Multi-dimensional Performance Evaluation Index Review of Integrated and Intelligent Energy

As an important form of energy internet industry development, integrated and intelligent energy (IIE) has become an important starting point for promoting the use of renewable energy, improving energy system efficiency, and reducing energy cost. However, at present, IIE demonstrates the characteristics of fuzzy concept boundaries, multi-agent games, heterogeneous energy flow coupling integration, and complex and diverse technical routes. Therefore, scientific, systematic, and operable performance evaluation is necessary theoretical guidance that ensures optimal IIE planning and design decision-making and the economic benefits of projects. Then, based on an IIE comprehensive evaluation system review, this study summarizes the multi-dimensional indicators of current IIE performance evaluation, taking the park or regional IIE as the object from four dimensions of energy utilization, environmental friendliness, economy and society, and comprehensive intelligence; the first is to define 41 quantitative and qualitative performance evaluation indicators, the calculation mode, and the forward and reverse indicator directions, whereas the indices are graphically classified and summarized. The second is to study and judge the differences in similar indicators, such as the renewable energy replacement, utilization, and penetration ratios, as well as specific application scenarios. It determines evaluation indicators that IIE should resolve around in the future, including the energy sustainability index and demand-side interaction. In this study, the non-inferior solution, normalization, weighting, and other architectural methods of the IIE performance evaluation system as well as the systematically described performance evaluation steps, and the IIE performance indicators are inspected from the aspects of academic research, industrial application, and standardization.