As the first technical supporting platform for the whole business procedure of direct trading between electricity users and power generation enterprises in China

the design objective of the platform is introduced. The architecture design is described from the following four aspects: business architecture

application architecture

data architecture and technical architecture. The transaction management of multiple varieties

same-schedule rolling compilation of generating planning

unified settlement of multiple components of electricity quantity

data platform based on dimension decomposition and other key techniques are also analyzed. The platform has been practically applied in the building of state grid unified national electricity market

supporting the direct trading for large-power-end users in more than twenty provinces

including Shanxi

Anhui

Gansu and other pilot provinces. This work is supported by State Grid Corporation of China(No. EPRIDZKJ［2015］1683

No. DZN17201300045).