Study on the Scale of New Energy Economy driven by Pumped Storage Power Stations in the Hexi Region of Gansu Province
At present,the method for determining the capacity electricity price of pumped storage power stations has been further improved through a two-part electricity price system,but there is a lack of specific implementation rules for electricity prices,and the price sharing mecha-nism for pumped storage power stations to cooperate with new energy development has not been clearly defined.To resolve the price sharing mech-anism and mode of pumped storage power stations,this study takes the joint development of a pumped storage power station and new energy power station in the Hexi region as the starting point,adopts the integrated development method of"pumped storage power station+new energy power station"and studies the economic scale driven by pumped storage power stations under different abandonment rates and returns of new energy.The study result shows that the joint development of pumped storage and new energy is beneficial for regulating the capacity price of pumped storage power station,and the overall project is the most economical when the capacity of new energy is 3～4 times of the pumped storage capacity.The Hexi region is rich in new energy resources,and pumped storage power supplies the Gansu power grid while serving the consumption of new ener-gy.The reasonable way to divert capacity and electricity prices is to integrate with local new energy development,which can optimize resource al-location,enhance economic competitiveness,and jointly benefit all parties.The economical ratio of pumped storage to new energy development is about 1:3 to 1:4.This study provides ideas for the capacity price diversion modes for the subsequent approval and operation of pumped storage power stations in areas rich in new energy,and also provides reference for the reasonable scale of supporting pumped storage power stations in oth-er new energy bases in the"Three North"region.
Hexi regionpumped storage power stationnew energytwo-part priceeconomic scale
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