Electric Power Replacement Modes And Application Methods Based On Wind And Solar Power Curtailment

August 15,2013,State Grid Corporation of China printed implementation plan of electric power replacement and proposed the new models of energy consumption which are using electricity instead of coal,using electricity instea d of oil and enhancing power grid construction in order to increase the proportion of electricity in the final energy consumption,promote the energy conservation and promote clean energy alternative.Implementing the electric power replacement strategy can reduce urban air pollution and solve the wind and solar energy curtailment,which is an important measure to transform the development of energy and implement the energy revolution.So,it is essential for solving wind and solar energy curtailment,optimizing energy structure and improving the level of the use of new energy.According to “Guidance on advancing electric power replacement”(NDRC Issue [2016] No.1054)issued by the National Development and Reform Commission and “the 13 th Five-Year plan for electric power replacement”,first of all,this paper analyzes the energy consumption structure of China and energy consumption characteristics of different users.After analyzing the characteristics of consumers,the paper researches on the development of the new energy and clears the causes of wind and solar energy curtailment and the urgency to carry out energy substitution.Secondly,this paper analyzes the connotation and policies of electric power replacement.Then,based on the theory of the whole life cycle and the critical electricity price,this paper uses two kinds of critical price models which one is operating cost analysis without considering the initial investment and another one is annual cost analysis method with considering initial investment based on life cycle.Taking G Province as an example,we compare the calculating critical sales price with the current electricity price in the fields of building heating,manufacturing,transportation,and residential electricity consumption through the two methods.Thirdly,this paper puts forward the “2+3+6” overall mode of promoting electric power replacement from the economic point of view of reducing the investment cost and operating cost based on the cash flow of the equipment life cycle.And then,we put forward specific electric power replacement modes for different users in fields of building heating,manufacturing,transportation and power supply and consumption.At last,this paper constructs the mechanism of “subject + element + time + space” to promote the dissipation of new energy from the perspective of different social subjects,such as government,power grid company,new energy power generation enterprise and so on.