Abstract

To promote the applications of energy conservation measures that benefit the system efficiency, District heating companies have been adapting their price models. One way is to introduce a peak demand component in the price model, which has been proved to be effective to reduce the peak demand. Whereas, this approach can result in a significant cost increase for users with high peak demand. Installing energy storage on the demand side is a potential way to save the cost. In order to understand how the energy storage could change the users’ cost and help district heating users to make informed decision, this study analyses the economic benefits of demand-side heat storage. Five types of buildings are considered here: multifamily house, commercial building, hospital and social services, industrial building, and office and school. By doing analysis regarding the users which costs increase mostly, it can be concluded that heat storage could efficiently repress the cost increase, and all the investments will be paid back within 3 years, which means introducing heat storage is an efficient measure for cost saving under the circumstances.

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