In order to solve the problem of lack of verification method of energy savings for parallel reactive power compensation device installed in power supply and distribution system

two verification methods of energy savings for parallel reactive power compensation are proposed in this paper: the reactive power economic equivalent calculation method and the power factor calculation method for energy saving verification. When the power factor of parallel reactive power compensation devices is not easy to be measured before and after operation

the reactive power economic equivalent calculation method can be used for the verification of energy saving. When the power factor of parallel reactive power compensation devices is easy to be measured before and after operation

the power factor calculation method can be used for the verification of energy saving. Based on the test examples

the uncertainty evaluation of power factor calculation verification method for parallel reactive power compensation is carried out in this paper. The evaluation results illustrate that the accuracy and confidence level of the proposed method are reasonable and reliable.