| In recent years, China’s rapid economic development, as the basic industry of the national economy, the power industry in the development of the national economy has played a supporting role more and more obvious. The state has also accelerated the power construction in time, adjusting the power development plan, in order to solve the difficult situation of China’s electricity market. Makes the country and the provinces and cities in response to the national call for increased power investment, construction, construction of power plants. In this context, the state Power Grid Corp has also accelerated the construction of power grid projects. Due to the difficulty of construction of electric power engineering, huge investment, so it can meet the demand and price of engineering products, is particularly important in the expected to give full play to its function, so as to provide guarantee for the sustainable growth of national economy. As Kezuohouqi focus on wind power development project of Heru wind farm development area is expected to reach 100km2, the planning capacity of 300 MW. At the same time, in accordance with the overall planning of power grid in Northeast China, strengthen the Heru area 220 k V grid, satisfy the power supply demand for the region, providing regional power supply capacity and reliability, becomes the new planning and construction will be Heru 220 k V transmission project is necessary, after the completion of the substation will become substation is one of the important local power supply network that will focus on supporting the local Eastern Electricity index, the long-term goal is for the local area of eastern and southern power at the same time.In this paper, Heru 220 k V power transmission project construction project as the research object, the analysis and evaluation of technical economy of this project. The paper firstly expounds the background and significance of the research, analyzes the current situation of the domestic and foreign technical and economic evaluation. Then the basic theory of technical and economic evaluation of the project are summarized, on the basis of the specific situation, construction Heru 220 k V power transmission project construction project with the local electricity load outlines. First of all, respectively, the technical analysis of the project from two aspects of project engineering construction scheme and engineering technology; from the project investment estimation, project profitability, solvency three aspects of economic analysis, draws the appraisal conclusion. The results showed that according to the Inner Mongolia Electric Power Company Limited in 2010 sales of electricity as the base, the operation period of the power transmission project in Heru grid average fare 0.003 yuan / kwh. The results of the study show that the investment project after tax rate of return lower than the average level of the industry, so as to ensure the profitability of investment projects, while the capital project payback period is lower than the industry average period, so as to ensure the project debt service on time and ensure the project completed on time. Finally, in the economic evaluation based on the deficiency of 220 k V Heru power transmission engineering projects in part put forward the improvement measures. |