The peak shaving in Ningxia mainly depends on coal-fired power units. With the rapid growth of new energy, the situation of peak shaving in Ningxia is more severe. Based on this background, starting from the improvement of the generation-grid-load-storage flexibility, an optimization model with the lowest total power generation cost of the power system as the goal is constructed, and the SPER_PROS system was used to simulate the operation of the region during The Fourteenth Five-Year Plan. Based on the above optimization model, eight typical scenarios that meet Ningxia peak shaving resources are constructed. Through calculation and analysis of these eight scenarios, it is concluded that system can reduce power abandoning of new energy by four aspects. They include depth peak load cycling of coal-fired generating units, the time-sharing peak-valley electricity price on the demand side, the DC line participating in peak shaving according to the sending end on grid side, adding energy storage. It also proposes a coordinated program based on The Fourteenth Five-Year Plan generation-grid-load-storage integrated peak shaving resources and related suggestions and measures to provide strong support for the future scientific development of Ningxia Power Grid.