In order to explore the formationmechanism of electricity price in competitive electricity market,in this paper,the clearing price and load of California electricity market are considered asstudy object to detect the causal relationship between them by using Granger.Firstly,the long-range auto-correlation of real-time electricity price and quantity ofthe years of 1999 to 2000 as well as the cross-correlation between them aretested.Then,the first-order difference of the charge quantity and itscorresponding price data for 24 periods in 1999 and 2000 is made respectively.After that,we investigate...
