Feasibility of energy storage technologies with various technologies and different characteristic should be evaluated based on scenarios and evaluation factors in power system. Therefore

we set up a comprehensive feasibility evaluation model of energy storage in power system based on technical performances

annual benefit in cycle life

annual costs in cycle life

and integration performances. In this model

the evaluation system is divided into a target level

a judgment level

an index level

and a scheme level. The basic data of index level are proposed

and the index weight and relationship matrix can be calculated by the analytic hierarchy process（AHP） and fuzzy comprehensive evaluation method

respectively. Finally

the independent evaluation and comprehensive evaluation is carried out. Effectiveness of the proposed feasibility evaluation model and method is verified by the comprehensive evaluation of four distribution-level energy storage technologies. The proposed evaluation method is of great significance to the planning

policy and application of energy storage in power system.