Research on service feature extraction of international power engineering contract market-Based on Data of ENR250/225 from 2007 to 2016

According to annual list of the top 250/225 international contractors published by Engineering News-Record(ENR) from 2007 to 2016, the paper filters thousands of data related to power engineering contract. On this basis, the business scale, growth rate and changing trend of international power engineering contract market are first analyzed. Then, with the introduction of a series of indicators, such as Market Concentration Ratio(CR), Herfindahl-Hirschman Index(HHI) and the proportion of international share, the paper studies the development status of large international power engineering contractors. Furthermore, the paper summarizes the performance of Chinese international power engineering contractors and points out the deficiencies. Altogether, through comprehensive service feature analysis of international power engineering contract market, the paper would like to provide decision information support for Chinese contractors to develop overseas power engineering contract markets. It's expected that the results would help power engineering contractors to better serve the market.