Ai, X. and Zhao, L., 2021. Comprehensive evaluation of power grid planning in coastal regions of China in the context of power internet of things (PIoT). Journal of Coastal Research, 37(4), 761–770. Coconut Creek (Florida), ISSN 0749-0208.

With the proposal and promotion of the concept “New Infrastructure Construction” in China, the construction of Power Internet of Things (PIoT) has become one major task of China's power grid development. Coastal regions have the characteristics of developed economy, high electricity demand, and variable climate, which are the focus of power grid construction. Hence, the construction of PIoT has put forward new requirements for power grid planning in coastal regions, and a comprehensive evaluation of power grid planning must be performed. However, the existing power grid evaluation index system cannot meet the comprehensive requirements of PIoT. Moreover, the current comprehensive evaluation method cannot solve problems on similar correlations and cannot perform dynamic prediction. This study proposes a comprehensive evaluation method for power grid planning in coastal regions in the context of PIoT. This method uses the requirements for developing PIoT as a criterion in constructing a seven-dimensional index system with 30 indexes. It also adopts the matter element analysis model, which can obtain more accurate correlations and change the evaluation method from static to dynamic. Taking a coastal province as an example, this paper performs comprehensive evaluation of current situation, development trend, and weak links of power grids and has satisfactory evaluation performance and prediction effect. It also proved that this method can clarify key points for improving and establishing development policies and provides guiding significance for power grid planning in coastal regions.