| Summary: | [Introduction] The paper aims to study on the investment features of ±800 kV Converter Stations and provide guidance for the future constructions of ±800 kV Converter Stations in the field of project cost. [Method] By collecting data of design quantities, project budgets and project settlements of ±800 kV converter stations, we analyzed the costs of ±800kV converter stations by statistical analysis method and cost composition method. [Result] The construction cost and investment level of ±800 kV converter stations is given, and the trend of investment level is judged. [Conclusion] The cost of ±800 kV converter stations per MW is between 0.65~0.97 milion RMB, the componet ratio, arranged from high to low as: equipment procurement cost, other cost, construction cost and installation cost. Moreover, installation cost and other cost are relatively stable, equipment procurement cost is downward, and construction cost is rising. The overall investment level shows a downward trend.
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