Energy Storage Systems
Global energy demand has risen sharply over the past decade. The reasons for this include economic growth, population growth and the industrialisation of developing countries. Such energy demand must be met in the most stable and sustainable way possible, using renewable energies ( Proton OnSite, 2016 ). Variable electricity generation is a common phenomenon when dealing with renewable resources e.g. wind and sun. Thus, there can be a mismatch between the energy generated and the consumption patterns, leading to the fact that the energy is not necessarily produced at the time it is needed. Furthermore, due to the decentralised and widespread energy generation by renewable sources, the energy is not necessarily produced in places with demand. Energy Storage Systems decouple energy production and consumption, and therefore, can help balance the system by storing energy available at the moment, which is not immediately needed, for future use ( Distributed Control Methods and Cyber Security Issues in Microgrids, 2020 ). Problems to be solved Indirect by increased renewable energy integration: Fossil-fuel energy production Carbon emissions Detrimental air quality Fossil-fuel dependency Directly through storage solutions: Voltage and frequency regulation Grid instability Geographical imbalances Peak shaving Efficiency of renewables Utilisation rate of renewable production