Feasibility Study On 110 KV Line Project Of Changzhou Salt Cave Power Station

The electric power industry is related to the national economy and the people’s livelihood,and is a key industry supporting scientific and technological progress and social prosperity.In order to meet the increasing demand for electricity consumption,China has injected a large amount of funds into the construction of power infrastructure,and the scale of investment in the power industry has expanded rapidly.Under the background of the national energy strategy,more renewable energy power generation projects have been put into operation during the 12 th Five-Year Plan period in China.However,related projects are prone to problems such as absorption difficulties and serious wind and light abandonment due to the inherent intermittence of renewable energy.The project investment efficiency is low and cannot effectively adjust the peak-valley difference of China’s power grid.Under such a realistic background,vigorously developing the energy storage industry has become the new strategic direction of the country.In 2018,the State Energy Administration approved the establishment of China’s first national demonstration project in the field of compressed air energy storage-the CNSIG Jintan Salt Cavern compressed air energy storage national experimental demonstration project.This project means both great opportunities and great challenges.How to design more scientific and reasonable technologies and programs and ensure that all indexes of the project are practical has become a key problem for project managers.In view of this,in order to ensure the successful landing of the salt cavern compressed air energy storage national experimental demonstration project and to maximize the investment efficiency of the project,it is particularly necessary to carry out scientific,rigorous and detailed feasibility study on this project,and to deeply analyze the technical feasibility,economic rationality and construction possibility of the project scheme.On the basis of combing the related theories of the existing literature research and feasibility study,this paper forecasts the electricity load of Changzhou in the nexteight years and summarizes the necessity of the project construction in combination with the general situation of the project and the current situation of Changzhou power system.From the perspective of technical feasibility,economic feasibility and social and environmental feasibility of the project,the feasibility of the line project is demonstrated.The feasibility study is comprehensively evaluated by expert opinion method,analytic hierarchy process and fuzzy comprehensive evaluation method.The research found that the project has sufficient construction necessity;The route design,hydrogeological conditions along the route,iron tower and foundation construction scheme and electrical engineering scheme of the technical scheme have high technical feasibility.The net present value of the project is greater than zero,the internal rate of return is greater than the industry benchmark rate of return,and the static and dynamic payback periods of investment meet the requirements,thus having higher economic feasibility.The project is of great industry demonstration significance and plays an important role in promoting the local economy.At the same time,the project construction meets the requirements of environmental review and has high social and environmental feasibility.The results of the comprehensive feasibility evaluation show that 43% of the experts think the feasibility study of the line project is " excellent" and 33% of the experts think the feasibility study of the line project is "good".Therefore,on the whole,the project is feasible.