New Energy Consumption Capacity Evaluation Method for Isolated Industrial Park Considering Flexible Load Regulation Ability

In the context of the global energy transition, China is promoting the synergistic integration of energy sources, grids, loads and storage through national strategic policies. This paper examines the challenges of integrating volatile new energy sources, such as wind and solar, into the grids of isolated industrial parks (IIPs). It proposes a model to assess and optimize the consumption capacity of these resources to balance energy production with grid demand effectively. Initially, a “resource-power” conversion model is developed to simulate the potential output of wind and solar installations, given the absence of direct connectivity to the grid in newly established IIPs. Then, with the optimization objective of minimizing the overall cost of isolated grid operation, the new energy consumption capacity of IIPs is evaluated, taking into account the actual operating constraints of thermal power units, the maximum new energy consumption that can be technically achieved, and the regulation potential of flexible load participation response to mitigate the impacts caused by fluctuations in new energy sources. Finally, based on the analysis of the actual operation data of the IIPs, the simulation results show that the IIP can be guided by adjusting the installed capacity parameters for planning the installed size of wind and solar in the IIP before connecting to wind and PV. Moreover, fully exploiting flexible load regulation ability can effectively improve the IIP's wind power consumption capacity, which can provide theoretical guidance for optimizing the IIP's scheduling and promoting new energy consumption.