Analysis on Cost Structure and Investment Level of ±800 kV Converter Stations

  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.