Electric energy statistical method, electric energy metering method and distributed metering statistical system

The invention discloses an electric energy statistical method, an electric energy metering method and a distributed metering statistical system. The electric energy statistical method comprises the following steps: sending a first reading instruction to a metering module; the first reading instruction is used for reading a transfer electric energy parameter, and the transfer electric energy parameter is stored in a first reading area of the metering module; and when a first reply frame of the metering module about the first reading instruction is received, acquiring a transfer electric energy parameter carried in the first reply frame, and obtaining statistical electric energy data according to the transfer electric energy parameter. The electric energy statistics is completely completed on the host side, the metering module is only used for temporary storage and transfer of the electric energy parameters, time synchronization and data synchronization of the host and the metering module are achieved without a