A gauge for direct economic benefits of energy storage devices

In order to promote the development of energy storage technologies and the selection of energy storage devices practically,orderly and continually,on the basis of the research of energy storage devices' performance and operation economic norms,a formula(YCC) of direct economic benefits of energy storage devices to calculate profit margin(Pm) of operating energy storage devices was deduced.The key factors to reap the economic benefits were the cycle life and cost of chemical energy storage devices.