Impacts of Energy Storage Technologies and Renewable Energy Sources on Energy Hub Systems
Energy hub is a promising option for integrated management of systems with multiple energy carriers. Distributed energy resources (DER) are energy generation systems near the consumption site, result in lower energy costs, reduced transmission and distribution losses and higher energy efficiency. These systems have the ability to use different technologies such as micro gas turbines, fuel cell, waste heat recovery equipment, and renewable energy sources (RES). RES will play an important role in DER. Nowadays, the largest share of world energy production is related to the fossil fuels. Nevertheless, the scarcity and disadvantages of this type of fuels lead to increased attention to RES and moving towards the 100% renewable energy systems. The main problem of RES is their intermittent nature and fluctuations of their production, which makes it difficult to control and schedule them. So in these systems, it is required to use energy storage systems (ESS) to create a balance between demand and production. Adding ESS increases the reliability of the energy hub in off-grid mode and facilitates the integration of RES to the system. ESS facilitate following the pattern of prices in the energy market, in order to reduce system’s cost in grid-connected mode. Other advantages, goals, and impacts of using ESS in the performance of energy hub are discussed in this chapter. Also, the potential role of RES as inputs in the energy hub models is introduced and discussed.
KeywordsRenewable energy sources Energy storage systems Energy hub
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