Study on Large New Energy Base Export Mode and Optimum Scale of Source and Storage

Affected by the regional difference of new energy resources and electricity load, large new energy bases need to be sent out through large-capacity and long-distance transmission mode. By studying the operation requirements of different transmission forms such as UHV DC, this paper puts forward a calculation scheme of source- storage ratio considering the proportion of new energy, the utilization rate of new energy and the utilization rate of channel. Finally, a typical case is selected for calculation, and the comprehensive landing electricity price of the new energy large base calculated by the calculation result is relatively low, and has a good market competitiveness.