Measurement and regulation of market power in power market

The market power is a research subject attracting increasing attention in power market reform. The genera- tion suppliers make use of market power to lift electricity price for extra profit, which not only hurts the benefits of the consumers, but also causes the resource unreasonably distributed and the the effective competition can not be created for the market. This is against the initial intention of the power reform thus the measurement and regulation of the market must be conducted. The methods of the market power measurement were summarized as well as their applications. The frequently-used methods for restraining the market power abroad were also introduced.