摘要：

Abstract:

【Purpose/significance】As a kind of professional social information, the power demand side information is necessary for cul⁃

tivating power grid construction projects and promoting coordination between power grid construction and the development of eco⁃

nomic and social. The quality of power demand side information is very important for accurately reflecting the demand for social elec⁃

tricity, and the evaluation of its information quality has become a necessary task.【Method/process】 The power demand side informa⁃

tion quality evaluation index system was constructed. Because the extension comprehensive evaluation can calculate the degree of as⁃

sociation between the evaluation object and different classification levels, in order to propose more targeted improvement measures,

the article is based on extenics and builds the evaluation model.【Results/conclusion】 The empirical analysis proves that the evalua⁃

tion model is feasible, and gives the specific location and improvement direction of the evaluation results, and the conclusion is more

instructive.【Innovation/limitation】It is expected that the work of this paper will have certain reference significance for the evaluation

and measurement of information quality in China's power demand side.