Abstract: With the advancement of the construction process of new power systems, the problem of insufficient local consumption capacity in the northwest region has become prominent. After considering the requirements of local power and hydrogen energy needs, a new energy external transmission and consumption prediction system dynamics model was constructed. First, starting from the development potential of new energy, the characteristics of electricity consumption in various industries, and the characteristics of hydrogen consumption in various fields, we divided the new energy outsourcing prediction system into three subsystems, namely, new energy, electric power load and hydrogen energy load, and constructed wind power and photovoltaic, respectively. New energy development potential prediction models include hydrogen energy load prediction models in the four fields of industry, electricity, heat, and transportation, and electric power load prediction models covering primary industry, secondary industry, tertiary industry, and urban and rural domestic electricity consumption. Secondly, the three subsystems and their interactive relationships and feedback mechanisms with the scale of new energy delivery were clarified, and a new energy delivery prediction system dynamics model was formed. Finally, taking the Gansu region as an example, we analyzed manpower, investment, transportation and hydrogen storage. Four development models are used to conduct scenario analysis that affects the scale of new energy delivery. The results show that, under the human-oriented and investment-oriented models, the scale of new energy delivery in 2030 will increase by 83.9% and 91.5%; moreover, driven by transportation demands and hydrogen storage demands, the scale of new energy delivery in 2030 will decrease by 6.8% and 12.2%.