With the aggravation of environmental pollution and the overuse of fossil energy, a sustainable transition to using the low-carbon and clean energy is perceived to be an inevitable trend. The Beijing-Tianjin-Hebei, the Yangtze River Delta and the Pearl River Delta are the three most important economic circles in China. One purpose of energy transition in those Three Urban Agglomerations is to enable the energy system to have a higher share of clean energy. This paper introduces the current situation in terms of energy endowment, production and consumption in the three urban agglomerations, discusses the policy environment from the aspects of development planning, supporting mechanism and policy tools. We further analyse the barriers of the energy transition in the three urban agglomerations by using Institution-Economy-Technology-Behaviour (IETB) conceptual model. Through this research, we know that reducing the carbon emissions is a priority in energy transition and increasing the utilization of renewable energy has become the consensus in the three urban agglomerations. In addition, reasonable energy development policies can impel the energy investment and the technology innovation to accelerate energy transition. Moreover, in the designated “highly polluting” industry sectors, energy supply enterprises and energy-consuming enterprises establish green-development incentive mechanisms and adopt technological innovation in order to promote energy transition.

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China's power system driven by the ubiquitous power internet of things, a new operation mode—“multi‐station integration” (MSI) has emerged. The novel business model can improve the energy utilization efficiency and promote the cross‐border business integration. In some earlier studies, mainly focused on conceptual analysis of application scenarios and operation modes of MSI. However, quantitative analysis that measure MSI popularize remain under development. This article highlights the recent advance achievements in MSI of digital power grid regarding transformation of Chinese eight economic zones. From the perspective of spatial heterogeneity, the gravity model provides a framework for describing the spatial diffusion of MSI mode relative to eight economic zones (EEZ) in China. In addition, compared to conventional gravity model, this study improved four aspects of the basic spatial gravity model ‐ diffusion capacity, absorptive capacity, the gravitation coefficient, and economic distance. It is found that the spatial diffusion of MSI is subjected to eight economic zones interaction while the spatial heterogeneity is inevitable. Thus, the resulting represents a radial decline, with the three coastal economic zones as the center, gradually decreasing to the inland and western regions, especially for those coastal economic regions with large diffusion impacts. Meanwhile, we also discuss the advantages, impacts, and limitations of MSI spatial diffusion as valuable references for future development direction of MSI mode. Ultimately, some of future development recommendations for MSI emerging field is put forward.