Energy data analysis system and method based on big data

The invention relates to the technical field of data analysis, in particular to an energy data analysis system and method based on big data. The system comprises a data acquisition unit which comprises various acquisition units deployed on site, wherein the acquisition units are configured to be used for acquiring original energy data; a data storage unit used for carrying out data segmentation onthe collected original energy data and then carrying out classified storage to remove data redundancy; and a data preprocessing unit used for checking the integrity of the data, removing noise and singular values, reducing the number of effective variables or data samples to be considered by utilizing a data compression and transformation method according to the target of a task, or finding out an invariant identifier of the data, and finally carrying out data standardization. Through data segmentation and classification of the energy data, the redundancy of the energy data is effectively reduced, and the efficiency