Yue, JIN Xiao. Evolutionary Trend of Grid Functionalized Investment Structure under Composite Scenarios of New Power Systems[J]. Electric Power, 2025, 58(7): 207-216.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202408042

https://www.electricpower.com.cn/EN/Y2025/V58/I7/207

Figures/Tables 9

Fig.1 Functionalized investment demand system of power grid

Table 1 Scenario setting

情景	终端电能消费比重	需求响应比例	新型储能装机	新能源装机占比
BEA	中	中	中	中
LP	低	高	高	低
HP	高	低	低	高

Fig.2 Grid infrastructure investment stock flows

Fig.3 Trend of grid access investment and its share

Fig.4 Trend of power transmission investment and its share

Fig.5 Trend of power grid regulation investment and its share

Fig.6 Trend of grid load growth investment and its share

Fig.7 Trend of grid digitization investment and its share

Fig.8 Grid security investment and its share

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