1. User-defined decomposition curve: proposed by the market subject, which decomposes the contracted electricity into time-sharing electricity and is determined through bilateral negotiation or listing transaction. The user-defined curve is adopted for bilateral negotiation and listing transactions.

2. Common decomposition curves: including annual, monthly and weekly common decomposition curves, which are formulated and released by the trading center together with the dispatching agency according to the unified dispatching load characteristics of Guangdong power grid. Call auction trading adopts common decomposition curve.