| Summary: | Energy consumption in the agricultural sector is significant, reaching 20% of the total energy consumption in China. Agricultural Energy Internet, an important extension of Energy Internet in the agricultural field, significantly contributes to agricultural modernization. Key technologies of Agricultural Energy Internet are vital factors supporting its development. This article systematically reviews the key technologies of Agricultural Energy Internet for two areas: agriculture and fishery. The working mechanisms and power consumption characteristics of some state-of-the-art new-energy agricultural intelligent equipment are described. In addition, the principles and profit methods underlying the agro-industrial complementary operation model are introduced. Moreover, against the Agricultural Energy Internet background, the development trends of some state-of-the-art new energy agricultural intelligent equipment, agro-industrial complementary, and carbon–neutral technology are proposed in this paper, providing novel perspectives on the promotion of the development of Agricultural Energy Internet and related technological innovation research. An unmanned farm is the main form of the future agricultural system, which is powered by the Agricultural Energy Internet based on smart agriculture and a smart grid. It will become the inevitable trend of modern agriculture to replace oil agriculture with electric farms. The electricity in farming is mainly generated by renewable energy. Renewable energy power generation has low carbon emissions and is the future direction for the development of agricultural energy systems. In addition, the Internet of Things will be further strengthened to realize automation and intelligence of agricultural energy systems.
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